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staff0rd

Standard_D2s_v3

staff0rd
May 31st, 2019
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  1. Process ID: 1
  2. [00:00:01] Current: 108, peak: 108, connected: 103, disconnected: 0, rate: 103/s
  3. [00:00:02] Current: 268, peak: 268, connected: 160, disconnected: 0, rate: 160/s
  4. [00:00:03] Current: 427, peak: 427, connected: 159, disconnected: 0, rate: 159/s
  5. [00:00:03] Current: 590, peak: 590, connected: 163, disconnected: 0, rate: 163/s
  6. [00:00:05] Current: 753, peak: 753, connected: 163, disconnected: 0, rate: 163/s
  7. [00:00:06] Current: 924, peak: 924, connected: 171, disconnected: 0, rate: 171/s
  8. [00:00:07] Current: 1152, peak: 1152, connected: 228, disconnected: 0, rate: 228/s
  9. [00:00:07] Current: 1461, peak: 1461, connected: 309, disconnected: 0, rate: 309/s
  10. [00:00:09] Current: 1803, peak: 1803, connected: 342, disconnected: 0, rate: 342/s
  11. [00:00:10] Current: 2141, peak: 2141, connected: 338, disconnected: 0, rate: 338/s
  12. [00:00:11] Current: 2482, peak: 2482, connected: 341, disconnected: 0, rate: 341/s
  13. [00:00:12] Current: 2827, peak: 2827, connected: 345, disconnected: 0, rate: 345/s
  14. [00:00:12] Current: 3175, peak: 3175, connected: 348, disconnected: 0, rate: 348/s
  15. [00:00:13] Current: 3574, peak: 3574, connected: 399, disconnected: 0, rate: 399/s
  16. [00:00:14] Current: 3993, peak: 3993, connected: 419, disconnected: 0, rate: 419/s
  17. [00:00:16] Current: 4423, peak: 4423, connected: 430, disconnected: 0, rate: 430/s
  18. [00:00:16] Current: 4838, peak: 4838, connected: 415, disconnected: 0, rate: 415/s
  19. [00:00:17] Current: 5261, peak: 5261, connected: 423, disconnected: 0, rate: 423/s
  20. [00:00:19] Current: 5688, peak: 5688, connected: 427, disconnected: 0, rate: 427/s
  21. [00:00:20] Current: 6115, peak: 6115, connected: 427, disconnected: 0, rate: 427/s
  22. [00:00:21] Current: 6593, peak: 6593, connected: 478, disconnected: 0, rate: 478/s
  23. [00:00:22] Current: 7088, peak: 7088, connected: 495, disconnected: 0, rate: 495/s
  24. [00:00:23] Current: 7584, peak: 7584, connected: 496, disconnected: 0, rate: 496/s
  25. [00:00:24] Current: 8086, peak: 8086, connected: 502, disconnected: 0, rate: 502/s
  26. [00:00:25] Current: 8583, peak: 8583, connected: 497, disconnected: 0, rate: 497/s
  27. [00:00:26] Current: 9088, peak: 9088, connected: 505, disconnected: 0, rate: 505/s
  28. [00:00:26] Current: 9570, peak: 9570, connected: 482, disconnected: 0, rate: 482/s
  29. [00:00:27] Current: 10062, peak: 10062, connected: 492, disconnected: 0, rate: 492/s
  30. [00:00:29] Current: 10376, peak: 10376, connected: 314, disconnected: 0, rate: 314/s
  31. [00:00:30] Current: 10864, peak: 10864, connected: 488, disconnected: 0, rate: 488/s
  32. [00:00:31] Current: 11331, peak: 11331, connected: 467, disconnected: 0, rate: 467/s
  33. [00:00:32] Current: 11822, peak: 11822, connected: 491, disconnected: 0, rate: 491/s
  34. [00:00:33] Current: 12311, peak: 12311, connected: 489, disconnected: 0, rate: 489/s
  35. [00:00:34] Current: 12799, peak: 12799, connected: 488, disconnected: 0, rate: 488/s
  36. [00:00:35] Current: 13289, peak: 13289, connected: 490, disconnected: 0, rate: 490/s
  37. [00:00:36] Current: 13786, peak: 13786, connected: 497, disconnected: 0, rate: 497/s
  38. [00:00:37] Current: 14248, peak: 14248, connected: 462, disconnected: 0, rate: 462/s
  39. [00:00:38] Current: 14761, peak: 14761, connected: 513, disconnected: 0, rate: 513/s
  40. [00:00:39] Current: 15256, peak: 15256, connected: 495, disconnected: 0, rate: 495/s
  41. [00:00:40] Current: 15749, peak: 15749, connected: 493, disconnected: 0, rate: 493/s
  42. [00:00:41] Current: 16255, peak: 16255, connected: 506, disconnected: 0, rate: 506/s
  43. [00:00:42] Current: 16718, peak: 16718, connected: 463, disconnected: 0, rate: 463/s
  44. [00:00:43] Current: 17202, peak: 17202, connected: 484, disconnected: 0, rate: 484/s
  45. [00:00:44] Current: 17658, peak: 17658, connected: 456, disconnected: 0, rate: 456/s
  46. [00:00:45] Current: 18041, peak: 18041, connected: 383, disconnected: 0, rate: 383/s
  47. [00:00:46] Current: 18505, peak: 18505, connected: 464, disconnected: 0, rate: 464/s
  48. [00:00:47] Current: 18978, peak: 18978, connected: 473, disconnected: 0, rate: 473/s
  49. [00:00:48] Current: 19447, peak: 19447, connected: 469, disconnected: 0, rate: 469/s
  50. [00:00:49] Current: 19927, peak: 19927, connected: 480, disconnected: 0, rate: 480/s
  51. [00:00:50] Current: 20407, peak: 20407, connected: 480, disconnected: 0, rate: 480/s
  52. [00:00:51] Current: 20878, peak: 20878, connected: 471, disconnected: 0, rate: 471/s
  53. [00:00:52] Current: 21355, peak: 21355, connected: 477, disconnected: 0, rate: 477/s
  54. [00:00:53] Current: 21827, peak: 21827, connected: 472, disconnected: 0, rate: 472/s
  55. [00:00:54] Current: 22287, peak: 22287, connected: 460, disconnected: 0, rate: 460/s
  56. [00:00:55] Current: 22747, peak: 22747, connected: 460, disconnected: 0, rate: 460/s
  57. [00:00:56] Current: 23179, peak: 23179, connected: 432, disconnected: 0, rate: 432/s
  58. [00:00:57] Current: 23649, peak: 23649, connected: 470, disconnected: 0, rate: 470/s
  59. [00:00:58] Current: 24102, peak: 24102, connected: 453, disconnected: 0, rate: 453/s
  60. [00:00:59] Current: 24576, peak: 24576, connected: 474, disconnected: 0, rate: 474/s
  61. [00:01:00] Current: 25044, peak: 25044, connected: 468, disconnected: 0, rate: 468/s
  62. [00:01:01] Current: 25484, peak: 25484, connected: 440, disconnected: 0, rate: 440/s
  63. [00:01:02] Current: 25657, peak: 25657, connected: 173, disconnected: 0, rate: 173/s
  64. [00:01:03] Current: 26060, peak: 26060, connected: 403, disconnected: 0, rate: 403/s
  65. [00:01:04] Current: 26496, peak: 26496, connected: 436, disconnected: 0, rate: 436/s
  66. [00:01:05] Current: 26935, peak: 26935, connected: 439, disconnected: 0, rate: 439/s
  67. [00:01:06] Current: 27390, peak: 27390, connected: 455, disconnected: 0, rate: 455/s
  68. [00:01:07] Current: 27856, peak: 27856, connected: 466, disconnected: 0, rate: 466/s
  69. [00:01:08] Current: 28293, peak: 28293, connected: 437, disconnected: 0, rate: 437/s
  70. [00:01:09] Current: 28742, peak: 28742, connected: 449, disconnected: 0, rate: 449/s
  71. [00:01:10] Current: 29200, peak: 29200, connected: 458, disconnected: 0, rate: 458/s
  72. [00:01:11] Current: 29649, peak: 29649, connected: 449, disconnected: 0, rate: 449/s
  73. [00:01:12] Current: 30100, peak: 30100, connected: 451, disconnected: 0, rate: 451/s
  74. [00:01:13] Current: 30520, peak: 30520, connected: 420, disconnected: 0, rate: 420/s
  75. [00:01:14] Current: 30950, peak: 30950, connected: 430, disconnected: 0, rate: 430/s
  76. [00:01:15] Current: 31413, peak: 31413, connected: 463, disconnected: 0, rate: 463/s
  77. [00:01:17] Current: 31719, peak: 31719, connected: 306, disconnected: 0, rate: 306/s
  78. [00:01:18] Current: 32100, peak: 32100, connected: 381, disconnected: 0, rate: 381/s
  79. [00:01:19] Current: 32510, peak: 32510, connected: 410, disconnected: 0, rate: 410/s
  80. [00:01:20] Current: 32952, peak: 32952, connected: 442, disconnected: 0, rate: 442/s
  81. [00:01:21] Current: 33422, peak: 33422, connected: 470, disconnected: 0, rate: 470/s
  82. [00:01:22] Current: 33831, peak: 33831, connected: 409, disconnected: 0, rate: 409/s
  83. [00:01:23] Current: 34272, peak: 34272, connected: 441, disconnected: 0, rate: 441/s
  84. [00:01:24] Current: 34657, peak: 34657, connected: 385, disconnected: 0, rate: 385/s
  85. [00:01:25] Current: 35108, peak: 35108, connected: 451, disconnected: 0, rate: 451/s
  86. [00:01:26] Current: 35463, peak: 35463, connected: 355, disconnected: 0, rate: 355/s
  87. [00:01:27] Current: 35887, peak: 35887, connected: 424, disconnected: 0, rate: 424/s
  88. [00:01:28] Current: 36288, peak: 36288, connected: 401, disconnected: 0, rate: 401/s
  89. [00:01:29] Current: 36671, peak: 36671, connected: 383, disconnected: 0, rate: 383/s
  90. [00:01:31] Current: 37096, peak: 37096, connected: 425, disconnected: 0, rate: 425/s
  91. [00:01:32] Current: 37245, peak: 37245, connected: 149, disconnected: 0, rate: 149/s
  92. [00:01:33] Current: 37548, peak: 37548, connected: 303, disconnected: 0, rate: 303/s
  93. [00:01:34] Current: 37871, peak: 37871, connected: 323, disconnected: 0, rate: 323/s
  94. [00:01:35] Current: 38122, peak: 38122, connected: 251, disconnected: 0, rate: 251/s
  95. [00:01:36] Current: 38541, peak: 38541, connected: 419, disconnected: 0, rate: 419/s
  96. [00:01:37] Current: 38982, peak: 38982, connected: 441, disconnected: 0, rate: 441/s
  97. [00:01:38] Current: 39405, peak: 39405, connected: 423, disconnected: 0, rate: 423/s
  98. [00:01:39] Current: 39778, peak: 39778, connected: 373, disconnected: 0, rate: 373/s
  99. [00:01:40] Current: 40115, peak: 40115, connected: 337, disconnected: 0, rate: 337/s
  100. [00:01:41] Current: 40483, peak: 40483, connected: 368, disconnected: 0, rate: 368/s
  101. [00:01:42] Current: 40916, peak: 40916, connected: 433, disconnected: 0, rate: 433/s
  102. [00:01:43] Current: 41383, peak: 41383, connected: 467, disconnected: 0, rate: 467/s
  103. [00:01:45] Current: 41719, peak: 41719, connected: 336, disconnected: 0, rate: 336/s
  104. [00:01:46] Current: 41925, peak: 41925, connected: 206, disconnected: 0, rate: 206/s
  105. [00:01:47] Current: 42353, peak: 42353, connected: 428, disconnected: 0, rate: 428/s
  106. [00:01:48] Current: 42744, peak: 42744, connected: 391, disconnected: 0, rate: 391/s
  107. [00:01:49] Current: 43145, peak: 43145, connected: 401, disconnected: 0, rate: 401/s
  108. [00:01:50] Current: 43507, peak: 43507, connected: 362, disconnected: 0, rate: 362/s
  109. [00:01:51] Current: 43884, peak: 43884, connected: 377, disconnected: 0, rate: 377/s
  110. [00:01:52] Current: 44243, peak: 44243, connected: 359, disconnected: 0, rate: 359/s
  111. [00:01:53] Current: 44573, peak: 44573, connected: 330, disconnected: 0, rate: 330/s
  112. [00:01:54] Current: 44997, peak: 44997, connected: 424, disconnected: 0, rate: 424/s
  113. [00:01:55] Current: 45322, peak: 45322, connected: 325, disconnected: 0, rate: 325/s
  114. [00:01:56] Current: 45695, peak: 45695, connected: 373, disconnected: 0, rate: 373/s
  115. [00:01:57] Current: 46061, peak: 46061, connected: 366, disconnected: 0, rate: 366/s
  116. [00:02:00] Current: 46389, peak: 46389, connected: 328, disconnected: 0, rate: 328/s
  117. [00:02:01] Current: 46646, peak: 46646, connected: 257, disconnected: 0, rate: 257/s
  118. [00:02:02] Current: 47011, peak: 47011, connected: 365, disconnected: 0, rate: 365/s
  119. [00:02:03] Current: 47439, peak: 47439, connected: 428, disconnected: 0, rate: 428/s
  120. [00:02:04] Current: 47824, peak: 47824, connected: 385, disconnected: 0, rate: 385/s
  121. [00:02:05] Current: 48153, peak: 48153, connected: 329, disconnected: 0, rate: 329/s
  122. [00:02:06] Current: 48579, peak: 48579, connected: 426, disconnected: 0, rate: 426/s
  123. [00:02:07] Current: 48915, peak: 48915, connected: 336, disconnected: 0, rate: 336/s
  124. [00:02:08] Current: 49332, peak: 49332, connected: 417, disconnected: 0, rate: 417/s
  125. [00:02:09] Current: 49538, peak: 49538, connected: 206, disconnected: 0, rate: 206/s
  126. [00:02:10] Current: 49912, peak: 49912, connected: 374, disconnected: 0, rate: 374/s
  127. [00:02:11] Current: 50196, peak: 50196, connected: 284, disconnected: 0, rate: 284/s
  128. [00:02:12] Current: 50201, peak: 50201, connected: 5, disconnected: 0, rate: 5/s
  129. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  130. Heartbeat took longer than "00:00:01" at "06/01/2019 00:28:58 +00:00".
  131. [00:02:13] Current: 50246, peak: 50246, connected: 45, disconnected: 0, rate: 45/s
  132. [00:02:14] Current: 50641, peak: 50641, connected: 395, disconnected: 0, rate: 395/s
  133. [00:02:15] Current: 50964, peak: 50964, connected: 323, disconnected: 0, rate: 323/s
  134. [00:02:16] Current: 51307, peak: 51307, connected: 343, disconnected: 0, rate: 343/s
  135. [00:02:17] Current: 51695, peak: 51695, connected: 388, disconnected: 0, rate: 388/s
  136. [00:02:18] Current: 52096, peak: 52096, connected: 401, disconnected: 0, rate: 401/s
  137. [00:02:19] Current: 52479, peak: 52479, connected: 383, disconnected: 0, rate: 383/s
  138. [00:02:20] Current: 52614, peak: 52614, connected: 135, disconnected: 0, rate: 135/s
  139. [00:02:21] Current: 52707, peak: 52707, connected: 93, disconnected: 0, rate: 93/s
  140. [00:02:22] Current: 53073, peak: 53073, connected: 366, disconnected: 0, rate: 366/s
  141. [00:02:23] Current: 53382, peak: 53382, connected: 309, disconnected: 0, rate: 309/s
  142. [00:02:25] Current: 53672, peak: 53672, connected: 290, disconnected: 0, rate: 290/s
  143. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  144. Heartbeat took longer than "00:00:01" at "06/01/2019 00:29:11 +00:00".
  145. [00:02:26] Current: 53682, peak: 53682, connected: 10, disconnected: 0, rate: 10/s
  146. [00:02:27] Current: 53776, peak: 53776, connected: 94, disconnected: 0, rate: 94/s
  147. [00:02:28] Current: 53941, peak: 53941, connected: 165, disconnected: 0, rate: 165/s
  148. [00:02:29] Current: 54217, peak: 54217, connected: 276, disconnected: 0, rate: 276/s
  149. [00:02:31] Current: 54532, peak: 54532, connected: 315, disconnected: 0, rate: 315/s
  150. [00:02:32] Current: 54606, peak: 54606, connected: 74, disconnected: 0, rate: 74/s
  151. [00:02:33] Current: 54875, peak: 54875, connected: 269, disconnected: 0, rate: 269/s
  152. [00:02:35] Current: 55067, peak: 55067, connected: 192, disconnected: 0, rate: 192/s
  153. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  154. Heartbeat took longer than "00:00:01" at "06/01/2019 00:29:22 +00:00".
  155. [00:02:37] Current: 55149, peak: 55149, connected: 82, disconnected: 0, rate: 82/s
  156. [00:02:38] Current: 55167, peak: 55167, connected: 18, disconnected: 0, rate: 18/s
  157. [00:02:39] Current: 55427, peak: 55427, connected: 260, disconnected: 0, rate: 260/s
  158. [00:02:40] Current: 55780, peak: 55780, connected: 353, disconnected: 0, rate: 353/s
  159. [00:02:41] Current: 56171, peak: 56171, connected: 391, disconnected: 0, rate: 391/s
  160. [00:02:42] Current: 56291, peak: 56291, connected: 120, disconnected: 0, rate: 120/s
  161. [00:02:43] Current: 56697, peak: 56697, connected: 406, disconnected: 0, rate: 406/s
  162. [00:02:44] Current: 56930, peak: 56930, connected: 233, disconnected: 0, rate: 233/s
  163. [00:02:45] Current: 57225, peak: 57225, connected: 295, disconnected: 0, rate: 295/s
  164. [00:02:46] Current: 57330, peak: 57330, connected: 105, disconnected: 0, rate: 105/s
  165. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  166. Heartbeat took longer than "00:00:01" at "06/01/2019 00:29:33 +00:00".
  167. [00:02:47] Current: 57367, peak: 57367, connected: 37, disconnected: 0, rate: 37/s
  168. [00:02:48] Current: 57601, peak: 57601, connected: 234, disconnected: 0, rate: 234/s
  169. [00:02:49] Current: 57949, peak: 57949, connected: 348, disconnected: 0, rate: 348/s
  170. [00:02:50] Current: 58397, peak: 58397, connected: 448, disconnected: 0, rate: 448/s
  171. [00:02:51] Current: 58520, peak: 58520, connected: 123, disconnected: 0, rate: 123/s
  172. [00:02:52] Current: 58812, peak: 58812, connected: 292, disconnected: 0, rate: 292/s
  173. [00:02:53] Current: 59026, peak: 59026, connected: 214, disconnected: 0, rate: 214/s
  174. [00:02:54] Current: 59301, peak: 59301, connected: 275, disconnected: 0, rate: 275/s
  175. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  176. Heartbeat took longer than "00:00:01" at "06/01/2019 00:29:43 +00:00".
  177. [00:02:57] Current: 59675, peak: 59675, connected: 374, disconnected: 0, rate: 374/s
  178. [00:02:58] Current: 59700, peak: 59700, connected: 25, disconnected: 0, rate: 25/s
  179. [00:02:59] Current: 59792, peak: 59792, connected: 92, disconnected: 0, rate: 92/s
  180. [00:03:00] Current: 60048, peak: 60048, connected: 256, disconnected: 0, rate: 256/s
  181. [00:03:01] Current: 60392, peak: 60392, connected: 344, disconnected: 0, rate: 344/s
  182. [00:03:02] Current: 60692, peak: 60692, connected: 300, disconnected: 0, rate: 300/s
  183. [00:03:03] Current: 60743, peak: 60743, connected: 51, disconnected: 0, rate: 51/s
  184. [00:03:04] Current: 61000, peak: 61000, connected: 257, disconnected: 0, rate: 257/s
  185. [00:03:05] Current: 61348, peak: 61348, connected: 348, disconnected: 0, rate: 348/s
  186. [00:03:08] Current: 61649, peak: 61649, connected: 301, disconnected: 0, rate: 301/s
  187. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  188. Heartbeat took longer than "00:00:01" at "06/01/2019 00:29:54 +00:00".
  189. [00:03:09] Current: 61700, peak: 61700, connected: 51, disconnected: 0, rate: 51/s
  190. [00:03:10] Current: 61806, peak: 61806, connected: 106, disconnected: 0, rate: 106/s
  191. [00:03:11] Current: 62175, peak: 62175, connected: 369, disconnected: 0, rate: 369/s
  192. [00:03:12] Current: 62363, peak: 62363, connected: 188, disconnected: 0, rate: 188/s
  193. [00:03:13] Current: 62581, peak: 62581, connected: 218, disconnected: 0, rate: 218/s
  194. [00:03:14] Current: 62765, peak: 62765, connected: 184, disconnected: 0, rate: 184/s
  195. [00:03:15] Current: 62917, peak: 62917, connected: 152, disconnected: 0, rate: 152/s
  196. [00:03:17] Current: 63053, peak: 63053, connected: 136, disconnected: 0, rate: 136/s
  197. [00:03:18] Current: 63076, peak: 63076, connected: 23, disconnected: 0, rate: 23/s
  198. [00:03:19] Current: 63321, peak: 63321, connected: 245, disconnected: 0, rate: 245/s
  199. [00:03:20] Current: 63690, peak: 63690, connected: 369, disconnected: 0, rate: 369/s
  200. [00:03:21] Current: 64045, peak: 64045, connected: 355, disconnected: 0, rate: 355/s
  201. [00:03:22] Current: 64265, peak: 64265, connected: 220, disconnected: 0, rate: 220/s
  202. [00:03:23] Current: 64560, peak: 64560, connected: 295, disconnected: 0, rate: 295/s
  203. [00:03:24] Current: 64691, peak: 64691, connected: 131, disconnected: 0, rate: 131/s
  204. [00:03:25] Current: 64988, peak: 64988, connected: 297, disconnected: 0, rate: 297/s
  205. [00:03:26] Current: 65367, peak: 65367, connected: 379, disconnected: 0, rate: 379/s
  206. [00:03:28] Current: 65553, peak: 65553, connected: 186, disconnected: 0, rate: 186/s
  207. [00:03:30] Current: 65588, peak: 65588, connected: 35, disconnected: 0, rate: 35/s
  208. [00:03:31] Current: 65653, peak: 65653, connected: 65, disconnected: 0, rate: 65/s
  209. [00:03:32] Current: 65933, peak: 65933, connected: 280, disconnected: 0, rate: 280/s
  210. [00:03:33] Current: 66221, peak: 66221, connected: 288, disconnected: 0, rate: 288/s
  211. [00:03:34] Current: 66474, peak: 66474, connected: 253, disconnected: 0, rate: 253/s
  212. [00:03:35] Current: 66814, peak: 66814, connected: 340, disconnected: 0, rate: 340/s
  213. [00:03:36] Current: 67197, peak: 67197, connected: 383, disconnected: 0, rate: 383/s
  214. [00:03:37] Current: 67448, peak: 67448, connected: 251, disconnected: 0, rate: 251/s
  215. [00:03:38] Current: 67448, peak: 67448, connected: 0, disconnected: 0, rate: 0/s
  216. [00:03:40] Current: 67501, peak: 67501, connected: 53, disconnected: 0, rate: 53/s
  217. [00:03:41] Current: 67531, peak: 67531, connected: 30, disconnected: 0, rate: 30/s
  218. [00:03:42] Current: 67649, peak: 67649, connected: 118, disconnected: 0, rate: 118/s
  219. [00:03:43] Current: 68051, peak: 68051, connected: 402, disconnected: 0, rate: 402/s
  220. [00:03:44] Current: 68315, peak: 68315, connected: 264, disconnected: 0, rate: 264/s
  221. [00:03:45] Current: 68381, peak: 68381, connected: 66, disconnected: 0, rate: 66/s
  222. [00:03:46] Current: 68438, peak: 68438, connected: 57, disconnected: 0, rate: 57/s
  223. [00:03:47] Current: 68835, peak: 68835, connected: 397, disconnected: 0, rate: 397/s
  224. [00:03:50] Current: 69126, peak: 69126, connected: 291, disconnected: 0, rate: 291/s
  225. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  226. Heartbeat took longer than "00:00:01" at "06/01/2019 00:30:36 +00:00".
  227. [00:03:51] Current: 69137, peak: 69137, connected: 11, disconnected: 0, rate: 11/s
  228. [00:03:52] Current: 69161, peak: 69161, connected: 24, disconnected: 0, rate: 24/s
  229. [00:03:53] Current: 69226, peak: 69226, connected: 65, disconnected: 0, rate: 65/s
  230. [00:03:54] Current: 69372, peak: 69372, connected: 146, disconnected: 0, rate: 146/s
  231. [00:03:55] Current: 69420, peak: 69420, connected: 48, disconnected: 0, rate: 48/s
  232. [00:03:56] Current: 69708, peak: 69708, connected: 288, disconnected: 0, rate: 288/s
  233. [00:03:57] Current: 70132, peak: 70132, connected: 424, disconnected: 0, rate: 424/s
  234. [00:03:58] Current: 70515, peak: 70515, connected: 383, disconnected: 0, rate: 383/s
  235. [00:03:59] Current: 70731, peak: 70731, connected: 216, disconnected: 0, rate: 216/s
  236. [00:04:01] Current: 70759, peak: 70759, connected: 28, disconnected: 0, rate: 28/s
  237. [00:04:02] Current: 70774, peak: 70774, connected: 15, disconnected: 0, rate: 15/s
  238. [00:04:03] Current: 70855, peak: 70855, connected: 81, disconnected: 0, rate: 81/s
  239. [00:04:04] Current: 71234, peak: 71234, connected: 379, disconnected: 0, rate: 379/s
  240. [00:04:05] Current: 71586, peak: 71586, connected: 352, disconnected: 0, rate: 352/s
  241. [00:04:06] Current: 71662, peak: 71662, connected: 76, disconnected: 0, rate: 76/s
  242. [00:04:07] Current: 71977, peak: 71977, connected: 315, disconnected: 0, rate: 315/s
  243. [00:04:08] Current: 72089, peak: 72089, connected: 112, disconnected: 0, rate: 112/s
  244. [00:04:09] Current: 72400, peak: 72400, connected: 311, disconnected: 0, rate: 311/s
  245. [00:04:10] Current: 72538, peak: 72538, connected: 138, disconnected: 0, rate: 138/s
  246. [00:04:12] Current: 72785, peak: 72785, connected: 247, disconnected: 0, rate: 247/s
  247. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  248. Heartbeat took longer than "00:00:01" at "06/01/2019 00:30:58 +00:00".
  249. [00:04:13] Current: 72812, peak: 72812, connected: 27, disconnected: 0, rate: 27/s
  250. [00:04:14] Current: 73116, peak: 73116, connected: 304, disconnected: 0, rate: 304/s
  251. [00:04:15] Current: 73235, peak: 73235, connected: 119, disconnected: 0, rate: 119/s
  252. [00:04:16] Current: 73661, peak: 73661, connected: 426, disconnected: 0, rate: 426/s
  253. [00:04:17] Current: 73761, peak: 73761, connected: 100, disconnected: 0, rate: 100/s
  254. [00:04:18] Current: 74149, peak: 74149, connected: 388, disconnected: 0, rate: 388/s
  255. [00:04:19] Current: 74553, peak: 74553, connected: 404, disconnected: 0, rate: 404/s
  256. [00:04:20] Current: 74943, peak: 74943, connected: 390, disconnected: 0, rate: 390/s
  257. [00:04:21] Current: 75025, peak: 75025, connected: 82, disconnected: 0, rate: 82/s
  258. [00:04:23] Current: 75026, peak: 75026, connected: 1, disconnected: 0, rate: 1/s
  259. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  260. Heartbeat took longer than "00:00:01" at "06/01/2019 00:31:09 +00:00".
  261. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  262. Heartbeat took longer than "00:00:01" at "06/01/2019 00:31:09 +00:00".
  263. [00:04:24] Current: 75053, peak: 75053, connected: 27, disconnected: 0, rate: 27/s
  264. [00:04:25] Current: 75111, peak: 75111, connected: 58, disconnected: 0, rate: 58/s
  265. [00:04:26] Current: 75140, peak: 75140, connected: 29, disconnected: 0, rate: 29/s
  266. [00:04:27] Current: 75519, peak: 75519, connected: 379, disconnected: 0, rate: 379/s
  267. [00:04:28] Current: 75948, peak: 75948, connected: 429, disconnected: 0, rate: 429/s
  268. [00:04:29] Current: 76294, peak: 76294, connected: 346, disconnected: 0, rate: 346/s
  269. [00:04:30] Current: 76418, peak: 76418, connected: 124, disconnected: 0, rate: 124/s
  270. [00:04:31] Current: 76737, peak: 76737, connected: 319, disconnected: 0, rate: 319/s
  271. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  272. Heartbeat took longer than "00:00:01" at "06/01/2019 00:31:19 +00:00".
  273. [00:04:33] Current: 76809, peak: 76809, connected: 72, disconnected: 0, rate: 72/s
  274. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  275. Heartbeat took longer than "00:00:01" at "06/01/2019 00:31:19 +00:00".
  276. [00:04:34] Current: 76848, peak: 76848, connected: 39, disconnected: 0, rate: 39/s
  277. [00:04:35] Current: 76982, peak: 76982, connected: 134, disconnected: 0, rate: 134/s
  278. [00:04:36] Current: 77424, peak: 77424, connected: 442, disconnected: 0, rate: 442/s
  279. [00:04:38] Current: 77482, peak: 77482, connected: 58, disconnected: 0, rate: 58/s
  280. [00:04:39] Current: 77766, peak: 77766, connected: 284, disconnected: 0, rate: 284/s
  281. [00:04:40] Current: 78021, peak: 78021, connected: 255, disconnected: 0, rate: 255/s
  282. [00:04:42] Current: 78178, peak: 78178, connected: 157, disconnected: 0, rate: 157/s
  283. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  284. Heartbeat took longer than "00:00:01" at "06/01/2019 00:31:28 +00:00".
  285. [00:04:43] Current: 78213, peak: 78213, connected: 35, disconnected: 0, rate: 35/s
  286. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  287. Heartbeat took longer than "00:00:01" at "06/01/2019 00:31:29 +00:00".
  288. [00:04:44] Current: 78217, peak: 78217, connected: 4, disconnected: 0, rate: 4/s
  289. [00:04:46] Current: 78260, peak: 78260, connected: 43, disconnected: 0, rate: 43/s
  290. [00:04:49] Current: 78260, peak: 78260, connected: 0, disconnected: 0, rate: 0/s
  291. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  292. Heartbeat took longer than "00:00:01" at "06/01/2019 00:31:36 +00:00".
  293. [00:04:50] Current: 78260, peak: 78260, connected: 0, disconnected: 0, rate: 0/s
  294. [00:04:51] Current: 78260, peak: 78260, connected: 0, disconnected: 0, rate: 0/s
  295. [00:04:54] Current: 78260, peak: 78260, connected: 0, disconnected: 0, rate: 0/s
  296. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  297. Heartbeat took longer than "00:00:01" at "06/01/2019 00:31:40 +00:00".
  298. [00:04:58] Current: 78277, peak: 78277, connected: 17, disconnected: 0, rate: 17/s
  299. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  300. Heartbeat took longer than "00:00:01" at "06/01/2019 00:31:44 +00:00".
  301. [00:04:59] Current: 78277, peak: 78277, connected: 0, disconnected: 0, rate: 0/s
  302. [00:05:00] Current: 78277, peak: 78277, connected: 0, disconnected: 0, rate: 0/s
  303. [00:05:02] Current: 78277, peak: 78277, connected: 0, disconnected: 0, rate: 0/s
  304. [00:05:06] Current: 78280, peak: 78280, connected: 3, disconnected: 0, rate: 3/s
  305. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  306. Heartbeat took longer than "00:00:01" at "06/01/2019 00:31:53 +00:00".
  307. [00:05:07] Current: 78280, peak: 78280, connected: 0, disconnected: 0, rate: 0/s
  308. [00:05:09] Current: 78280, peak: 78280, connected: 0, disconnected: 0, rate: 0/s
  309. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  310. Heartbeat took longer than "00:00:01" at "06/01/2019 00:31:55 +00:00".
  311. [00:05:10] Current: 78313, peak: 78313, connected: 33, disconnected: 0, rate: 33/s
  312. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  313. Heartbeat took longer than "00:00:01" at "06/01/2019 00:31:57 +00:00".
  314. [00:05:11] Current: 78313, peak: 78313, connected: 0, disconnected: 0, rate: 0/s
  315. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  316. Heartbeat took longer than "00:00:01" at "06/01/2019 00:31:58 +00:00".
  317. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  318. Heartbeat took longer than "00:00:01" at "06/01/2019 00:31:58 +00:00".
  319. [00:05:14] Current: 78297, peak: 78313, connected: 0, disconnected: 16, rate: -16/s
  320. [00:05:15] Current: 78344, peak: 78344, connected: 47, disconnected: 0, rate: 47/s
  321. [00:05:16] Current: 78344, peak: 78344, connected: 0, disconnected: 0, rate: 0/s
  322. [00:05:17] Current: 78344, peak: 78344, connected: 0, disconnected: 0, rate: 0/s
  323. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  324. Heartbeat took longer than "00:00:01" at "06/01/2019 00:32:04 +00:00".
  325. [00:05:18] Current: 78343, peak: 78344, connected: 0, disconnected: 1, rate: -1/s
  326. [00:05:20] Current: 78343, peak: 78344, connected: 0, disconnected: 0, rate: 0/s
  327. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  328. Heartbeat took longer than "00:00:01" at "06/01/2019 00:32:06 +00:00".
  329. [00:05:22] Current: 78341, peak: 78344, connected: 0, disconnected: 2, rate: -2/s
  330. [00:05:25] Current: 78341, peak: 78344, connected: 0, disconnected: 0, rate: 0/s
  331. [00:05:26] Current: 78358, peak: 78358, connected: 17, disconnected: 0, rate: 17/s
  332. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  333. Heartbeat took longer than "00:00:01" at "06/01/2019 00:32:12 +00:00".
  334. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  335. Heartbeat took longer than "00:00:01" at "06/01/2019 00:32:13 +00:00".
  336. [00:05:27] Current: 78358, peak: 78358, connected: 0, disconnected: 0, rate: 0/s
  337. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  338. Heartbeat took longer than "00:00:01" at "06/01/2019 00:32:13 +00:00".
  339. [00:05:30] Current: 78358, peak: 78358, connected: 0, disconnected: 0, rate: 0/s
  340. [00:05:32] Current: 78361, peak: 78361, connected: 3, disconnected: 0, rate: 3/s
  341. [00:05:33] Current: 78361, peak: 78361, connected: 0, disconnected: 0, rate: 0/s
  342. [00:05:34] Current: 78394, peak: 78394, connected: 33, disconnected: 0, rate: 33/s
  343. [00:05:36] Current: 78394, peak: 78394, connected: 0, disconnected: 0, rate: 0/s
  344. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  345. Heartbeat took longer than "00:00:01" at "06/01/2019 00:32:22 +00:00".
  346. [00:05:37] Current: 78394, peak: 78394, connected: 0, disconnected: 0, rate: 0/s
  347. [00:05:38] Current: 78441, peak: 78441, connected: 47, disconnected: 0, rate: 47/s
  348. [00:05:39] Current: 78441, peak: 78441, connected: 0, disconnected: 0, rate: 0/s
  349. [00:05:40] Current: 78458, peak: 78458, connected: 17, disconnected: 0, rate: 17/s
  350. [00:05:41] Current: 78458, peak: 78458, connected: 0, disconnected: 0, rate: 0/s
  351. [00:05:43] Current: 78495, peak: 78495, connected: 37, disconnected: 0, rate: 37/s
  352. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  353. Heartbeat took longer than "00:00:01" at "06/01/2019 00:32:29 +00:00".
  354. [00:05:45] Current: 78495, peak: 78495, connected: 0, disconnected: 0, rate: 0/s
  355. [00:05:46] Current: 78541, peak: 78541, connected: 46, disconnected: 0, rate: 46/s
  356. [00:05:47] Current: 78558, peak: 78558, connected: 17, disconnected: 0, rate: 17/s
  357. [00:05:50] Current: 78558, peak: 78558, connected: 0, disconnected: 0, rate: 0/s
  358. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  359. Heartbeat took longer than "00:00:01" at "06/01/2019 00:32:36 +00:00".
  360. [00:05:51] Current: 78558, peak: 78558, connected: 0, disconnected: 0, rate: 0/s
  361. [00:05:52] Current: 78558, peak: 78558, connected: 0, disconnected: 0, rate: 0/s
  362. [00:05:53] Current: 78558, peak: 78558, connected: 0, disconnected: 0, rate: 0/s
  363. [00:05:54] Current: 78595, peak: 78595, connected: 37, disconnected: 0, rate: 37/s
  364. [00:05:55] Current: 78595, peak: 78595, connected: 0, disconnected: 0, rate: 0/s
  365. [00:05:56] Current: 78805, peak: 78805, connected: 210, disconnected: 0, rate: 210/s
  366. [00:05:58] Current: 79020, peak: 79020, connected: 215, disconnected: 0, rate: 215/s
  367. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  368. Heartbeat took longer than "00:00:01" at "06/01/2019 00:32:44 +00:00".
  369. [00:06:00] Current: 79090, peak: 79090, connected: 70, disconnected: 0, rate: 70/s
  370. [00:06:01] Current: 79120, peak: 79120, connected: 30, disconnected: 0, rate: 30/s
  371. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  372. Heartbeat took longer than "00:00:01" at "06/01/2019 00:32:48 +00:00".
  373. [00:06:02] Current: 79120, peak: 79120, connected: 0, disconnected: 0, rate: 0/s
  374. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  375. Heartbeat took longer than "00:00:01" at "06/01/2019 00:32:48 +00:00".
  376. [00:06:03] Current: 79120, peak: 79120, connected: 0, disconnected: 0, rate: 0/s
  377. [00:06:04] Current: 79133, peak: 79133, connected: 13, disconnected: 0, rate: 13/s
  378. [00:06:05] Current: 79258, peak: 79258, connected: 125, disconnected: 0, rate: 125/s
  379. [00:06:06] Current: 79405, peak: 79405, connected: 147, disconnected: 0, rate: 147/s
  380. [00:06:07] Current: 79782, peak: 79782, connected: 377, disconnected: 0, rate: 377/s
  381. [00:06:08] Current: 79811, peak: 79811, connected: 29, disconnected: 0, rate: 29/s
  382. [00:06:10] Current: 79932, peak: 79932, connected: 121, disconnected: 0, rate: 121/s
  383. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  384. Heartbeat took longer than "00:00:01" at "06/01/2019 00:32:56 +00:00".
  385. [00:06:11] Current: 80028, peak: 80028, connected: 96, disconnected: 0, rate: 96/s
  386. [00:06:12] Current: 80286, peak: 80286, connected: 258, disconnected: 0, rate: 258/s
  387. [00:06:13] Current: 80681, peak: 80681, connected: 395, disconnected: 0, rate: 395/s
  388. [00:06:14] Current: 81044, peak: 81044, connected: 363, disconnected: 0, rate: 363/s
  389. [00:06:16] Current: 81078, peak: 81078, connected: 34, disconnected: 0, rate: 34/s
  390. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  391. Heartbeat took longer than "00:00:01" at "06/01/2019 00:33:02 +00:00".
  392. [00:06:17] Current: 81084, peak: 81084, connected: 6, disconnected: 0, rate: 6/s
  393. [00:06:18] Current: 81126, peak: 81126, connected: 42, disconnected: 0, rate: 42/s
  394. [00:06:19] Current: 81126, peak: 81126, connected: 0, disconnected: 0, rate: 0/s
  395. [00:06:21] Current: 81126, peak: 81126, connected: 0, disconnected: 0, rate: 0/s
  396. [00:06:22] Current: 81126, peak: 81126, connected: 0, disconnected: 0, rate: 0/s
  397. [00:06:23] Current: 81144, peak: 81144, connected: 18, disconnected: 0, rate: 18/s
  398. [00:06:24] Current: 81144, peak: 81144, connected: 0, disconnected: 0, rate: 0/s
  399. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  400. Heartbeat took longer than "00:00:01" at "06/01/2019 00:33:10 +00:00".
  401. [00:06:25] Current: 81184, peak: 81184, connected: 40, disconnected: 0, rate: 40/s
  402. [00:06:26] Current: 81184, peak: 81184, connected: 0, disconnected: 0, rate: 0/s
  403. [00:06:28] Current: 81226, peak: 81226, connected: 42, disconnected: 0, rate: 42/s
  404. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  405. Heartbeat took longer than "00:00:01" at "06/01/2019 00:33:14 +00:00".
  406. [00:06:29] Current: 81244, peak: 81244, connected: 18, disconnected: 0, rate: 18/s
  407. [00:06:30] Current: 81512, peak: 81512, connected: 268, disconnected: 0, rate: 268/s
  408. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  409. Heartbeat took longer than "00:00:01" at "06/01/2019 00:33:17 +00:00".
  410. [00:06:31] Current: 81513, peak: 81513, connected: 1, disconnected: 0, rate: 1/s
  411. [00:06:32] Current: 81532, peak: 81532, connected: 19, disconnected: 0, rate: 19/s
  412. [00:06:33] Current: 81572, peak: 81572, connected: 40, disconnected: 0, rate: 40/s
  413. [00:06:34] Current: 81593, peak: 81593, connected: 21, disconnected: 0, rate: 21/s
  414. [00:06:36] Current: 81613, peak: 81613, connected: 20, disconnected: 0, rate: 20/s
  415. [00:06:37] Current: 81613, peak: 81613, connected: 0, disconnected: 0, rate: 0/s
  416. [00:06:38] Current: 81623, peak: 81623, connected: 10, disconnected: 0, rate: 10/s
  417. [00:06:39] Current: 81694, peak: 81694, connected: 71, disconnected: 0, rate: 71/s
  418. [00:06:40] Current: 81723, peak: 81723, connected: 29, disconnected: 0, rate: 29/s
  419. [00:06:42] Current: 81723, peak: 81723, connected: 0, disconnected: 0, rate: 0/s
  420. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  421. Heartbeat took longer than "00:00:01" at "06/01/2019 00:33:28 +00:00".
  422. [00:06:43] Current: 81813, peak: 81813, connected: 90, disconnected: 0, rate: 90/s
  423. [00:06:44] Current: 82152, peak: 82152, connected: 339, disconnected: 0, rate: 339/s
  424. [00:06:45] Current: 82431, peak: 82431, connected: 279, disconnected: 0, rate: 279/s
  425. [00:06:46] Current: 82872, peak: 82872, connected: 441, disconnected: 0, rate: 441/s
  426. [00:06:48] Current: 82900, peak: 82900, connected: 28, disconnected: 0, rate: 28/s
  427. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  428. Heartbeat took longer than "00:00:01" at "06/01/2019 00:33:34 +00:00".
  429. [00:06:49] Current: 82921, peak: 82921, connected: 21, disconnected: 0, rate: 21/s
  430. [00:06:50] Current: 82936, peak: 82936, connected: 15, disconnected: 0, rate: 15/s
  431. [00:06:51] Current: 82972, peak: 82972, connected: 36, disconnected: 0, rate: 36/s
  432. [00:06:52] Current: 82972, peak: 82972, connected: 0, disconnected: 0, rate: 0/s
  433. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  434. Heartbeat took longer than "00:00:01" at "06/01/2019 00:33:38 +00:00".
  435. [00:06:53] Current: 82972, peak: 82972, connected: 0, disconnected: 0, rate: 0/s
  436. [00:06:54] Current: 82974, peak: 82974, connected: 2, disconnected: 0, rate: 2/s
  437. [00:06:56] Current: 82986, peak: 82986, connected: 12, disconnected: 0, rate: 12/s
  438. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  439. Heartbeat took longer than "00:00:01" at "06/01/2019 00:33:43 +00:00".
  440. [00:06:57] Current: 82986, peak: 82986, connected: 0, disconnected: 0, rate: 0/s
  441. [00:06:58] Current: 83023, peak: 83023, connected: 37, disconnected: 0, rate: 37/s
  442. [00:06:59] Current: 83323, peak: 83323, connected: 300, disconnected: 0, rate: 300/s
  443. [00:07:01] Current: 83440, peak: 83440, connected: 117, disconnected: 0, rate: 117/s
  444. [00:07:02] Current: 83508, peak: 83508, connected: 68, disconnected: 0, rate: 68/s
  445. [00:07:03] Current: 83519, peak: 83519, connected: 11, disconnected: 0, rate: 11/s
  446. [00:07:05] Current: 83519, peak: 83519, connected: 0, disconnected: 0, rate: 0/s
  447. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  448. Heartbeat took longer than "00:00:01" at "06/01/2019 00:33:51 +00:00".
  449. [00:07:06] Current: 83532, peak: 83532, connected: 13, disconnected: 0, rate: 13/s
  450. [00:07:07] Current: 83554, peak: 83554, connected: 22, disconnected: 0, rate: 22/s
  451. [00:07:08] Current: 83769, peak: 83769, connected: 215, disconnected: 0, rate: 215/s
  452. [00:07:09] Current: 83786, peak: 83786, connected: 17, disconnected: 0, rate: 17/s
  453. [00:07:11] Current: 83787, peak: 83787, connected: 1, disconnected: 0, rate: 1/s
  454. [00:07:12] Current: 83802, peak: 83802, connected: 15, disconnected: 0, rate: 15/s
  455. [00:07:13] Current: 83840, peak: 83840, connected: 38, disconnected: 0, rate: 38/s
  456. [00:07:14] Current: 84060, peak: 84060, connected: 220, disconnected: 0, rate: 220/s
  457. [00:07:16] Current: 84305, peak: 84305, connected: 245, disconnected: 0, rate: 245/s
  458. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  459. Heartbeat took longer than "00:00:01" at "06/01/2019 00:34:02 +00:00".
  460. [00:07:17] Current: 84349, peak: 84349, connected: 44, disconnected: 0, rate: 44/s
  461. [00:07:18] Current: 84405, peak: 84405, connected: 56, disconnected: 0, rate: 56/s
  462. [00:07:20] Current: 84405, peak: 84405, connected: 0, disconnected: 0, rate: 0/s
  463. [00:07:21] Current: 84405, peak: 84405, connected: 0, disconnected: 0, rate: 0/s
  464. [00:07:22] Current: 84406, peak: 84406, connected: 1, disconnected: 0, rate: 1/s
  465. [00:07:24] Current: 84550, peak: 84550, connected: 144, disconnected: 0, rate: 144/s
  466. [00:07:26] Current: 84556, peak: 84556, connected: 6, disconnected: 0, rate: 6/s
  467. [00:07:27] Current: 84578, peak: 84578, connected: 22, disconnected: 0, rate: 22/s
  468. [00:07:28] Current: 84624, peak: 84624, connected: 46, disconnected: 0, rate: 46/s
  469. [00:07:29] Current: 84646, peak: 84646, connected: 22, disconnected: 0, rate: 22/s
  470. [00:07:30] Current: 84747, peak: 84747, connected: 101, disconnected: 0, rate: 101/s
  471. [00:07:31] Current: 85099, peak: 85099, connected: 352, disconnected: 0, rate: 352/s
  472. [00:07:33] Current: 85255, peak: 85255, connected: 156, disconnected: 0, rate: 156/s
  473. [00:07:35] Current: 85255, peak: 85255, connected: 0, disconnected: 0, rate: 0/s
  474. [00:07:36] Current: 85255, peak: 85255, connected: 0, disconnected: 0, rate: 0/s
  475. [00:07:37] Current: 85309, peak: 85309, connected: 54, disconnected: 0, rate: 54/s
  476. [00:07:38] Current: 85309, peak: 85309, connected: 0, disconnected: 0, rate: 0/s
  477. [00:07:40] Current: 85309, peak: 85309, connected: 0, disconnected: 0, rate: 0/s
  478. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  479. Heartbeat took longer than "00:00:01" at "06/01/2019 00:34:26 +00:00".
  480. [00:07:43] Current: 85340, peak: 85340, connected: 31, disconnected: 0, rate: 31/s
  481. [00:07:44] Current: 85340, peak: 85340, connected: 0, disconnected: 0, rate: 0/s
  482. [00:07:46] Current: 85340, peak: 85340, connected: 0, disconnected: 0, rate: 0/s
  483. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  484. Heartbeat took longer than "00:00:01" at "06/01/2019 00:34:33 +00:00".
  485. [00:07:48] Current: 85340, peak: 85340, connected: 0, disconnected: 0, rate: 0/s
  486. [00:07:49] Current: 85340, peak: 85340, connected: 0, disconnected: 0, rate: 0/s
  487. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  488. Heartbeat took longer than "00:00:01" at "06/01/2019 00:34:35 +00:00".
  489. [00:07:51] Current: 85355, peak: 85355, connected: 15, disconnected: 0, rate: 15/s
  490. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  491. Heartbeat took longer than "00:00:01" at "06/01/2019 00:34:37 +00:00".
  492. [00:07:52] Current: 85355, peak: 85355, connected: 0, disconnected: 0, rate: 0/s
  493. [00:07:53] Current: 85355, peak: 85355, connected: 0, disconnected: 0, rate: 0/s
  494. [00:07:55] Current: 85355, peak: 85355, connected: 0, disconnected: 0, rate: 0/s
  495. [00:07:56] Current: 85355, peak: 85355, connected: 0, disconnected: 0, rate: 0/s
  496. [00:07:57] Current: 85355, peak: 85355, connected: 0, disconnected: 0, rate: 0/s
  497. [00:07:59] Current: 85355, peak: 85355, connected: 0, disconnected: 0, rate: 0/s
  498. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  499. Heartbeat took longer than "00:00:01" at "06/01/2019 00:34:45 +00:00".
  500. [00:08:05] Current: 85409, peak: 85409, connected: 54, disconnected: 0, rate: 54/s
  501. [00:08:06] Current: 85409, peak: 85409, connected: 0, disconnected: 0, rate: 0/s
  502. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  503. Heartbeat took longer than "00:00:01" at "06/01/2019 00:34:53 +00:00".
  504. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  505. Heartbeat took longer than "00:00:01" at "06/01/2019 00:34:53 +00:00".
  506. [00:08:09] Current: 85409, peak: 85409, connected: 0, disconnected: 0, rate: 0/s
  507. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  508. Heartbeat took longer than "00:00:01" at "06/01/2019 00:35:03 +00:00".
  509. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  510. Heartbeat took longer than "00:00:01" at "06/01/2019 00:35:05 +00:00".
  511. [00:08:19] Current: 85440, peak: 85440, connected: 31, disconnected: 0, rate: 31/s
  512. [00:08:20] Current: 85440, peak: 85440, connected: 0, disconnected: 0, rate: 0/s
  513. [00:08:21] Current: 85440, peak: 85440, connected: 0, disconnected: 0, rate: 0/s
  514. [00:08:22] Current: 85440, peak: 85440, connected: 0, disconnected: 0, rate: 0/s
  515. [00:08:23] Current: 85440, peak: 85440, connected: 0, disconnected: 0, rate: 0/s
  516. [00:08:24] Current: 85440, peak: 85440, connected: 0, disconnected: 0, rate: 0/s
  517. [00:08:25] Current: 85440, peak: 85440, connected: 0, disconnected: 0, rate: 0/s
  518. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  519. Heartbeat took longer than "00:00:01" at "06/01/2019 00:35:11 +00:00".
  520. [00:08:26] Current: 85439, peak: 85440, connected: 0, disconnected: 1, rate: -1/s
  521. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  522. Heartbeat took longer than "00:00:01" at "06/01/2019 00:35:13 +00:00".
  523. [00:08:27] Current: 85428, peak: 85440, connected: 0, disconnected: 11, rate: -11/s
  524. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  525. Heartbeat took longer than "00:00:01" at "06/01/2019 00:35:14 +00:00".
  526. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  527. Heartbeat took longer than "00:00:01" at "06/01/2019 00:35:14 +00:00".
  528. [00:08:28] Current: 85374, peak: 85440, connected: 0, disconnected: 54, rate: -54/s
  529. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  530. Heartbeat took longer than "00:00:01" at "06/01/2019 00:35:15 +00:00".
  531. [00:08:29] Current: 85374, peak: 85440, connected: 0, disconnected: 0, rate: 0/s
  532. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  533. Heartbeat took longer than "00:00:01" at "06/01/2019 00:35:16 +00:00".
  534. [00:08:30] Current: 85343, peak: 85440, connected: 0, disconnected: 31, rate: -31/s
  535. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  536. Heartbeat took longer than "00:00:01" at "06/01/2019 00:35:19 +00:00".
  537. [00:08:33] Current: 85343, peak: 85440, connected: 0, disconnected: 0, rate: 0/s
  538. [00:08:34] Current: 85343, peak: 85440, connected: 0, disconnected: 0, rate: 0/s
  539. [00:08:35] Current: 85343, peak: 85440, connected: 0, disconnected: 0, rate: 0/s
  540. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  541. Heartbeat took longer than "00:00:01" at "06/01/2019 00:35:22 +00:00".
  542. [00:08:36] Current: 85343, peak: 85440, connected: 0, disconnected: 0, rate: 0/s
  543. [00:08:37] Current: 85343, peak: 85440, connected: 0, disconnected: 0, rate: 0/s
  544. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  545. Heartbeat took longer than "00:00:01" at "06/01/2019 00:35:24 +00:00".
  546. [00:08:38] Current: 85428, peak: 85440, connected: 85, disconnected: 0, rate: 85/s
  547. [00:08:39] Current: 85428, peak: 85440, connected: 0, disconnected: 0, rate: 0/s
  548. [00:08:40] Current: 85428, peak: 85440, connected: 0, disconnected: 0, rate: 0/s
  549. [00:08:41] Current: 85428, peak: 85440, connected: 0, disconnected: 0, rate: 0/s
  550. [00:08:42] Current: 85443, peak: 85443, connected: 15, disconnected: 0, rate: 15/s
  551. [00:08:43] Current: 85443, peak: 85443, connected: 0, disconnected: 0, rate: 0/s
  552. [00:08:44] Current: 85443, peak: 85443, connected: 0, disconnected: 0, rate: 0/s
  553. [00:08:45] Current: 85443, peak: 85443, connected: 0, disconnected: 0, rate: 0/s
  554. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  555. Heartbeat took longer than "00:00:01" at "06/01/2019 00:35:33 +00:00".
  556. [00:08:47] Current: 85530, peak: 85530, connected: 87, disconnected: 0, rate: 87/s
  557. [00:08:48] Current: 85543, peak: 85543, connected: 13, disconnected: 0, rate: 13/s
  558. [00:08:49] Current: 85631, peak: 85631, connected: 88, disconnected: 0, rate: 88/s
  559. [00:08:50] Current: 85631, peak: 85631, connected: 0, disconnected: 0, rate: 0/s
  560. [00:08:51] Current: 85647, peak: 85647, connected: 16, disconnected: 0, rate: 16/s
  561. [00:08:52] Current: 85679, peak: 85679, connected: 32, disconnected: 0, rate: 32/s
  562. [00:08:53] Current: 85732, peak: 85732, connected: 53, disconnected: 0, rate: 53/s
  563. [00:08:54] Current: 85732, peak: 85732, connected: 0, disconnected: 0, rate: 0/s
  564. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  565. Heartbeat took longer than "00:00:01" at "06/01/2019 00:35:41 +00:00".
  566. [00:08:55] Current: 85743, peak: 85743, connected: 11, disconnected: 0, rate: 11/s
  567. [00:08:56] Current: 85748, peak: 85748, connected: 5, disconnected: 0, rate: 5/s
  568. [00:08:58] Current: 85758, peak: 85758, connected: 10, disconnected: 0, rate: 10/s
  569. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  570. Heartbeat took longer than "00:00:01" at "06/01/2019 00:35:44 +00:00".
  571. [00:08:59] Current: 85777, peak: 85777, connected: 19, disconnected: 0, rate: 19/s
  572. [00:09:00] Current: 85810, peak: 85810, connected: 33, disconnected: 0, rate: 33/s
  573. [00:09:01] Current: 85844, peak: 85844, connected: 34, disconnected: 0, rate: 34/s
  574. [00:09:02] Current: 85998, peak: 85998, connected: 154, disconnected: 0, rate: 154/s
  575. [00:09:03] Current: 86470, peak: 86470, connected: 472, disconnected: 0, rate: 472/s
  576. [00:09:04] Current: 86657, peak: 86657, connected: 187, disconnected: 0, rate: 187/s
  577. [00:09:05] Current: 86715, peak: 86715, connected: 58, disconnected: 0, rate: 58/s
  578. [00:09:06] Current: 86751, peak: 86751, connected: 36, disconnected: 0, rate: 36/s
  579. [00:09:08] Current: 86763, peak: 86763, connected: 12, disconnected: 0, rate: 12/s
  580. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  581. Heartbeat took longer than "00:00:01" at "06/01/2019 00:35:54 +00:00".
  582. [00:09:09] Current: 86763, peak: 86763, connected: 0, disconnected: 0, rate: 0/s
  583. [00:09:10] Current: 86804, peak: 86804, connected: 41, disconnected: 0, rate: 41/s
  584. [00:09:11] Current: 86807, peak: 86807, connected: 3, disconnected: 0, rate: 3/s
  585. [00:09:12] Current: 86807, peak: 86807, connected: 0, disconnected: 0, rate: 0/s
  586. [00:09:13] Current: 86815, peak: 86815, connected: 8, disconnected: 0, rate: 8/s
  587. [00:09:14] Current: 86815, peak: 86815, connected: 0, disconnected: 0, rate: 0/s
  588. [00:09:17] Current: 86852, peak: 86852, connected: 37, disconnected: 0, rate: 37/s
  589. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  590. Heartbeat took longer than "00:00:01" at "06/01/2019 00:36:03 +00:00".
  591. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  592. Heartbeat took longer than "00:00:01" at "06/01/2019 00:36:04 +00:00".
  593. [00:09:18] Current: 86854, peak: 86854, connected: 2, disconnected: 0, rate: 2/s
  594. [00:09:19] Current: 86864, peak: 86864, connected: 10, disconnected: 0, rate: 10/s
  595. [00:09:20] Current: 86900, peak: 86900, connected: 36, disconnected: 0, rate: 36/s
  596. [00:09:21] Current: 86910, peak: 86910, connected: 10, disconnected: 0, rate: 10/s
  597. [00:09:23] Current: 86910, peak: 86910, connected: 0, disconnected: 0, rate: 0/s
  598. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  599. Heartbeat took longer than "00:00:01" at "06/01/2019 00:36:09 +00:00".
  600. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  601. Heartbeat took longer than "00:00:01" at "06/01/2019 00:36:10 +00:00".
  602. [00:09:24] Current: 86910, peak: 86910, connected: 0, disconnected: 0, rate: 0/s
  603. [00:09:25] Current: 86950, peak: 86950, connected: 40, disconnected: 0, rate: 40/s
  604. [00:09:26] Current: 86952, peak: 86952, connected: 2, disconnected: 0, rate: 2/s
  605. [00:09:27] Current: 86956, peak: 86956, connected: 4, disconnected: 0, rate: 4/s
  606. [00:09:28] Current: 86956, peak: 86956, connected: 0, disconnected: 0, rate: 0/s
  607. [00:09:29] Current: 86994, peak: 86994, connected: 38, disconnected: 0, rate: 38/s
  608. [00:09:31] Current: 86994, peak: 86994, connected: 0, disconnected: 0, rate: 0/s
  609. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  610. Heartbeat took longer than "00:00:01" at "06/01/2019 00:36:17 +00:00".
  611. [00:09:32] Current: 86995, peak: 86995, connected: 1, disconnected: 0, rate: 1/s
  612. [00:09:33] Current: 87005, peak: 87005, connected: 10, disconnected: 0, rate: 10/s
  613. [00:09:34] Current: 87197, peak: 87197, connected: 192, disconnected: 0, rate: 192/s
  614. [00:09:35] Current: 87461, peak: 87461, connected: 264, disconnected: 0, rate: 264/s
  615. [00:09:36] Current: 87524, peak: 87524, connected: 63, disconnected: 0, rate: 63/s
  616. [00:09:37] Current: 87567, peak: 87567, connected: 43, disconnected: 0, rate: 43/s
  617. [00:09:38] Current: 87786, peak: 87786, connected: 219, disconnected: 0, rate: 219/s
  618. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  619. Heartbeat took longer than "00:00:01" at "06/01/2019 00:36:26 +00:00".
  620. [00:09:40] Current: 87859, peak: 87859, connected: 73, disconnected: 0, rate: 73/s
  621. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  622. Heartbeat took longer than "00:00:01" at "06/01/2019 00:36:26 +00:00".
  623. [00:09:41] Current: 87900, peak: 87900, connected: 41, disconnected: 0, rate: 41/s
  624. [00:09:42] Current: 87930, peak: 87930, connected: 30, disconnected: 0, rate: 30/s
  625. [00:09:43] Current: 87951, peak: 87951, connected: 21, disconnected: 0, rate: 21/s
  626. [00:09:44] Current: 87953, peak: 87953, connected: 2, disconnected: 0, rate: 2/s
  627. [00:09:45] Current: 87953, peak: 87953, connected: 0, disconnected: 0, rate: 0/s
  628. [00:09:46] Current: 87960, peak: 87960, connected: 7, disconnected: 0, rate: 7/s
  629. [00:09:48] Current: 87961, peak: 87961, connected: 1, disconnected: 0, rate: 1/s
  630. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  631. Heartbeat took longer than "00:00:01" at "06/01/2019 00:36:34 +00:00".
  632. [00:09:49] Current: 87961, peak: 87961, connected: 0, disconnected: 0, rate: 0/s
  633. [00:09:50] Current: 88000, peak: 88000, connected: 39, disconnected: 0, rate: 39/s
  634. [00:09:51] Current: 88148, peak: 88148, connected: 148, disconnected: 0, rate: 148/s
  635. [00:09:52] Current: 88172, peak: 88172, connected: 24, disconnected: 0, rate: 24/s
  636. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  637. Heartbeat took longer than "00:00:01" at "06/01/2019 00:36:39 +00:00".
  638. [00:09:53] Current: 88201, peak: 88201, connected: 29, disconnected: 0, rate: 29/s
  639. [00:09:55] Current: 88209, peak: 88209, connected: 8, disconnected: 0, rate: 8/s
  640. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  641. Heartbeat took longer than "00:00:01" at "06/01/2019 00:36:41 +00:00".
  642. [00:09:56] Current: 88210, peak: 88210, connected: 1, disconnected: 0, rate: 1/s
  643. [00:09:57] Current: 88210, peak: 88210, connected: 0, disconnected: 0, rate: 0/s
  644. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  645. Heartbeat took longer than "00:00:01" at "06/01/2019 00:36:44 +00:00".
  646. [00:09:58] Current: 88237, peak: 88237, connected: 27, disconnected: 0, rate: 27/s
  647. [00:09:59] Current: 88243, peak: 88243, connected: 6, disconnected: 0, rate: 6/s
  648. [00:10:01] Current: 88243, peak: 88243, connected: 0, disconnected: 0, rate: 0/s
  649. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  650. Heartbeat took longer than "00:00:01" at "06/01/2019 00:36:47 +00:00".
  651. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  652. Heartbeat took longer than "00:00:01" at "06/01/2019 00:36:47 +00:00".
  653. [00:10:02] Current: 88243, peak: 88243, connected: 0, disconnected: 0, rate: 0/s
  654. [00:10:03] Current: 88251, peak: 88251, connected: 8, disconnected: 0, rate: 8/s
  655. [00:10:04] Current: 88252, peak: 88252, connected: 1, disconnected: 0, rate: 1/s
  656. [00:10:05] Current: 88301, peak: 88301, connected: 49, disconnected: 0, rate: 49/s
  657. [00:10:06] Current: 88311, peak: 88311, connected: 10, disconnected: 0, rate: 10/s
  658. [00:10:07] Current: 88317, peak: 88317, connected: 6, disconnected: 0, rate: 6/s
  659. [00:10:08] Current: 88343, peak: 88343, connected: 26, disconnected: 0, rate: 26/s
  660. [00:10:09] Current: 88354, peak: 88354, connected: 11, disconnected: 0, rate: 11/s
  661. [00:10:10] Current: 88411, peak: 88411, connected: 57, disconnected: 0, rate: 57/s
  662. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  663. Heartbeat took longer than "00:00:01" at "06/01/2019 00:36:59 +00:00".
  664. [00:10:13] Current: 88488, peak: 88488, connected: 77, disconnected: 0, rate: 77/s
  665. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  666. Heartbeat took longer than "00:00:01" at "06/01/2019 00:36:59 +00:00".
  667. [00:10:14] Current: 88497, peak: 88497, connected: 9, disconnected: 0, rate: 9/s
  668. [00:10:15] Current: 88519, peak: 88519, connected: 22, disconnected: 0, rate: 22/s
  669. [00:10:16] Current: 88519, peak: 88519, connected: 0, disconnected: 0, rate: 0/s
  670. [00:10:17] Current: 88551, peak: 88551, connected: 32, disconnected: 0, rate: 32/s
  671. [00:10:18] Current: 88561, peak: 88561, connected: 10, disconnected: 0, rate: 10/s
  672. [00:10:19] Current: 88588, peak: 88588, connected: 27, disconnected: 0, rate: 27/s
  673. [00:10:20] Current: 88615, peak: 88615, connected: 27, disconnected: 0, rate: 27/s
  674. [00:10:21] Current: 88619, peak: 88619, connected: 4, disconnected: 0, rate: 4/s
  675. [00:10:23] Current: 88661, peak: 88661, connected: 42, disconnected: 0, rate: 42/s
  676. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  677. Heartbeat took longer than "00:00:01" at "06/01/2019 00:37:09 +00:00".
  678. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  679. Heartbeat took longer than "00:00:01" at "06/01/2019 00:37:10 +00:00".
  680. [00:10:24] Current: 88661, peak: 88661, connected: 0, disconnected: 0, rate: 0/s
  681. [00:10:25] Current: 88688, peak: 88688, connected: 27, disconnected: 0, rate: 27/s
  682. [00:10:26] Current: 88719, peak: 88719, connected: 31, disconnected: 0, rate: 31/s
  683. [00:10:27] Current: 88719, peak: 88719, connected: 0, disconnected: 0, rate: 0/s
  684. [00:10:28] Current: 88719, peak: 88719, connected: 0, disconnected: 0, rate: 0/s
  685. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  686. Heartbeat took longer than "00:00:01" at "06/01/2019 00:37:16 +00:00".
  687. [00:10:30] Current: 88719, peak: 88719, connected: 0, disconnected: 0, rate: 0/s
  688. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  689. Heartbeat took longer than "00:00:01" at "06/01/2019 00:37:17 +00:00".
  690. [00:10:31] Current: 88719, peak: 88719, connected: 0, disconnected: 0, rate: 0/s
  691. [00:10:32] Current: 88761, peak: 88761, connected: 42, disconnected: 0, rate: 42/s
  692. [00:10:33] Current: 88761, peak: 88761, connected: 0, disconnected: 0, rate: 0/s
  693. [00:10:34] Current: 88761, peak: 88761, connected: 0, disconnected: 0, rate: 0/s
  694. [00:10:35] Current: 88761, peak: 88761, connected: 0, disconnected: 0, rate: 0/s
  695. [00:10:37] Current: 88761, peak: 88761, connected: 0, disconnected: 0, rate: 0/s
  696. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  697. Heartbeat took longer than "00:00:01" at "06/01/2019 00:37:23 +00:00".
  698. [00:10:38] Current: 88788, peak: 88788, connected: 27, disconnected: 0, rate: 27/s
  699. [00:10:39] Current: 88788, peak: 88788, connected: 0, disconnected: 0, rate: 0/s
  700. [00:10:40] Current: 88819, peak: 88819, connected: 31, disconnected: 0, rate: 31/s
  701. [00:10:41] Current: 88819, peak: 88819, connected: 0, disconnected: 0, rate: 0/s
  702. [00:10:42] Current: 88819, peak: 88819, connected: 0, disconnected: 0, rate: 0/s
  703. [00:10:43] Current: 88861, peak: 88861, connected: 42, disconnected: 0, rate: 42/s
  704. [00:10:44] Current: 88861, peak: 88861, connected: 0, disconnected: 0, rate: 0/s
  705. [00:10:45] Current: 88889, peak: 88889, connected: 28, disconnected: 0, rate: 28/s
  706. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  707. Heartbeat took longer than "00:00:01" at "06/01/2019 00:37:34 +00:00".
  708. [00:10:47] Current: 88962, peak: 88962, connected: 73, disconnected: 0, rate: 73/s
  709. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  710. Heartbeat took longer than "00:00:01" at "06/01/2019 00:37:34 +00:00".
  711. [00:10:48] Current: 88976, peak: 88976, connected: 14, disconnected: 0, rate: 14/s
  712. [00:10:49] Current: 89020, peak: 89020, connected: 44, disconnected: 0, rate: 44/s
  713. [00:10:50] Current: 89022, peak: 89022, connected: 2, disconnected: 0, rate: 2/s
  714. [00:10:52] Current: 89064, peak: 89064, connected: 42, disconnected: 0, rate: 42/s
  715. [00:10:53] Current: 89120, peak: 89120, connected: 56, disconnected: 0, rate: 56/s
  716. [00:10:54] Current: 89340, peak: 89340, connected: 220, disconnected: 0, rate: 220/s
  717. [00:10:55] Current: 89641, peak: 89641, connected: 301, disconnected: 0, rate: 301/s
  718. [00:10:56] Current: 89643, peak: 89643, connected: 2, disconnected: 0, rate: 2/s
  719. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  720. Heartbeat took longer than "00:00:01" at "06/01/2019 00:37:42 +00:00".
  721. [00:10:57] Current: 89662, peak: 89662, connected: 19, disconnected: 0, rate: 19/s
  722. [00:10:58] Current: 89676, peak: 89676, connected: 14, disconnected: 0, rate: 14/s
  723. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  724. Heartbeat took longer than "00:00:01" at "06/01/2019 00:37:47 +00:00".
  725. [00:11:01] Current: 89692, peak: 89692, connected: 16, disconnected: 0, rate: 16/s
  726. [00:11:02] Current: 89707, peak: 89707, connected: 15, disconnected: 0, rate: 15/s
  727. [00:11:03] Current: 89742, peak: 89742, connected: 35, disconnected: 0, rate: 35/s
  728. [00:11:04] Current: 89750, peak: 89750, connected: 8, disconnected: 0, rate: 8/s
  729. [00:11:05] Current: 89761, peak: 89761, connected: 11, disconnected: 0, rate: 11/s
  730. [00:11:07] Current: 89761, peak: 89761, connected: 0, disconnected: 0, rate: 0/s
  731. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  732. Heartbeat took longer than "00:00:01" at "06/01/2019 00:37:53 +00:00".
  733. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  734. Heartbeat took longer than "00:00:01" at "06/01/2019 00:37:53 +00:00".
  735. [00:11:08] Current: 89769, peak: 89769, connected: 8, disconnected: 0, rate: 8/s
  736. [00:11:09] Current: 89792, peak: 89792, connected: 23, disconnected: 0, rate: 23/s
  737. [00:11:10] Current: 89792, peak: 89792, connected: 0, disconnected: 0, rate: 0/s
  738. [00:11:11] Current: 89890, peak: 89890, connected: 98, disconnected: 0, rate: 98/s
  739. [00:11:12] Current: 90330, peak: 90330, connected: 440, disconnected: 0, rate: 440/s
  740. [00:11:13] Current: 90485, peak: 90485, connected: 155, disconnected: 0, rate: 155/s
  741. [00:11:14] Current: 90490, peak: 90490, connected: 5, disconnected: 0, rate: 5/s
  742. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  743. Heartbeat took longer than "00:00:01" at "06/01/2019 00:38:01 +00:00".
  744. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  745. Heartbeat took longer than "00:00:01" at "06/01/2019 00:38:01 +00:00".
  746. [00:11:15] Current: 90498, peak: 90498, connected: 8, disconnected: 0, rate: 8/s
  747. [00:11:16] Current: 90536, peak: 90536, connected: 38, disconnected: 0, rate: 38/s
  748. [00:11:17] Current: 90555, peak: 90555, connected: 19, disconnected: 0, rate: 19/s
  749. [00:11:18] Current: 90560, peak: 90560, connected: 5, disconnected: 0, rate: 5/s
  750. [00:11:19] Current: 90569, peak: 90569, connected: 9, disconnected: 0, rate: 9/s
  751. [00:11:20] Current: 90572, peak: 90572, connected: 3, disconnected: 0, rate: 3/s
  752. [00:11:21] Current: 90593, peak: 90593, connected: 21, disconnected: 0, rate: 21/s
  753. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  754. Heartbeat took longer than "00:00:01" at "06/01/2019 00:38:10 +00:00".
  755. [00:11:24] Current: 90640, peak: 90640, connected: 47, disconnected: 0, rate: 47/s
  756. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  757. Heartbeat took longer than "00:00:01" at "06/01/2019 00:38:10 +00:00".
  758. [00:11:25] Current: 90673, peak: 90673, connected: 33, disconnected: 0, rate: 33/s
  759. [00:11:26] Current: 90693, peak: 90693, connected: 20, disconnected: 0, rate: 20/s
  760. [00:11:27] Current: 90740, peak: 90740, connected: 47, disconnected: 0, rate: 47/s
  761. [00:11:28] Current: 90740, peak: 90740, connected: 0, disconnected: 0, rate: 0/s
  762. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  763. Heartbeat took longer than "00:00:01" at "06/01/2019 00:38:15 +00:00".
  764. [00:11:29] Current: 90784, peak: 90784, connected: 44, disconnected: 0, rate: 44/s
  765. [00:11:31] Current: 90807, peak: 90807, connected: 23, disconnected: 0, rate: 23/s
  766. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  767. Heartbeat took longer than "00:00:01" at "06/01/2019 00:38:17 +00:00".
  768. [00:11:32] Current: 90807, peak: 90807, connected: 0, disconnected: 0, rate: 0/s
  769. [00:11:33] Current: 90840, peak: 90840, connected: 33, disconnected: 0, rate: 33/s
  770. [00:11:34] Current: 90840, peak: 90840, connected: 0, disconnected: 0, rate: 0/s
  771. [00:11:35] Current: 90840, peak: 90840, connected: 0, disconnected: 0, rate: 0/s
  772. [00:11:36] Current: 90840, peak: 90840, connected: 0, disconnected: 0, rate: 0/s
  773. [00:11:39] Current: 90850, peak: 90850, connected: 10, disconnected: 0, rate: 10/s
  774. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  775. Heartbeat took longer than "00:00:01" at "06/01/2019 00:38:25 +00:00".
  776. [00:11:40] Current: 90850, peak: 90850, connected: 0, disconnected: 0, rate: 0/s
  777. [00:11:41] Current: 90857, peak: 90857, connected: 7, disconnected: 0, rate: 7/s
  778. [00:11:42] Current: 90907, peak: 90907, connected: 50, disconnected: 0, rate: 50/s
  779. [00:11:43] Current: 90907, peak: 90907, connected: 0, disconnected: 0, rate: 0/s
  780. [00:11:44] Current: 90907, peak: 90907, connected: 0, disconnected: 0, rate: 0/s
  781. [00:11:46] Current: 90920, peak: 90920, connected: 13, disconnected: 0, rate: 13/s
  782. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  783. Heartbeat took longer than "00:00:01" at "06/01/2019 00:38:32 +00:00".
  784. [00:11:48] Current: 90940, peak: 90940, connected: 20, disconnected: 0, rate: 20/s
  785. [00:11:49] Current: 90940, peak: 90940, connected: 0, disconnected: 0, rate: 0/s
  786. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  787. Heartbeat took longer than "00:00:01" at "06/01/2019 00:38:35 +00:00".
  788. [00:11:50] Current: 90951, peak: 90951, connected: 11, disconnected: 0, rate: 11/s
  789. [00:11:51] Current: 90951, peak: 90951, connected: 0, disconnected: 0, rate: 0/s
  790. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  791. Heartbeat took longer than "00:00:01" at "06/01/2019 00:38:38 +00:00".
  792. [00:11:52] Current: 90951, peak: 90951, connected: 0, disconnected: 0, rate: 0/s
  793. [00:11:53] Current: 90951, peak: 90951, connected: 0, disconnected: 0, rate: 0/s
  794. [00:11:55] Current: 91009, peak: 91009, connected: 58, disconnected: 0, rate: 58/s
  795. [00:11:56] Current: 91009, peak: 91009, connected: 0, disconnected: 0, rate: 0/s
  796. [00:11:57] Current: 91009, peak: 91009, connected: 0, disconnected: 0, rate: 0/s
  797. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  798. Heartbeat took longer than "00:00:01" at "06/01/2019 00:38:44 +00:00".
  799. [00:11:58] Current: 91009, peak: 91009, connected: 0, disconnected: 0, rate: 0/s
  800. [00:12:00] Current: 91009, peak: 91009, connected: 0, disconnected: 0, rate: 0/s
  801. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  802. Heartbeat took longer than "00:00:01" at "06/01/2019 00:38:46 +00:00".
  803. [00:12:01] Current: 91038, peak: 91038, connected: 29, disconnected: 0, rate: 29/s
  804. [00:12:02] Current: 91040, peak: 91040, connected: 2, disconnected: 0, rate: 2/s
  805. [00:12:03] Current: 91040, peak: 91040, connected: 0, disconnected: 0, rate: 0/s
  806. [00:12:04] Current: 91041, peak: 91041, connected: 1, disconnected: 0, rate: 1/s
  807. [00:12:05] Current: 91051, peak: 91051, connected: 10, disconnected: 0, rate: 10/s
  808. [00:12:07] Current: 91051, peak: 91051, connected: 0, disconnected: 0, rate: 0/s
  809. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  810. Heartbeat took longer than "00:00:01" at "06/01/2019 00:38:53 +00:00".
  811. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  812. Heartbeat took longer than "00:00:01" at "06/01/2019 00:38:53 +00:00".
  813. [00:12:08] Current: 91051, peak: 91051, connected: 0, disconnected: 0, rate: 0/s
  814. [00:12:09] Current: 91070, peak: 91070, connected: 19, disconnected: 0, rate: 19/s
  815. [00:12:10] Current: 91110, peak: 91110, connected: 40, disconnected: 0, rate: 40/s
  816. [00:12:11] Current: 91110, peak: 91110, connected: 0, disconnected: 0, rate: 0/s
  817. [00:12:12] Current: 91110, peak: 91110, connected: 0, disconnected: 0, rate: 0/s
  818. [00:12:13] Current: 91140, peak: 91140, connected: 30, disconnected: 0, rate: 30/s
  819. [00:12:15] Current: 91140, peak: 91140, connected: 0, disconnected: 0, rate: 0/s
  820. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  821. Heartbeat took longer than "00:00:01" at "06/01/2019 00:39:01 +00:00".
  822. [00:12:16] Current: 91142, peak: 91142, connected: 2, disconnected: 0, rate: 2/s
  823. [00:12:17] Current: 91238, peak: 91238, connected: 96, disconnected: 0, rate: 96/s
  824. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  825. Heartbeat took longer than "00:00:01" at "06/01/2019 00:39:05 +00:00".
  826. [00:12:19] Current: 91238, peak: 91238, connected: 0, disconnected: 0, rate: 0/s
  827. [00:12:20] Current: 91238, peak: 91238, connected: 0, disconnected: 0, rate: 0/s
  828. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  829. Heartbeat took longer than "00:00:01" at "06/01/2019 00:39:06 +00:00".
  830. [00:12:21] Current: 91240, peak: 91240, connected: 2, disconnected: 0, rate: 2/s
  831. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  832. Heartbeat took longer than "00:00:01" at "06/01/2019 00:39:08 +00:00".
  833. [00:12:23] Current: 91240, peak: 91240, connected: 0, disconnected: 0, rate: 0/s
  834. [00:12:24] Current: 91240, peak: 91240, connected: 0, disconnected: 0, rate: 0/s
  835. [00:12:25] Current: 91247, peak: 91247, connected: 7, disconnected: 0, rate: 7/s
  836. [00:12:27] Current: 91248, peak: 91248, connected: 1, disconnected: 0, rate: 1/s
  837. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  838. Heartbeat took longer than "00:00:01" at "06/01/2019 00:39:13 +00:00".
  839. [00:12:28] Current: 91248, peak: 91248, connected: 0, disconnected: 0, rate: 0/s
  840. [00:12:29] Current: 91338, peak: 91338, connected: 90, disconnected: 0, rate: 90/s
  841. [00:12:30] Current: 91338, peak: 91338, connected: 0, disconnected: 0, rate: 0/s
  842. [00:12:31] Current: 91350, peak: 91350, connected: 12, disconnected: 0, rate: 12/s
  843. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  844. Heartbeat took longer than "00:00:01" at "06/01/2019 00:39:18 +00:00".
  845. [00:12:32] Current: 91393, peak: 91393, connected: 43, disconnected: 0, rate: 43/s
  846. [00:12:34] Current: 91441, peak: 91441, connected: 48, disconnected: 0, rate: 48/s
  847. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  848. Heartbeat took longer than "00:00:01" at "06/01/2019 00:39:20 +00:00".
  849. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  850. Heartbeat took longer than "00:00:01" at "06/01/2019 00:39:20 +00:00".
  851. [00:12:36] Current: 91441, peak: 91441, connected: 0, disconnected: 0, rate: 0/s
  852. [00:12:37] Current: 91441, peak: 91441, connected: 0, disconnected: 0, rate: 0/s
  853. [00:12:39] Current: 91450, peak: 91450, connected: 9, disconnected: 0, rate: 9/s
  854. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  855. Heartbeat took longer than "00:00:01" at "06/01/2019 00:39:25 +00:00".
  856. [00:12:40] Current: 91450, peak: 91450, connected: 0, disconnected: 0, rate: 0/s
  857. [00:12:41] Current: 91450, peak: 91450, connected: 0, disconnected: 0, rate: 0/s
  858. [00:12:42] Current: 91450, peak: 91450, connected: 0, disconnected: 0, rate: 0/s
  859. [00:12:44] Current: 91466, peak: 91466, connected: 16, disconnected: 0, rate: 16/s
  860. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  861. Heartbeat took longer than "00:00:01" at "06/01/2019 00:39:30 +00:00".
  862. [00:12:46] Current: 91466, peak: 91466, connected: 0, disconnected: 0, rate: 0/s
  863. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  864. Heartbeat took longer than "00:00:01" at "06/01/2019 00:39:32 +00:00".
  865. [00:12:48] Current: 91478, peak: 91478, connected: 12, disconnected: 0, rate: 12/s
  866. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  867. Heartbeat took longer than "00:00:01" at "06/01/2019 00:39:34 +00:00".
  868. [00:12:49] Current: 91478, peak: 91478, connected: 0, disconnected: 0, rate: 0/s
  869. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  870. Heartbeat took longer than "00:00:01" at "06/01/2019 00:39:35 +00:00".
  871. [00:12:51] Current: 91478, peak: 91478, connected: 0, disconnected: 0, rate: 0/s
  872. [00:12:52] Current: 91478, peak: 91478, connected: 0, disconnected: 0, rate: 0/s
  873. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  874. Heartbeat took longer than "00:00:01" at "06/01/2019 00:39:39 +00:00".
  875. [00:12:53] Current: 91478, peak: 91478, connected: 0, disconnected: 0, rate: 0/s
  876. [00:12:54] Current: 91478, peak: 91478, connected: 0, disconnected: 0, rate: 0/s
  877. [00:12:55] Current: 91478, peak: 91478, connected: 0, disconnected: 0, rate: 0/s
  878. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  879. Heartbeat took longer than "00:00:01" at "06/01/2019 00:39:42 +00:00".
  880. [00:12:56] Current: 91493, peak: 91493, connected: 15, disconnected: 0, rate: 15/s
  881. [00:12:58] Current: 91493, peak: 91493, connected: 0, disconnected: 0, rate: 0/s
  882. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  883. Heartbeat took longer than "00:00:01" at "06/01/2019 00:39:44 +00:00".
  884. [00:12:59] Current: 91541, peak: 91541, connected: 48, disconnected: 0, rate: 48/s
  885. [00:13:00] Current: 91541, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  886. [00:13:02] Current: 91541, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  887. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  888. Heartbeat took longer than "00:00:01" at "06/01/2019 00:39:48 +00:00".
  889. [00:13:03] Current: 91541, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  890. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  891. Heartbeat took longer than "00:00:01" at "06/01/2019 00:39:50 +00:00".
  892. [00:13:06] Current: 91541, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  893. [00:13:07] Current: 91541, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  894. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  895. Heartbeat took longer than "00:00:01" at "06/01/2019 00:39:53 +00:00".
  896. [00:13:11] Current: 91541, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  897. [00:13:12] Current: 91541, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  898. [00:13:13] Current: 91541, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  899. [00:13:14] Current: 91541, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  900. [00:13:15] Current: 91541, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  901. [00:13:16] Current: 91541, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  902. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  903. Heartbeat took longer than "00:00:01" at "06/01/2019 00:40:02 +00:00".
  904. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  905. Heartbeat took longer than "00:00:01" at "06/01/2019 00:40:02 +00:00".
  906. [00:13:17] Current: 91526, peak: 91541, connected: 0, disconnected: 15, rate: -15/s
  907. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  908. Heartbeat took longer than "00:00:01" at "06/01/2019 00:40:03 +00:00".
  909. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  910. Heartbeat took longer than "00:00:01" at "06/01/2019 00:40:03 +00:00".
  911. [00:13:21] Current: 91526, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  912. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  913. Heartbeat took longer than "00:00:01" at "06/01/2019 00:40:07 +00:00".
  914. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  915. Heartbeat took longer than "00:00:01" at "06/01/2019 00:40:09 +00:00".
  916. [00:13:25] Current: 91526, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  917. [00:13:26] Current: 91526, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  918. [00:13:30] Current: 91526, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  919. [00:13:31] Current: 91526, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  920. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  921. Heartbeat took longer than "00:00:01" at "06/01/2019 00:40:20 +00:00".
  922. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  923. Heartbeat took longer than "00:00:01" at "06/01/2019 00:40:22 +00:00".
  924. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  925. Heartbeat took longer than "00:00:01" at "06/01/2019 00:40:23 +00:00".
  926. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  927. Heartbeat took longer than "00:00:01" at "06/01/2019 00:40:24 +00:00".
  928. [00:13:37] Current: 91520, peak: 91541, connected: 0, disconnected: 6, rate: -6/s
  929. [00:13:39] Current: 91518, peak: 91541, connected: 0, disconnected: 2, rate: -2/s
  930. [00:13:40] Current: 91500, peak: 91541, connected: 0, disconnected: 18, rate: -18/s
  931. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  932. Heartbeat took longer than "00:00:01" at "06/01/2019 00:40:32 +00:00".
  933. [00:13:56] Current: 91477, peak: 91541, connected: 0, disconnected: 23, rate: -23/s
  934. [00:13:59] Current: 91477, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  935. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  936. Heartbeat took longer than "00:00:01" at "06/01/2019 00:40:45 +00:00".
  937. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  938. Heartbeat took longer than "00:00:01" at "06/01/2019 00:40:47 +00:00".
  939. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  940. Heartbeat took longer than "00:00:01" at "06/01/2019 00:40:51 +00:00".
  941. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  942. Heartbeat took longer than "00:00:01" at "06/01/2019 00:40:53 +00:00".
  943. [00:14:08] Current: 91331, peak: 91541, connected: 0, disconnected: 146, rate: -146/s
  944. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  945. Heartbeat took longer than "00:00:01" at "06/01/2019 00:40:54 +00:00".
  946. [00:14:09] Current: 90665, peak: 91541, connected: 0, disconnected: 666, rate: -666/s
  947. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  948. Heartbeat took longer than "00:00:01" at "06/01/2019 00:40:55 +00:00".
  949. [00:14:10] Current: 90517, peak: 91541, connected: 0, disconnected: 148, rate: -148/s
  950. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  951. Heartbeat took longer than "00:00:01" at "06/01/2019 00:40:57 +00:00".
  952. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  953. Heartbeat took longer than "00:00:01" at "06/01/2019 00:40:57 +00:00".
  954. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  955. Heartbeat took longer than "00:00:01" at "06/01/2019 00:41:03 +00:00".
  956. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  957. Heartbeat took longer than "00:00:01" at "06/01/2019 00:41:03 +00:00".
  958. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  959. Failed writing message. Aborting connection.
  960. System.InvalidOperationException: Writing is not allowed after writer was completed.
  961. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  962. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  963. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  964. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  965. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  966. Failed writing message. Aborting connection.
  967. System.InvalidOperationException: Writing is not allowed after writer was completed.
  968. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  969. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  970. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  971. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  972. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  973. Failed writing message. Aborting connection.
  974. System.InvalidOperationException: Writing is not allowed after writer was completed.
  975. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  976. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  977. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  978. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  979. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  980. Failed writing message. Aborting connection.
  981. System.InvalidOperationException: Writing is not allowed after writer was completed.
  982. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  983. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  984. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  985. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  986. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  987. Failed writing message. Aborting connection.
  988. System.InvalidOperationException: Writing is not allowed after writer was completed.
  989. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  990. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  991. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  992. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  993. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  994. Failed writing message. Aborting connection.
  995. System.InvalidOperationException: Writing is not allowed after writer was completed.
  996. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  997. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  998. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  999. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1000. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1001. Failed writing message. Aborting connection.
  1002. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1003. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1004. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1005. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1006. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1007. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1008. Failed writing message. Aborting connection.
  1009. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1010. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1011. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1012. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1013. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1014. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1015. Failed writing message. Aborting connection.
  1016. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1017. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1018. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1019. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1020. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1021. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1022. Failed writing message. Aborting connection.
  1023. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1024. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1025. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1026. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1027. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1028. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1029. Failed writing message. Aborting connection.
  1030. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1031. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1032. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1033. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1034. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1035. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1036. Failed writing message. Aborting connection.
  1037. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1038. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1039. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1040. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1041. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1042. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1043. Failed writing message. Aborting connection.
  1044. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1045. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1046. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1047. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1048. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1049. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1050. Failed writing message. Aborting connection.
  1051. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1052. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1053. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1054. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1055. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1056. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1057. Failed writing message. Aborting connection.
  1058. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1059. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1060. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1061. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1062. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1063. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1064. Failed writing message. Aborting connection.
  1065. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1066. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1067. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1068. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1069. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1070. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1071. Failed writing message. Aborting connection.
  1072. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1073. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1074. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1075. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1076. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1077. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1078. Failed writing message. Aborting connection.
  1079. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1080. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1081. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1082. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1083. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1084. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1085. Failed writing message. Aborting connection.
  1086. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1087. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1088. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1089. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1090. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1091. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1092. Failed writing message. Aborting connection.
  1093. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1094. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1095. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1096. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1097. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1098. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1099. Failed writing message. Aborting connection.
  1100. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1101. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1102. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1103. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1104. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1105. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1106. Failed writing message. Aborting connection.
  1107. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1108. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1109. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1110. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1111. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1112. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1113. Failed writing message. Aborting connection.
  1114. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1115. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1116. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1117. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1118. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1119. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1120. Failed writing message. Aborting connection.
  1121. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1122. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1123. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1124. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1125. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1126. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1127. Failed writing message. Aborting connection.
  1128. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1129. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1130. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1131. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1132. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1133. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1134. Failed writing message. Aborting connection.
  1135. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1136. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1137. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1138. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1139. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1140. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1141. Failed writing message. Aborting connection.
  1142. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1143. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1144. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1145. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1146. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1147. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1148. Failed writing message. Aborting connection.
  1149. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1150. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1151. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1152. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1153. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1154. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1155. Failed writing message. Aborting connection.
  1156. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1157. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1158. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1159. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1160. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1161. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1162. Failed writing message. Aborting connection.
  1163. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1164. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1165. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1166. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1167. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1168. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1169. Failed writing message. Aborting connection.
  1170. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1171. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1172. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1173. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1174. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1175. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1176. Failed writing message. Aborting connection.
  1177. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1178. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1179. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1180. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1181. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1182. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1183. Failed writing message. Aborting connection.
  1184. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1185. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1186. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1187. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1188. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1189. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1190. Failed writing message. Aborting connection.
  1191. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1192. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1193. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1194. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1195. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1196. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1197. Failed writing message. Aborting connection.
  1198. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1199. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1200. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1201. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1202. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1203. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1204. Failed writing message. Aborting connection.
  1205. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1206. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1207. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1208. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1209. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1210. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1211. Failed writing message. Aborting connection.
  1212. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1213. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1214. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1215. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1216. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1217. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1218. Failed writing message. Aborting connection.
  1219. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1220. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1221. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1222. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1223. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1224. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1225. Failed writing message. Aborting connection.
  1226. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1227. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1228. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1229. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1230. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1231. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1232. Failed writing message. Aborting connection.
  1233. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1234. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1235. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1236. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1237. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1238. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1239. Failed writing message. Aborting connection.
  1240. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1241. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1242. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1243. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1244. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1245. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1246. Failed writing message. Aborting connection.
  1247. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1248. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1249. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1250. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1251. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1252. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1253. Failed writing message. Aborting connection.
  1254. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1255. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1256. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1257. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1258. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1259. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1260. Failed writing message. Aborting connection.
  1261. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1262. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1263. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1264. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1265. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1266. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1267. Failed writing message. Aborting connection.
  1268. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1269. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1270. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1271. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1272. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1273. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1274. Failed writing message. Aborting connection.
  1275. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1276. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1277. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1278. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1279. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1280. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1281. Failed writing message. Aborting connection.
  1282. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1283. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1284. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1285. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1286. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1287. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1288. Failed writing message. Aborting connection.
  1289. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1290. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1291. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1292. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1293. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1294. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1295. Failed writing message. Aborting connection.
  1296. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1297. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1298. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1299. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1300. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1301. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1302. Failed writing message. Aborting connection.
  1303. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1304. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1305. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1306. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1307. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1308. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1309. Failed writing message. Aborting connection.
  1310. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1311. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1312. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1313. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1314. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1315. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1316. Failed writing message. Aborting connection.
  1317. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1318. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1319. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1320. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1321. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1322. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1323. Failed writing message. Aborting connection.
  1324. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1325. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1326. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1327. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1328. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1329. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1330. Failed writing message. Aborting connection.
  1331. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1332. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1333. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1334. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1335. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1336. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1337. Failed writing message. Aborting connection.
  1338. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1339. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1340. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1341. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1342. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1343. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1344. Failed writing message. Aborting connection.
  1345. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1346. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1347. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1348. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1349. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1350. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1351. Failed writing message. Aborting connection.
  1352. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1353. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1354. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1355. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1356. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1357. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1358. Failed writing message. Aborting connection.
  1359. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1360. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1361. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1362. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1363. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1364. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1365. Failed writing message. Aborting connection.
  1366. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1367. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1368. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1369. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1370. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1371. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  1372. Heartbeat took longer than "00:00:01" at "06/01/2019 00:41:04 +00:00".
  1373. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1374. Failed writing message. Aborting connection.
  1375. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1376. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1377. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1378. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1379. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1380. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1381. Failed writing message. Aborting connection.
  1382. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1383. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1384. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1385. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1386. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1387. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1388. Failed writing message. Aborting connection.
  1389. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1390. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1391. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1392. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1393. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1394. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1395. Failed writing message. Aborting connection.
  1396. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1397. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1398. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1399. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1400. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1401. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1402. Failed writing message. Aborting connection.
  1403. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1404. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1405. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1406. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1407. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1408. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1409. Failed writing message. Aborting connection.
  1410. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1411. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1412. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1413. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1414. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1415. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1416. Failed writing message. Aborting connection.
  1417. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1418. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1419. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1420. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1421. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1422. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1423. Failed writing message. Aborting connection.
  1424. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1425. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1426. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1427. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1428. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1429. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1430. Failed writing message. Aborting connection.
  1431. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1432. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1433. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1434. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1435. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1436. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1437. Failed writing message. Aborting connection.
  1438. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1439. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1440. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1441. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1442. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1443. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1444. Failed writing message. Aborting connection.
  1445. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1446. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1447. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1448. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1449. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1450. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1451. Failed writing message. Aborting connection.
  1452. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1453. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1454. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1455. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1456. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1457. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1458. Failed writing message. Aborting connection.
  1459. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1460. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1461. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1462. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1463. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1464. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1465. Failed writing message. Aborting connection.
  1466. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1467. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1468. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1469. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1470. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1471. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1472. Failed writing message. Aborting connection.
  1473. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1474. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1475. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1476. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1477. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1478. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1479. Failed writing message. Aborting connection.
  1480. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1481. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1482. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1483. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1484. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1485. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1486. Failed writing message. Aborting connection.
  1487. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1488. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1489. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1490. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1491. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1492. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1493. Failed writing message. Aborting connection.
  1494. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1495. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1496. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1497. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1498. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1499. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1500. Failed writing message. Aborting connection.
  1501. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1502. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1503. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1504. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1505. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1506. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1507. Failed writing message. Aborting connection.
  1508. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1509. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1510. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1511. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1512. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1513. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1514. Failed writing message. Aborting connection.
  1515. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1516. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1517. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1518. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1519. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1520. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1521. Failed writing message. Aborting connection.
  1522. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1523. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1524. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1525. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1526. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1527. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1528. Failed writing message. Aborting connection.
  1529. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1530. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1531. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1532. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1533. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1534. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1535. Failed writing message. Aborting connection.
  1536. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1537. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1538. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1539. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1540. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1541. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1542. Failed writing message. Aborting connection.
  1543. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1544. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1545. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1546. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1547. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1548. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1549. Failed writing message. Aborting connection.
  1550. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1551. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1552. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1553. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1554. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1555. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1556. Failed writing message. Aborting connection.
  1557. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1558. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1559. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1560. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1561. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1562. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1563. Failed writing message. Aborting connection.
  1564. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1565. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1566. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1567. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1568. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1569. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1570. Failed writing message. Aborting connection.
  1571. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1572. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1573. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1574. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1575. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1576. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1577. Failed writing message. Aborting connection.
  1578. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1579. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1580. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1581. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1582. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1583. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1584. Failed writing message. Aborting connection.
  1585. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1586. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1587. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1588. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1589. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1590. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1591. Failed writing message. Aborting connection.
  1592. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1593. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1594. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1595. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1596. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1597. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1598. Failed writing message. Aborting connection.
  1599. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1600. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1601. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1602. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1603. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1604. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1605. Failed writing message. Aborting connection.
  1606. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1607. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1608. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1609. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1610. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1611. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1612. Failed writing message. Aborting connection.
  1613. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1614. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1615. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1616. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1617. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1618. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1619. Failed writing message. Aborting connection.
  1620. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1621. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1622. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1623. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1624. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1625. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1626. Failed writing message. Aborting connection.
  1627. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1628. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1629. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1630. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1631. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1632. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1633. Failed writing message. Aborting connection.
  1634. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1635. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1636. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1637. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1638. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1639. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1640. Failed writing message. Aborting connection.
  1641. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1642. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1643. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1644. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1645. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1646. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1647. Failed writing message. Aborting connection.
  1648. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1649. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1650. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1651. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1652. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1653. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1654. Failed writing message. Aborting connection.
  1655. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1656. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1657. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1658. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1659. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1660. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1661. Failed writing message. Aborting connection.
  1662. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1663. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1664. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1665. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1666. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1667. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1668. Failed writing message. Aborting connection.
  1669. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1670. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1671. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1672. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1673. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1674. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1675. Failed writing message. Aborting connection.
  1676. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1677. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1678. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1679. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1680. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1681. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1682. Failed writing message. Aborting connection.
  1683. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1684. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1685. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1686. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1687. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1688. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1689. Failed writing message. Aborting connection.
  1690. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1691. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1692. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1693. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1694. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1695. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1696. Failed writing message. Aborting connection.
  1697. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1698. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1699. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1700. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1701. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1702. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1703. Failed writing message. Aborting connection.
  1704. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1705. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1706. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1707. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1708. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1709. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1710. Failed writing message. Aborting connection.
  1711. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1712. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1713. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1714. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1715. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1716. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1717. Failed writing message. Aborting connection.
  1718. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1719. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1720. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1721. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1722. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1723. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1724. Failed writing message. Aborting connection.
  1725. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1726. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1727. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1728. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1729. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1730. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1731. Failed writing message. Aborting connection.
  1732. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1733. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1734. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1735. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1736. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1737. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1738. Failed writing message. Aborting connection.
  1739. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1740. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1741. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1742. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1743. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1744. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1745. Failed writing message. Aborting connection.
  1746. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1747. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1748. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1749. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1750. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1751. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1752. Failed writing message. Aborting connection.
  1753. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1754. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1755. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1756. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1757. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1758. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1759. Failed writing message. Aborting connection.
  1760. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1761. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1762. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1763. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1764. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1765. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1766. Failed writing message. Aborting connection.
  1767. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1768. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1769. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1770. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1771. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1772. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1773. Failed writing message. Aborting connection.
  1774. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1775. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1776. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1777. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1778. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1779. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1780. Failed writing message. Aborting connection.
  1781. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1782. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1783. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1784. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1785. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1786. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1787. Failed writing message. Aborting connection.
  1788. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1789. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1790. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1791. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1792. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1793. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1794. Failed writing message. Aborting connection.
  1795. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1796. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1797. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1798. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1799. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1800. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1801. Failed writing message. Aborting connection.
  1802. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1803. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1804. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1805. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1806. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1807. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1808. Failed writing message. Aborting connection.
  1809. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1810. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1811. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1812. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1813. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1814. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1815. Failed writing message. Aborting connection.
  1816. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1817. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1818. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1819. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1820. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1821. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1822. Failed writing message. Aborting connection.
  1823. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1824. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1825. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1826. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1827. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1828. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1829. Failed writing message. Aborting connection.
  1830. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1831. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1832. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1833. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1834. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1835. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1836. Failed writing message. Aborting connection.
  1837. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1838. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1839. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1840. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1841. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1842. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1843. Failed writing message. Aborting connection.
  1844. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1845. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1846. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1847. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1848. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1849. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1850. Failed writing message. Aborting connection.
  1851. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1852. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1853. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1854. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1855. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1856. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1857. Failed writing message. Aborting connection.
  1858. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1859. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1860. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1861. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1862. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1863. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1864. Failed writing message. Aborting connection.
  1865. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1866. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1867. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1868. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1869. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1870. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1871. Failed writing message. Aborting connection.
  1872. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1873. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1874. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1875. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1876. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1877. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1878. Failed writing message. Aborting connection.
  1879. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1880. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1881. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1882. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1883. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1884. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1885. Failed writing message. Aborting connection.
  1886. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1887. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1888. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1889. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1890. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1891. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1892. Failed writing message. Aborting connection.
  1893. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1894. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1895. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1896. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1897. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1898. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1899. Failed writing message. Aborting connection.
  1900. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1901. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1902. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1903. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1904. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1905. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1906. Failed writing message. Aborting connection.
  1907. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1908. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1909. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1910. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1911. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1912. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1913. Failed writing message. Aborting connection.
  1914. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1915. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1916. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1917. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1918. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1919. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1920. Failed writing message. Aborting connection.
  1921. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1922. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1923. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1924. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1925. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1926. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1927. Failed writing message. Aborting connection.
  1928. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1929. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1930. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1931. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1932. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1933. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1934. Failed writing message. Aborting connection.
  1935. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1936. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1937. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1938. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1939. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1940. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1941. Failed writing message. Aborting connection.
  1942. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1943. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1944. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1945. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1946. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1947. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1948. Failed writing message. Aborting connection.
  1949. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1950. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1951. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1952. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1953. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1954. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1955. Failed writing message. Aborting connection.
  1956. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1957. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1958. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1959. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1960. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1961. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1962. Failed writing message. Aborting connection.
  1963. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1964. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1965. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1966. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1967. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1968. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1969. Failed writing message. Aborting connection.
  1970. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1971. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1972. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1973. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1974. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1975. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1976. Failed writing message. Aborting connection.
  1977. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1978. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1979. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1980. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1981. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1982. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1983. Failed writing message. Aborting connection.
  1984. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1985. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1986. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1987. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1988. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1989. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1990. Failed writing message. Aborting connection.
  1991. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1992. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1993. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1994. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1995. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1996. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1997. Failed writing message. Aborting connection.
  1998. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1999. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2000. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2001. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2002. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2003. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2004. Failed writing message. Aborting connection.
  2005. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2006. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2007. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2008. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2009. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2010. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2011. Failed writing message. Aborting connection.
  2012. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2013. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2014. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2015. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2016. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2017. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2018. Failed writing message. Aborting connection.
  2019. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2020. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2021. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2022. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2023. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2024. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2025. Failed writing message. Aborting connection.
  2026. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2027. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2028. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2029. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2030. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2031. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2032. Failed writing message. Aborting connection.
  2033. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2034. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2035. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2036. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2037. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2038. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2039. Failed writing message. Aborting connection.
  2040. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2041. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2042. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2043. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2044. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2045. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2046. Failed writing message. Aborting connection.
  2047. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2048. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2049. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2050. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2051. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2052. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2053. Failed writing message. Aborting connection.
  2054. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2055. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2056. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2057. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2058. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2059. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2060. Failed writing message. Aborting connection.
  2061. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2062. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2063. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2064. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2065. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2066. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2067. Failed writing message. Aborting connection.
  2068. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2069. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2070. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2071. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2072. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2073. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2074. Failed writing message. Aborting connection.
  2075. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2076. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2077. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2078. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2079. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2080. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2081. Failed writing message. Aborting connection.
  2082. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2083. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2084. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2085. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2086. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2087. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2088. Failed writing message. Aborting connection.
  2089. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2090. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2091. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2092. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2093. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2094. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2095. Failed writing message. Aborting connection.
  2096. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2097. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2098. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2099. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2100. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2101. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2102. Failed writing message. Aborting connection.
  2103. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2104. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2105. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2106. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2107. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2108. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2109. Failed writing message. Aborting connection.
  2110. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2111. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2112. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2113. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2114. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2115. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2116. Failed writing message. Aborting connection.
  2117. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2118. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2119. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2120. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2121. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2122. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2123. Failed writing message. Aborting connection.
  2124. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2125. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2126. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2127. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2128. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2129. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2130. Failed writing message. Aborting connection.
  2131. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2132. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2133. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2134. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2135. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2136. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2137. Failed writing message. Aborting connection.
  2138. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2139. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2140. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2141. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2142. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2143. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2144. Failed writing message. Aborting connection.
  2145. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2146. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2147. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2148. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2149. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2150. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2151. Failed writing message. Aborting connection.
  2152. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2153. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2154. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2155. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2156. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2157. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2158. Failed writing message. Aborting connection.
  2159. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2160. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2161. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2162. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2163. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2164. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2165. Failed writing message. Aborting connection.
  2166. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2167. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2168. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2169. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2170. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2171. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2172. Failed writing message. Aborting connection.
  2173. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2174. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2175. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2176. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2177. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2178. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2179. Failed writing message. Aborting connection.
  2180. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2181. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2182. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2183. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2184. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2185. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2186. Failed writing message. Aborting connection.
  2187. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2188. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2189. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2190. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2191. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2192. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2193. Failed writing message. Aborting connection.
  2194. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2195. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2196. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2197. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2198. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2199. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  2200. Heartbeat took longer than "00:00:01" at "06/01/2019 00:41:06 +00:00".
  2201. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2202. Failed writing message. Aborting connection.
  2203. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2204. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2205. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2206. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2207. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2208. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2209. Failed writing message. Aborting connection.
  2210. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2211. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2212. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2213. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2214. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2215. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2216. Failed writing message. Aborting connection.
  2217. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2218. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2219. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2220. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2221. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2222. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2223. Failed writing message. Aborting connection.
  2224. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2225. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2226. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2227. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2228. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2229. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2230. Failed writing message. Aborting connection.
  2231. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2232. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2233. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2234. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2235. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2236. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2237. Failed writing message. Aborting connection.
  2238. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2239. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2240. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2241. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2242. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2243. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2244. Failed writing message. Aborting connection.
  2245. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2246. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2247. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2248. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2249. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2250. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2251. Failed writing message. Aborting connection.
  2252. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2253. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2254. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2255. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2256. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2257. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2258. Failed writing message. Aborting connection.
  2259. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2260. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2261. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2262. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2263. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2264. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2265. Failed writing message. Aborting connection.
  2266. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2267. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2268. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2269. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2270. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2271. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2272. Failed writing message. Aborting connection.
  2273. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2274. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2275. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2276. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2277. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2278. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2279. Failed writing message. Aborting connection.
  2280. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2281. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2282. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2283. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2284. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2285. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2286. Failed writing message. Aborting connection.
  2287. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2288. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2289. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2290. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2291. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2292. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2293. Failed writing message. Aborting connection.
  2294. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2295. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2296. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2297. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2298. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2299. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2300. Failed writing message. Aborting connection.
  2301. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2302. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2303. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2304. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2305. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2306. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2307. Failed writing message. Aborting connection.
  2308. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2309. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2310. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2311. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2312. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2313. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2314. Failed writing message. Aborting connection.
  2315. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2316. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2317. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2318. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2319. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2320. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2321. Failed writing message. Aborting connection.
  2322. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2323. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2324. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2325. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2326. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2327. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2328. Failed writing message. Aborting connection.
  2329. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2330. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2331. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2332. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2333. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2334. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2335. Failed writing message. Aborting connection.
  2336. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2337. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2338. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2339. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2340. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2341. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2342. Failed writing message. Aborting connection.
  2343. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2344. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2345. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2346. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2347. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2348. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2349. Failed writing message. Aborting connection.
  2350. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2351. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2352. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2353. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2354. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2355. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2356. Failed writing message. Aborting connection.
  2357. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2358. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2359. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2360. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2361. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2362. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2363. Failed writing message. Aborting connection.
  2364. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2365. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2366. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2367. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2368. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2369. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2370. Failed writing message. Aborting connection.
  2371. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2372. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2373. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2374. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2375. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2376. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2377. Failed writing message. Aborting connection.
  2378. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2379. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2380. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2381. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2382. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2383. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2384. Failed writing message. Aborting connection.
  2385. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2386. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2387. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2388. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2389. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2390. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2391. Failed writing message. Aborting connection.
  2392. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2393. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2394. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2395. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2396. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2397. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2398. Failed writing message. Aborting connection.
  2399. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2400. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2401. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2402. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2403. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2404. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2405. Failed writing message. Aborting connection.
  2406. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2407. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2408. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2409. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2410. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2411. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2412. Failed writing message. Aborting connection.
  2413. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2414. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2415. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2416. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2417. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2418. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2419. Failed writing message. Aborting connection.
  2420. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2421. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2422. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2423. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2424. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2425. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2426. Failed writing message. Aborting connection.
  2427. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2428. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2429. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2430. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2431. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2432. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2433. Failed writing message. Aborting connection.
  2434. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2435. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2436. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2437. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2438. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2439. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2440. Failed writing message. Aborting connection.
  2441. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2442. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2443. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2444. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2445. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2446. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2447. Failed writing message. Aborting connection.
  2448. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2449. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2450. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2451. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2452. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2453. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2454. Failed writing message. Aborting connection.
  2455. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2456. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2457. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2458. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2459. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2460. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2461. Failed writing message. Aborting connection.
  2462. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2463. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2464. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2465. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2466. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2467. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2468. Failed writing message. Aborting connection.
  2469. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2470. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2471. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2472. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2473. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2474. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2475. Failed writing message. Aborting connection.
  2476. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2477. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2478. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2479. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2480. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2481. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2482. Failed writing message. Aborting connection.
  2483. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2484. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2485. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2486. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2487. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2488. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2489. Failed writing message. Aborting connection.
  2490. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2491. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2492. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2493. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2494. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2495. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2496. Failed writing message. Aborting connection.
  2497. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2498. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2499. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2500. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2501. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2502. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2503. Failed writing message. Aborting connection.
  2504. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2505. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2506. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2507. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2508. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2509. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2510. Failed writing message. Aborting connection.
  2511. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2512. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2513. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2514. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2515. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2516. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2517. Failed writing message. Aborting connection.
  2518. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2519. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2520. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2521. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2522. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2523. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2524. Failed writing message. Aborting connection.
  2525. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2526. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2527. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2528. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2529. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2530. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2531. Failed writing message. Aborting connection.
  2532. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2533. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2534. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2535. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2536. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2537. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2538. Failed writing message. Aborting connection.
  2539. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2540. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2541. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2542. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2543. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2544. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2545. Failed writing message. Aborting connection.
  2546. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2547. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2548. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2549. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2550. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2551. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2552. Failed writing message. Aborting connection.
  2553. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2554. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2555. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2556. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2557. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2558. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2559. Failed writing message. Aborting connection.
  2560. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2561. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2562. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2563. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2564. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2565. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2566. Failed writing message. Aborting connection.
  2567. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2568. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2569. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2570. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2571. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2572. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2573. Failed writing message. Aborting connection.
  2574. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2575. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2576. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2577. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2578. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2579. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2580. Failed writing message. Aborting connection.
  2581. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2582. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2583. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2584. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2585. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2586. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2587. Failed writing message. Aborting connection.
  2588. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2589. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2590. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2591. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2592. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2593. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2594. Failed writing message. Aborting connection.
  2595. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2596. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2597. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2598. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2599. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2600. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2601. Failed writing message. Aborting connection.
  2602. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2603. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2604. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2605. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2606. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2607. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2608. Failed writing message. Aborting connection.
  2609. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2610. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2611. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2612. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2613. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2614. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2615. Failed writing message. Aborting connection.
  2616. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2617. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2618. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2619. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2620. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2621. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2622. Failed writing message. Aborting connection.
  2623. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2624. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2625. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2626. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2627. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2628. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2629. Failed writing message. Aborting connection.
  2630. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2631. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2632. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2633. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2634. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2635. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2636. Failed writing message. Aborting connection.
  2637. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2638. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2639. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2640. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2641. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2642. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2643. Failed writing message. Aborting connection.
  2644. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2645. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2646. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2647. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2648. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2649. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2650. Failed writing message. Aborting connection.
  2651. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2652. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2653. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2654. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2655. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2656. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2657. Failed writing message. Aborting connection.
  2658. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2659. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2660. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2661. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2662. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2663. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2664. Failed writing message. Aborting connection.
  2665. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2666. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2667. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2668. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2669. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2670. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2671. Failed writing message. Aborting connection.
  2672. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2673. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2674. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2675. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2676. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2677. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2678. Failed writing message. Aborting connection.
  2679. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2680. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2681. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2682. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2683. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2684. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2685. Failed writing message. Aborting connection.
  2686. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2687. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2688. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2689. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2690. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2691. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2692. Failed writing message. Aborting connection.
  2693. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2694. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2695. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2696. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2697. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2698. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2699. Failed writing message. Aborting connection.
  2700. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2701. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2702. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2703. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2704. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2705. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2706. Failed writing message. Aborting connection.
  2707. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2708. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2709. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2710. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2711. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2712. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2713. Failed writing message. Aborting connection.
  2714. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2715. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2716. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2717. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2718. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2719. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2720. Failed writing message. Aborting connection.
  2721. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2722. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2723. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2724. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2725. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2726. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2727. Failed writing message. Aborting connection.
  2728. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2729. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2730. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2731. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2732. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2733. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2734. Failed writing message. Aborting connection.
  2735. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2736. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2737. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2738. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2739. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2740. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2741. Failed writing message. Aborting connection.
  2742. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2743. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2744. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2745. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2746. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2747. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2748. Failed writing message. Aborting connection.
  2749. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2750. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2751. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2752. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2753. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2754. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2755. Failed writing message. Aborting connection.
  2756. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2757. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2758. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2759. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2760. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2761. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2762. Failed writing message. Aborting connection.
  2763. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2764. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2765. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2766. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2767. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2768. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2769. Failed writing message. Aborting connection.
  2770. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2771. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2772. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2773. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2774. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2775. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2776. Failed writing message. Aborting connection.
  2777. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2778. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2779. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2780. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2781. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2782. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2783. Failed writing message. Aborting connection.
  2784. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2785. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2786. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2787. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2788. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2789. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2790. Failed writing message. Aborting connection.
  2791. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2792. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2793. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2794. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2795. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2796. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2797. Failed writing message. Aborting connection.
  2798. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2799. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2800. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2801. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2802. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2803. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2804. Failed writing message. Aborting connection.
  2805. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2806. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2807. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2808. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2809. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2810. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2811. Failed writing message. Aborting connection.
  2812. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2813. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2814. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2815. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2816. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2817. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2818. Failed writing message. Aborting connection.
  2819. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2820. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2821. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2822. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2823. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2824. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2825. Failed writing message. Aborting connection.
  2826. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2827. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2828. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2829. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2830. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2831. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2832. Failed writing message. Aborting connection.
  2833. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2834. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2835. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2836. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2837. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2838. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2839. Failed writing message. Aborting connection.
  2840. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2841. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2842. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2843. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2844. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2845. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2846. Failed writing message. Aborting connection.
  2847. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2848. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2849. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2850. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2851. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2852. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2853. Failed writing message. Aborting connection.
  2854. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2855. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2856. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2857. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2858. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2859. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2860. Failed writing message. Aborting connection.
  2861. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2862. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2863. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2864. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2865. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2866. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2867. Failed writing message. Aborting connection.
  2868. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2869. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2870. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2871. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2872. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2873. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2874. Failed writing message. Aborting connection.
  2875. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2876. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2877. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2878. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2879. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2880. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2881. Failed writing message. Aborting connection.
  2882. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2883. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2884. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2885. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2886. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2887. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2888. Failed writing message. Aborting connection.
  2889. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2890. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2891. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2892. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2893. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2894. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2895. Failed writing message. Aborting connection.
  2896. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2897. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2898. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2899. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2900. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2901. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2902. Failed writing message. Aborting connection.
  2903. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2904. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2905. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2906. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2907. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2908. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2909. Failed writing message. Aborting connection.
  2910. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2911. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2912. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2913. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2914. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2915. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2916. Failed writing message. Aborting connection.
  2917. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2918. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2919. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2920. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2921. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2922. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2923. Failed writing message. Aborting connection.
  2924. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2925. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2926. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2927. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2928. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2929. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2930. Failed writing message. Aborting connection.
  2931. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2932. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2933. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2934. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2935. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2936. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2937. Failed writing message. Aborting connection.
  2938. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2939. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2940. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2941. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2942. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2943. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2944. Failed writing message. Aborting connection.
  2945. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2946. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2947. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2948. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2949. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2950. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2951. Failed writing message. Aborting connection.
  2952. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2953. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2954. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2955. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2956. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2957. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2958. Failed writing message. Aborting connection.
  2959. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2960. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2961. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2962. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2963. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2964. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2965. Failed writing message. Aborting connection.
  2966. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2967. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2968. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2969. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2970. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2971. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2972. Failed writing message. Aborting connection.
  2973. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2974. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2975. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2976. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2977. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2978. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2979. Failed writing message. Aborting connection.
  2980. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2981. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2982. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2983. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2984. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2985. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2986. Failed writing message. Aborting connection.
  2987. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2988. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2989. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2990. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2991. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2992. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2993. Failed writing message. Aborting connection.
  2994. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2995. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2996. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2997. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2998. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2999. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3000. Failed writing message. Aborting connection.
  3001. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3002. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3003. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3004. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3005. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3006. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3007. Failed writing message. Aborting connection.
  3008. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3009. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3010. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3011. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3012. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3013. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3014. Failed writing message. Aborting connection.
  3015. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3016. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3017. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3018. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3019. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3020. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3021. Failed writing message. Aborting connection.
  3022. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3023. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3024. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3025. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3026. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3027. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3028. Failed writing message. Aborting connection.
  3029. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3030. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3031. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3032. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3033. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3034. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3035. Failed writing message. Aborting connection.
  3036. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3037. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3038. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3039. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3040. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3041. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3042. Failed writing message. Aborting connection.
  3043. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3044. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3045. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3046. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3047. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3048. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3049. Failed writing message. Aborting connection.
  3050. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3051. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3052. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3053. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3054. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3055. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3056. Failed writing message. Aborting connection.
  3057. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3058. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3059. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3060. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3061. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3062. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3063. Failed writing message. Aborting connection.
  3064. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3065. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3066. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3067. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3068. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3069. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3070. Failed writing message. Aborting connection.
  3071. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3072. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3073. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3074. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3075. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3076. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3077. Failed writing message. Aborting connection.
  3078. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3079. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3080. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3081. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3082. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3083. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3084. Failed writing message. Aborting connection.
  3085. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3086. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3087. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3088. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3089. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3090. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3091. Failed writing message. Aborting connection.
  3092. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3093. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3094. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3095. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3096. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3097. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3098. Failed writing message. Aborting connection.
  3099. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3100. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3101. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3102. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3103. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3104. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3105. Failed writing message. Aborting connection.
  3106. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3107. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3108. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3109. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3110. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3111. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3112. Failed writing message. Aborting connection.
  3113. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3114. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3115. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3116. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3117. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3118. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3119. Failed writing message. Aborting connection.
  3120. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3121. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3122. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3123. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3124. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3125. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3126. Failed writing message. Aborting connection.
  3127. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3128. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3129. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3130. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3131. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3132. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3133. Failed writing message. Aborting connection.
  3134. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3135. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3136. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3137. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3138. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3139. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3140. Failed writing message. Aborting connection.
  3141. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3142. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3143. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3144. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3145. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3146. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3147. Failed writing message. Aborting connection.
  3148. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3149. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3150. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3151. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3152. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3153. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3154. Failed writing message. Aborting connection.
  3155. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3156. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3157. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3158. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3159. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3160. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3161. Failed writing message. Aborting connection.
  3162. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3163. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3164. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3165. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3166. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3167. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3168. Failed writing message. Aborting connection.
  3169. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3170. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3171. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3172. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3173. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3174. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3175. Failed writing message. Aborting connection.
  3176. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3177. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3178. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3179. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3180. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3181. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3182. Failed writing message. Aborting connection.
  3183. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3184. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3185. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3186. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3187. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3188. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3189. Failed writing message. Aborting connection.
  3190. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3191. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3192. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3193. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3194. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3195. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3196. Failed writing message. Aborting connection.
  3197. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3198. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3199. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3200. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3201. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3202. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3203. Failed writing message. Aborting connection.
  3204. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3205. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3206. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3207. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3208. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3209. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3210. Failed writing message. Aborting connection.
  3211. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3212. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3213. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3214. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3215. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3216. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3217. Failed writing message. Aborting connection.
  3218. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3219. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3220. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3221. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3222. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3223. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3224. Failed writing message. Aborting connection.
  3225. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3226. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3227. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3228. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3229. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3230. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3231. Failed writing message. Aborting connection.
  3232. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3233. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3234. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3235. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3236. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3237. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3238. Failed writing message. Aborting connection.
  3239. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3240. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3241. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3242. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3243. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3244. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3245. Failed writing message. Aborting connection.
  3246. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3247. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3248. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3249. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3250. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3251. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3252. Failed writing message. Aborting connection.
  3253. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3254. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3255. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3256. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3257. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3258. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3259. Failed writing message. Aborting connection.
  3260. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3261. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3262. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3263. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3264. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3265. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3266. Failed writing message. Aborting connection.
  3267. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3268. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3269. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3270. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3271. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3272. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3273. Failed writing message. Aborting connection.
  3274. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3275. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3276. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3277. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3278. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3279. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3280. Failed writing message. Aborting connection.
  3281. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3282. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3283. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3284. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3285. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3286. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3287. Failed writing message. Aborting connection.
  3288. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3289. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3290. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3291. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3292. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3293. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3294. Failed writing message. Aborting connection.
  3295. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3296. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3297. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3298. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3299. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3300. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3301. Failed writing message. Aborting connection.
  3302. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3303. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3304. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3305. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3306. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3307. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3308. Failed writing message. Aborting connection.
  3309. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3310. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3311. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3312. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3313. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3314. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3315. Failed writing message. Aborting connection.
  3316. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3317. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3318. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3319. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3320. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3321. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3322. Failed writing message. Aborting connection.
  3323. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3324. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3325. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3326. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3327. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3328. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3329. Failed writing message. Aborting connection.
  3330. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3331. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3332. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3333. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3334. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3335. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3336. Failed writing message. Aborting connection.
  3337. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3338. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3339. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3340. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3341. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3342. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3343. Failed writing message. Aborting connection.
  3344. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3345. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3346. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3347. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3348. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3349. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3350. Failed writing message. Aborting connection.
  3351. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3352. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3353. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3354. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3355. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3356. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3357. Failed writing message. Aborting connection.
  3358. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3359. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3360. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3361. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3362. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3363. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3364. Failed writing message. Aborting connection.
  3365. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3366. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3367. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3368. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3369. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3370. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3371. Failed writing message. Aborting connection.
  3372. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3373. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3374. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3375. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3376. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3377. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3378. Failed writing message. Aborting connection.
  3379. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3380. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3381. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3382. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3383. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3384. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3385. Failed writing message. Aborting connection.
  3386. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3387. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3388. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3389. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3390. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3391. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3392. Failed writing message. Aborting connection.
  3393. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3394. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3395. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3396. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3397. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3398. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3399. Failed writing message. Aborting connection.
  3400. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3401. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3402. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3403. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3404. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3405. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3406. Failed writing message. Aborting connection.
  3407. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3408. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3409. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3410. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3411. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3412. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3413. Failed writing message. Aborting connection.
  3414. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3415. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3416. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3417. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3418. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3419. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3420. Failed writing message. Aborting connection.
  3421. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3422. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3423. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3424. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3425. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3426. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3427. Failed writing message. Aborting connection.
  3428. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3429. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3430. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3431. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3432. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3433. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3434. Failed writing message. Aborting connection.
  3435. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3436. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3437. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3438. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3439. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3440. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3441. Failed writing message. Aborting connection.
  3442. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3443. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3444. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3445. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3446. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3447. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3448. Failed writing message. Aborting connection.
  3449. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3450. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3451. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3452. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3453. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3454. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3455. Failed writing message. Aborting connection.
  3456. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3457. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3458. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3459. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3460. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3461. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3462. Failed writing message. Aborting connection.
  3463. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3464. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3465. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3466. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3467. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3468. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3469. Failed writing message. Aborting connection.
  3470. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3471. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3472. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3473. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3474. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3475. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3476. Failed writing message. Aborting connection.
  3477. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3478. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3479. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3480. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3481. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3482. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3483. Failed writing message. Aborting connection.
  3484. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3485. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3486. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3487. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3488. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3489. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3490. Failed writing message. Aborting connection.
  3491. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3492. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3493. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3494. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3495. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3496. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3497. Failed writing message. Aborting connection.
  3498. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3499. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3500. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3501. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3502. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3503. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3504. Failed writing message. Aborting connection.
  3505. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3506. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3507. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3508. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3509. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3510. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3511. Failed writing message. Aborting connection.
  3512. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3513. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3514. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3515. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3516. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3517. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3518. Failed writing message. Aborting connection.
  3519. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3520. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3521. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3522. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3523. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3524. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3525. Failed writing message. Aborting connection.
  3526. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3527. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3528. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3529. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3530. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3531. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3532. Failed writing message. Aborting connection.
  3533. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3534. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3535. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3536. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3537. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3538. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3539. Failed writing message. Aborting connection.
  3540. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3541. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3542. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3543. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3544. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3545. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3546. Failed writing message. Aborting connection.
  3547. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3548. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3549. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3550. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3551. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3552. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3553. Failed writing message. Aborting connection.
  3554. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3555. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3556. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3557. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3558. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3559. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3560. Failed writing message. Aborting connection.
  3561. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3562. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3563. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3564. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3565. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3566. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3567. Failed writing message. Aborting connection.
  3568. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3569. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3570. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3571. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3572. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3573. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3574. Failed writing message. Aborting connection.
  3575. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3576. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3577. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3578. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3579. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3580. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3581. Failed writing message. Aborting connection.
  3582. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3583. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3584. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3585. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3586. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3587. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3588. Failed writing message. Aborting connection.
  3589. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3590. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3591. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3592. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3593. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3594. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3595. Failed writing message. Aborting connection.
  3596. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3597. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3598. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3599. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3600. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3601. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3602. Failed writing message. Aborting connection.
  3603. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3604. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3605. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3606. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3607. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3608. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3609. Failed writing message. Aborting connection.
  3610. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3611. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3612. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3613. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3614. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3615. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3616. Failed writing message. Aborting connection.
  3617. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3618. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3619. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3620. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3621. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3622. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3623. Failed writing message. Aborting connection.
  3624. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3625. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3626. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3627. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3628. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3629. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3630. Failed writing message. Aborting connection.
  3631. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3632. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3633. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3634. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3635. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3636. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3637. Failed writing message. Aborting connection.
  3638. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3639. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3640. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3641. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3642. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3643. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3644. Failed writing message. Aborting connection.
  3645. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3646. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3647. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3648. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3649. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3650. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3651. Failed writing message. Aborting connection.
  3652. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3653. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3654. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3655. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3656. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3657. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3658. Failed writing message. Aborting connection.
  3659. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3660. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3661. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3662. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3663. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3664. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3665. Failed writing message. Aborting connection.
  3666. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3667. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3668. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3669. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3670. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3671. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3672. Failed writing message. Aborting connection.
  3673. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3674. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3675. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3676. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3677. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3678. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3679. Failed writing message. Aborting connection.
  3680. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3681. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3682. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3683. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3684. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3685. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3686. Failed writing message. Aborting connection.
  3687. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3688. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3689. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3690. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3691. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3692. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3693. Failed writing message. Aborting connection.
  3694. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3695. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3696. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3697. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3698. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3699. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3700. Failed writing message. Aborting connection.
  3701. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3702. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3703. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3704. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3705. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3706. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3707. Failed writing message. Aborting connection.
  3708. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3709. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3710. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3711. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3712. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3713. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3714. Failed writing message. Aborting connection.
  3715. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3716. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3717. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3718. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3719. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3720. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3721. Failed writing message. Aborting connection.
  3722. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3723. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3724. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3725. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3726. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3727. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3728. Failed writing message. Aborting connection.
  3729. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3730. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3731. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3732. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3733. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3734. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3735. Failed writing message. Aborting connection.
  3736. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3737. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3738. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3739. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3740. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3741. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3742. Failed writing message. Aborting connection.
  3743. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3744. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3745. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3746. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3747. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3748. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3749. Failed writing message. Aborting connection.
  3750. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3751. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3752. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3753. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3754. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3755. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3756. Failed writing message. Aborting connection.
  3757. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3758. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3759. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3760. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3761. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3762. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3763. Failed writing message. Aborting connection.
  3764. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3765. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3766. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3767. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3768. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3769. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3770. Failed writing message. Aborting connection.
  3771. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3772. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3773. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3774. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3775. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3776. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3777. Failed writing message. Aborting connection.
  3778. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3779. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3780. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3781. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3782. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3783. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3784. Failed writing message. Aborting connection.
  3785. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3786. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3787. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3788. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3789. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3790. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3791. Failed writing message. Aborting connection.
  3792. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3793. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3794. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3795. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3796. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3797. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3798. Failed writing message. Aborting connection.
  3799. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3800. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3801. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3802. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3803. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3804. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3805. Failed writing message. Aborting connection.
  3806. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3807. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3808. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3809. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3810. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3811. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3812. Failed writing message. Aborting connection.
  3813. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3814. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3815. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3816. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3817. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3818. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3819. Failed writing message. Aborting connection.
  3820. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3821. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3822. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3823. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3824. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3825. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3826. Failed writing message. Aborting connection.
  3827. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3828. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3829. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3830. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3831. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3832. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3833. Failed writing message. Aborting connection.
  3834. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3835. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3836. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3837. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3838. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3839. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3840. Failed writing message. Aborting connection.
  3841. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3842. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3843. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3844. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3845. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3846. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3847. Failed writing message. Aborting connection.
  3848. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3849. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3850. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3851. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3852. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3853. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3854. Failed writing message. Aborting connection.
  3855. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3856. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3857. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3858. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3859. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3860. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3861. Failed writing message. Aborting connection.
  3862. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3863. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3864. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3865. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3866. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3867. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3868. Failed writing message. Aborting connection.
  3869. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3870. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3871. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3872. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3873. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3874. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3875. Failed writing message. Aborting connection.
  3876. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3877. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3878. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3879. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3880. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3881. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3882. Failed writing message. Aborting connection.
  3883. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3884. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3885. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3886. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3887. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3888. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  3889. Heartbeat took longer than "00:00:01" at "06/01/2019 00:41:07 +00:00".
  3890. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3891. Failed writing message. Aborting connection.
  3892. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3893. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3894. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3895. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3896. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3897. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3898. Failed writing message. Aborting connection.
  3899. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3900. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3901. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3902. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3903. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3904. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3905. Failed writing message. Aborting connection.
  3906. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3907. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3908. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3909. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3910. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3911. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3912. Failed writing message. Aborting connection.
  3913. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3914. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3915. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3916. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3917. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3918. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3919. Failed writing message. Aborting connection.
  3920. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3921. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3922. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3923. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3924. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3925. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3926. Failed writing message. Aborting connection.
  3927. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3928. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3929. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3930. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3931. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3932. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3933. Failed writing message. Aborting connection.
  3934. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3935. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3936. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3937. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3938. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3939. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3940. Failed writing message. Aborting connection.
  3941. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3942. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3943. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3944. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3945. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3946. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3947. Failed writing message. Aborting connection.
  3948. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3949. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3950. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3951. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3952. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3953. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3954. Failed writing message. Aborting connection.
  3955. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3956. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3957. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3958. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3959. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3960. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3961. Failed writing message. Aborting connection.
  3962. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3963. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3964. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3965. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3966. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3967. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3968. Failed writing message. Aborting connection.
  3969. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3970. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3971. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3972. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3973. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3974. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3975. Failed writing message. Aborting connection.
  3976. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3977. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3978. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3979. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3980. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3981. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3982. Failed writing message. Aborting connection.
  3983. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3984. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3985. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3986. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3987. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3988. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3989. Failed writing message. Aborting connection.
  3990. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3991. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3992. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3993. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3994. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3995. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3996. Failed writing message. Aborting connection.
  3997. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3998. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3999. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4000. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4001. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4002. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4003. Failed writing message. Aborting connection.
  4004. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4005. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4006. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4007. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4008. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4009. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4010. Failed writing message. Aborting connection.
  4011. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4012. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4013. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4014. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4015. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4016. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4017. Failed writing message. Aborting connection.
  4018. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4019. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4020. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4021. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4022. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4023. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4024. Failed writing message. Aborting connection.
  4025. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4026. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4027. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4028. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4029. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4030. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4031. Failed writing message. Aborting connection.
  4032. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4033. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4034. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4035. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4036. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4037. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4038. Failed writing message. Aborting connection.
  4039. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4040. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4041. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4042. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4043. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4044. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4045. Failed writing message. Aborting connection.
  4046. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4047. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4048. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4049. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4050. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4051. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4052. Failed writing message. Aborting connection.
  4053. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4054. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4055. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4056. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4057. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4058. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4059. Failed writing message. Aborting connection.
  4060. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4061. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4062. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4063. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4064. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4065. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4066. Failed writing message. Aborting connection.
  4067. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4068. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4069. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4070. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4071. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4072. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4073. Failed writing message. Aborting connection.
  4074. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4075. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4076. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4077. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4078. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4079. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4080. Failed writing message. Aborting connection.
  4081. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4082. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4083. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4084. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4085. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4086. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4087. Failed writing message. Aborting connection.
  4088. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4089. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4090. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4091. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4092. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4093. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4094. Failed writing message. Aborting connection.
  4095. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4096. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4097. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4098. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4099. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4100. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4101. Failed writing message. Aborting connection.
  4102. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4103. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4104. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4105. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4106. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4107. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4108. Failed writing message. Aborting connection.
  4109. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4110. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4111. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4112. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4113. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4114. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4115. Failed writing message. Aborting connection.
  4116. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4117. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4118. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4119. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4120. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4121. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4122. Failed writing message. Aborting connection.
  4123. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4124. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4125. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4126. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4127. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4128. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4129. Failed writing message. Aborting connection.
  4130. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4131. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4132. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4133. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4134. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4135. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4136. Failed writing message. Aborting connection.
  4137. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4138. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4139. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4140. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4141. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4142. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4143. Failed writing message. Aborting connection.
  4144. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4145. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4146. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4147. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4148. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4149. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4150. Failed writing message. Aborting connection.
  4151. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4152. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4153. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4154. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4155. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4156. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4157. Failed writing message. Aborting connection.
  4158. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4159. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4160. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4161. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4162. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4163. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4164. Failed writing message. Aborting connection.
  4165. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4166. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4167. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4168. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4169. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4170. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4171. Failed writing message. Aborting connection.
  4172. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4173. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4174. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4175. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4176. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4177. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4178. Failed writing message. Aborting connection.
  4179. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4180. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4181. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4182. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4183. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4184. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4185. Failed writing message. Aborting connection.
  4186. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4187. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4188. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4189. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4190. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4191. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4192. Failed writing message. Aborting connection.
  4193. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4194. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4195. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4196. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4197. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4198. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4199. Failed writing message. Aborting connection.
  4200. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4201. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4202. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4203. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4204. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4205. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4206. Failed writing message. Aborting connection.
  4207. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4208. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4209. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4210. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4211. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4212. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4213. Failed writing message. Aborting connection.
  4214. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4215. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4216. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4217. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4218. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4219. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4220. Failed writing message. Aborting connection.
  4221. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4222. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4223. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4224. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4225. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4226. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4227. Failed writing message. Aborting connection.
  4228. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4229. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4230. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4231. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4232. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4233. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4234. Failed writing message. Aborting connection.
  4235. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4236. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4237. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4238. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4239. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4240. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4241. Failed writing message. Aborting connection.
  4242. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4243. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4244. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4245. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4246. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4247. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4248. Failed writing message. Aborting connection.
  4249. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4250. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4251. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4252. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4253. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4254. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4255. Failed writing message. Aborting connection.
  4256. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4257. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4258. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4259. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4260. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4261. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4262. Failed writing message. Aborting connection.
  4263. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4264. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4265. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4266. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4267. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4268. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4269. Failed writing message. Aborting connection.
  4270. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4271. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4272. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4273. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4274. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4275. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4276. Failed writing message. Aborting connection.
  4277. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4278. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4279. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4280. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4281. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4282. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4283. Failed writing message. Aborting connection.
  4284. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4285. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4286. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4287. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4288. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4289. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4290. Failed writing message. Aborting connection.
  4291. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4292. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4293. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4294. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4295. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4296. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4297. Failed writing message. Aborting connection.
  4298. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4299. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4300. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4301. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4302. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4303. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4304. Failed writing message. Aborting connection.
  4305. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4306. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4307. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4308. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4309. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4310. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4311. Failed writing message. Aborting connection.
  4312. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4313. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4314. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4315. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4316. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4317. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4318. Failed writing message. Aborting connection.
  4319. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4320. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4321. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4322. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4323. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4324. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4325. Failed writing message. Aborting connection.
  4326. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4327. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4328. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4329. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4330. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4331. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4332. Failed writing message. Aborting connection.
  4333. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4334. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4335. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4336. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4337. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4338. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4339. Failed writing message. Aborting connection.
  4340. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4341. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4342. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4343. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4344. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4345. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4346. Failed writing message. Aborting connection.
  4347. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4348. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4349. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4350. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4351. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4352. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4353. Failed writing message. Aborting connection.
  4354. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4355. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4356. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4357. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4358. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4359. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4360. Failed writing message. Aborting connection.
  4361. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4362. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4363. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4364. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4365. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4366. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4367. Failed writing message. Aborting connection.
  4368. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4369. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4370. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4371. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4372. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4373. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4374. Failed writing message. Aborting connection.
  4375. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4376. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4377. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4378. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4379. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4380. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4381. Failed writing message. Aborting connection.
  4382. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4383. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4384. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4385. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4386. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4387. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4388. Failed writing message. Aborting connection.
  4389. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4390. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4391. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4392. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4393. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4394. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4395. Failed writing message. Aborting connection.
  4396. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4397. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4398. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4399. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4400. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4401. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4402. Failed writing message. Aborting connection.
  4403. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4404. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4405. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4406. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4407. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4408. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4409. Failed writing message. Aborting connection.
  4410. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4411. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4412. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4413. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4414. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4415. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4416. Failed writing message. Aborting connection.
  4417. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4418. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4419. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4420. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4421. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4422. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4423. Failed writing message. Aborting connection.
  4424. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4425. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4426. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4427. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4428. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4429. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4430. Failed writing message. Aborting connection.
  4431. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4432. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4433. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4434. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4435. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4436. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4437. Failed writing message. Aborting connection.
  4438. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4439. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4440. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4441. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4442. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4443. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4444. Failed writing message. Aborting connection.
  4445. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4446. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4447. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4448. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4449. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4450. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4451. Failed writing message. Aborting connection.
  4452. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4453. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4454. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4455. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4456. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4457. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4458. Failed writing message. Aborting connection.
  4459. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4460. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4461. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4462. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4463. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4464. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4465. Failed writing message. Aborting connection.
  4466. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4467. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4468. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4469. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4470. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4471. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4472. Failed writing message. Aborting connection.
  4473. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4474. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4475. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4476. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4477. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4478. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4479. Failed writing message. Aborting connection.
  4480. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4481. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4482. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4483. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4484. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4485. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4486. Failed writing message. Aborting connection.
  4487. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4488. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4489. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4490. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4491. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4492. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4493. Failed writing message. Aborting connection.
  4494. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4495. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4496. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4497. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4498. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4499. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4500. Failed writing message. Aborting connection.
  4501. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4502. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4503. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4504. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4505. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4506. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4507. Failed writing message. Aborting connection.
  4508. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4509. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4510. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4511. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4512. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4513. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4514. Failed writing message. Aborting connection.
  4515. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4516. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4517. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4518. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4519. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4520. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4521. Failed writing message. Aborting connection.
  4522. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4523. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4524. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4525. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4526. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4527. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4528. Failed writing message. Aborting connection.
  4529. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4530. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4531. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4532. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4533. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4534. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4535. Failed writing message. Aborting connection.
  4536. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4537. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4538. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4539. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4540. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4541. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4542. Failed writing message. Aborting connection.
  4543. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4544. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4545. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4546. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4547. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4548. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4549. Failed writing message. Aborting connection.
  4550. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4551. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4552. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4553. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4554. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4555. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4556. Failed writing message. Aborting connection.
  4557. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4558. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4559. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4560. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4561. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4562. [00:14:22] Current: 86565, peak: 91541, connected: 0, disconnected: 3952, rate: -3952/s
  4563. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4564. Failed writing message. Aborting connection.
  4565. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4566. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4567. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4568. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4569. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4570. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  4571. Heartbeat took longer than "00:00:01" at "06/01/2019 00:41:08 +00:00".
  4572. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4573. Failed writing message. Aborting connection.
  4574. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4575. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4576. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4577. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4578. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4579. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4580. Failed writing message. Aborting connection.
  4581. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4582. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4583. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4584. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4585. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4586. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4587. Failed writing message. Aborting connection.
  4588. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4589. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4590. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4591. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4592. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4593. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4594. Failed writing message. Aborting connection.
  4595. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4596. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4597. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4598. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4599. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4600. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4601. Failed writing message. Aborting connection.
  4602. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4603. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4604. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4605. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4606. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4607. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4608. Failed writing message. Aborting connection.
  4609. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4610. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4611. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4612. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4613. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4614. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4615. Failed writing message. Aborting connection.
  4616. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4617. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4618. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4619. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4620. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4621. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4622. Failed writing message. Aborting connection.
  4623. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4624. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4625. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4626. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4627. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4628. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4629. Failed writing message. Aborting connection.
  4630. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4631. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4632. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4633. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4634. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4635. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4636. Failed writing message. Aborting connection.
  4637. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4638. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4639. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4640. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4641. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4642. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4643. Failed writing message. Aborting connection.
  4644. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4645. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4646. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4647. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4648. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4649. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4650. Failed writing message. Aborting connection.
  4651. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4652. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4653. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4654. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4655. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4656. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4657. Failed writing message. Aborting connection.
  4658. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4659. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4660. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4661. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4662. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4663. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4664. Failed writing message. Aborting connection.
  4665. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4666. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4667. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4668. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4669. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4670. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4671. Failed writing message. Aborting connection.
  4672. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4673. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4674. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4675. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4676. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4677. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4678. Failed writing message. Aborting connection.
  4679. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4680. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4681. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4682. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4683. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4684. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4685. Failed writing message. Aborting connection.
  4686. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4687. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4688. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4689. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4690. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4691. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4692. Failed writing message. Aborting connection.
  4693. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4694. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4695. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4696. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4697. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4698. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4699. Failed writing message. Aborting connection.
  4700. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4701. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4702. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4703. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4704. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4705. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4706. Failed writing message. Aborting connection.
  4707. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4708. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4709. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4710. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4711. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4712. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4713. Failed writing message. Aborting connection.
  4714. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4715. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4716. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4717. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4718. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4719. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4720. Failed writing message. Aborting connection.
  4721. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4722. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4723. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4724. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4725. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4726. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4727. Failed writing message. Aborting connection.
  4728. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4729. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4730. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4731. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4732. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4733. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4734. Failed writing message. Aborting connection.
  4735. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4736. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4737. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4738. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4739. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4740. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4741. Failed writing message. Aborting connection.
  4742. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4743. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4744. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4745. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4746. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4747. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4748. Failed writing message. Aborting connection.
  4749. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4750. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4751. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4752. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4753. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4754. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4755. Failed writing message. Aborting connection.
  4756. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4757. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4758. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4759. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4760. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4761. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4762. Failed writing message. Aborting connection.
  4763. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4764. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4765. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4766. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4767. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4768. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4769. Failed writing message. Aborting connection.
  4770. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4771. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4772. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4773. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4774. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4775. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4776. Failed writing message. Aborting connection.
  4777. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4778. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4779. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4780. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4781. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4782. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4783. Failed writing message. Aborting connection.
  4784. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4785. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4786. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4787. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4788. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4789. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4790. Failed writing message. Aborting connection.
  4791. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4792. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4793. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4794. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4795. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4796. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4797. Failed writing message. Aborting connection.
  4798. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4799. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4800. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4801. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4802. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4803. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4804. Failed writing message. Aborting connection.
  4805. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4806. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4807. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4808. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4809. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4810. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4811. Failed writing message. Aborting connection.
  4812. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4813. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4814. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4815. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4816. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4817. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4818. Failed writing message. Aborting connection.
  4819. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4820. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4821. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4822. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4823. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4824. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4825. Failed writing message. Aborting connection.
  4826. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4827. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4828. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4829. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4830. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4831. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4832. Failed writing message. Aborting connection.
  4833. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4834. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4835. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4836. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4837. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4838. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4839. Failed writing message. Aborting connection.
  4840. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4841. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4842. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4843. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4844. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4845. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4846. Failed writing message. Aborting connection.
  4847. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4848. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4849. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4850. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4851. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4852. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4853. Failed writing message. Aborting connection.
  4854. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4855. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4856. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4857. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4858. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4859. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4860. Failed writing message. Aborting connection.
  4861. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4862. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4863. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4864. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4865. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4866. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4867. Failed writing message. Aborting connection.
  4868. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4869. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4870. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4871. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4872. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4873. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4874. Failed writing message. Aborting connection.
  4875. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4876. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4877. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4878. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4879. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4880. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4881. Failed writing message. Aborting connection.
  4882. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4883. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4884. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4885. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4886. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4887. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4888. Failed writing message. Aborting connection.
  4889. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4890. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4891. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4892. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4893. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4894. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4895. Failed writing message. Aborting connection.
  4896. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4897. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4898. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4899. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4900. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4901. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4902. Failed writing message. Aborting connection.
  4903. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4904. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4905. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4906. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4907. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4908. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4909. Failed writing message. Aborting connection.
  4910. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4911. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4912. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4913. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4914. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4915. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4916. Failed writing message. Aborting connection.
  4917. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4918. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4919. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4920. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4921. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4922. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4923. Failed writing message. Aborting connection.
  4924. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4925. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4926. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4927. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4928. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4929. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4930. Failed writing message. Aborting connection.
  4931. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4932. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4933. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4934. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4935. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4936. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4937. Failed writing message. Aborting connection.
  4938. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4939. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4940. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4941. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4942. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4943. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4944. Failed writing message. Aborting connection.
  4945. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4946. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4947. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4948. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4949. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4950. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4951. Failed writing message. Aborting connection.
  4952. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4953. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4954. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4955. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4956. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4957. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4958. Failed writing message. Aborting connection.
  4959. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4960. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4961. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4962. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4963. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4964. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4965. Failed writing message. Aborting connection.
  4966. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4967. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4968. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4969. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4970. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4971. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4972. Failed writing message. Aborting connection.
  4973. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4974. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4975. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4976. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4977. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4978. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4979. Failed writing message. Aborting connection.
  4980. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4981. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4982. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4983. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4984. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4985. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4986. Failed writing message. Aborting connection.
  4987. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4988. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4989. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4990. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4991. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4992. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4993. Failed writing message. Aborting connection.
  4994. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4995. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4996. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4997. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4998. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4999. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5000. Failed writing message. Aborting connection.
  5001. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5002. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5003. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5004. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5005. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5006. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5007. Failed writing message. Aborting connection.
  5008. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5009. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5010. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5011. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5012. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5013. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5014. Failed writing message. Aborting connection.
  5015. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5016. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5017. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5018. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5019. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5020. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5021. Failed writing message. Aborting connection.
  5022. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5023. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5024. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5025. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5026. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5027. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5028. Failed writing message. Aborting connection.
  5029. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5030. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5031. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5032. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5033. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5034. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5035. Failed writing message. Aborting connection.
  5036. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5037. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5038. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5039. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5040. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5041. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5042. Failed writing message. Aborting connection.
  5043. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5044. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5045. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5046. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5047. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5048. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5049. Failed writing message. Aborting connection.
  5050. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5051. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5052. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5053. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5054. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5055. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5056. Failed writing message. Aborting connection.
  5057. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5058. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5059. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5060. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5061. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5062. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5063. Failed writing message. Aborting connection.
  5064. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5065. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5066. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5067. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5068. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5069. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5070. Failed writing message. Aborting connection.
  5071. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5072. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5073. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5074. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5075. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5076. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5077. Failed writing message. Aborting connection.
  5078. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5079. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5080. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5081. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5082. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5083. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5084. Failed writing message. Aborting connection.
  5085. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5086. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5087. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5088. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5089. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5090. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5091. Failed writing message. Aborting connection.
  5092. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5093. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5094. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5095. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5096. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5097. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5098. Failed writing message. Aborting connection.
  5099. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5100. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5101. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5102. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5103. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5104. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5105. Failed writing message. Aborting connection.
  5106. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5107. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5108. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5109. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5110. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5111. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5112. Failed writing message. Aborting connection.
  5113. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5114. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5115. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5116. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5117. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5118. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5119. Failed writing message. Aborting connection.
  5120. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5121. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5122. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5123. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5124. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5125. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5126. Failed writing message. Aborting connection.
  5127. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5128. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5129. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5130. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5131. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5132. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5133. Failed writing message. Aborting connection.
  5134. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5135. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5136. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5137. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5138. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5139. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5140. Failed writing message. Aborting connection.
  5141. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5142. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5143. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5144. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5145. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5146. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5147. Failed writing message. Aborting connection.
  5148. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5149. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5150. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5151. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5152. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5153. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5154. Failed writing message. Aborting connection.
  5155. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5156. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5157. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5158. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5159. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5160. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5161. Failed writing message. Aborting connection.
  5162. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5163. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5164. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5165. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5166. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5167. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5168. Failed writing message. Aborting connection.
  5169. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5170. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5171. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5172. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5173. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5174. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5175. Failed writing message. Aborting connection.
  5176. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5177. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5178. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5179. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5180. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5181. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5182. Failed writing message. Aborting connection.
  5183. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5184. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5185. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5186. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5187. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5188. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5189. Failed writing message. Aborting connection.
  5190. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5191. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5192. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5193. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5194. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5195. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5196. Failed writing message. Aborting connection.
  5197. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5198. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5199. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5200. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5201. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5202. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5203. Failed writing message. Aborting connection.
  5204. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5205. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5206. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5207. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5208. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5209. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5210. Failed writing message. Aborting connection.
  5211. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5212. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5213. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5214. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5215. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5216. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5217. Failed writing message. Aborting connection.
  5218. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5219. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5220. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5221. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5222. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5223. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5224. Failed writing message. Aborting connection.
  5225. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5226. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5227. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5228. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5229. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5230. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5231. Failed writing message. Aborting connection.
  5232. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5233. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5234. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5235. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5236. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5237. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5238. Failed writing message. Aborting connection.
  5239. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5240. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5241. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5242. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5243. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5244. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5245. Failed writing message. Aborting connection.
  5246. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5247. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5248. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5249. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5250. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5251. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5252. Failed writing message. Aborting connection.
  5253. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5254. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5255. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5256. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5257. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5258. [00:14:24] Current: 86564, peak: 91541, connected: 0, disconnected: 1, rate: -1/s
  5259. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5260. Failed writing message. Aborting connection.
  5261. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5262. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5263. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5264. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5265. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5266. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5267. Failed writing message. Aborting connection.
  5268. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5269. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5270. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5271. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5272. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5273. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5274. Failed writing message. Aborting connection.
  5275. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5276. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5277. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5278. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5279. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5280. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5281. Failed writing message. Aborting connection.
  5282. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5283. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5284. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5285. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5286. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5287. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5288. Failed writing message. Aborting connection.
  5289. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5290. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5291. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5292. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5293. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5294. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5295. Failed writing message. Aborting connection.
  5296. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5297. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5298. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5299. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5300. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5301. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5302. Failed writing message. Aborting connection.
  5303. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5304. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5305. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5306. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5307. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5308. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5309. Failed writing message. Aborting connection.
  5310. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5311. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5312. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5313. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5314. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5315. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5316. Failed writing message. Aborting connection.
  5317. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5318. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5319. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5320. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5321. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5322. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5323. Failed writing message. Aborting connection.
  5324. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5325. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5326. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5327. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5328. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5329. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5330. Failed writing message. Aborting connection.
  5331. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5332. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5333. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5334. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5335. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5336. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5337. Failed writing message. Aborting connection.
  5338. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5339. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5340. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5341. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5342. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5343. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5344. Failed writing message. Aborting connection.
  5345. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5346. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5347. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5348. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5349. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5350. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5351. Failed writing message. Aborting connection.
  5352. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5353. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5354. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5355. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5356. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5357. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5358. Failed writing message. Aborting connection.
  5359. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5360. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5361. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5362. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5363. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5364. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5365. Failed writing message. Aborting connection.
  5366. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5367. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5368. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5369. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5370. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5371. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5372. Failed writing message. Aborting connection.
  5373. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5374. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5375. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5376. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5377. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5378. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5379. Failed writing message. Aborting connection.
  5380. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5381. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5382. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5383. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5384. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5385. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5386. Failed writing message. Aborting connection.
  5387. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5388. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5389. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5390. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5391. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5392. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5393. Failed writing message. Aborting connection.
  5394. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5395. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5396. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5397. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5398. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5399. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5400. Failed writing message. Aborting connection.
  5401. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5402. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5403. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5404. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5405. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5406. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5407. Failed writing message. Aborting connection.
  5408. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5409. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5410. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5411. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5412. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5413. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5414. Failed writing message. Aborting connection.
  5415. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5416. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5417. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5418. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5419. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5420. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5421. Failed writing message. Aborting connection.
  5422. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5423. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5424. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5425. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5426. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5427. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5428. Failed writing message. Aborting connection.
  5429. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5430. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5431. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5432. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5433. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5434. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5435. Failed writing message. Aborting connection.
  5436. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5437. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5438. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5439. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5440. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5441. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5442. Failed writing message. Aborting connection.
  5443. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5444. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5445. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5446. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5447. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5448. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5449. Failed writing message. Aborting connection.
  5450. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5451. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5452. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5453. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5454. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5455. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5456. Failed writing message. Aborting connection.
  5457. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5458. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5459. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5460. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5461. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5462. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5463. Failed writing message. Aborting connection.
  5464. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5465. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5466. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5467. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5468. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5469. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5470. Failed writing message. Aborting connection.
  5471. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5472. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5473. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5474. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5475. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5476. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5477. Failed writing message. Aborting connection.
  5478. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5479. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5480. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5481. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5482. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5483. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5484. Failed writing message. Aborting connection.
  5485. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5486. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5487. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5488. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5489. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5490. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5491. Failed writing message. Aborting connection.
  5492. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5493. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5494. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5495. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5496. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5497. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5498. Failed writing message. Aborting connection.
  5499. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5500. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5501. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5502. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5503. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5504. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5505. Failed writing message. Aborting connection.
  5506. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5507. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5508. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5509. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5510. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5511. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5512. Failed writing message. Aborting connection.
  5513. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5514. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5515. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5516. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5517. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5518. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5519. Failed writing message. Aborting connection.
  5520. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5521. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5522. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5523. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5524. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5525. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5526. Failed writing message. Aborting connection.
  5527. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5528. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5529. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5530. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5531. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5532. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5533. Failed writing message. Aborting connection.
  5534. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5535. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5536. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5537. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5538. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5539. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5540. Failed writing message. Aborting connection.
  5541. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5542. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5543. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5544. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5545. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5546. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5547. Failed writing message. Aborting connection.
  5548. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5549. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5550. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5551. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5552. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5553. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5554. Failed writing message. Aborting connection.
  5555. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5556. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5557. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5558. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5559. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5560. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5561. Failed writing message. Aborting connection.
  5562. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5563. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5564. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5565. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5566. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5567. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5568. Failed writing message. Aborting connection.
  5569. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5570. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5571. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5572. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5573. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5574. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5575. Failed writing message. Aborting connection.
  5576. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5577. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5578. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5579. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5580. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5581. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5582. Failed writing message. Aborting connection.
  5583. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5584. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5585. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5586. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5587. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5588. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5589. Failed writing message. Aborting connection.
  5590. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5591. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5592. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5593. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5594. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5595. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5596. Failed writing message. Aborting connection.
  5597. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5598. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5599. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5600. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5601. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5602. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5603. Failed writing message. Aborting connection.
  5604. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5605. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5606. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5607. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5608. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5609. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5610. Failed writing message. Aborting connection.
  5611. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5612. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5613. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5614. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5615. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5616. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5617. Failed writing message. Aborting connection.
  5618. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5619. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5620. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5621. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5622. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5623. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5624. Failed writing message. Aborting connection.
  5625. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5626. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5627. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5628. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5629. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5630. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5631. Failed writing message. Aborting connection.
  5632. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5633. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5634. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5635. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5636. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5637. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5638. Failed writing message. Aborting connection.
  5639. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5640. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5641. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5642. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5643. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5644. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5645. Failed writing message. Aborting connection.
  5646. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5647. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5648. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5649. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5650. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5651. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5652. Failed writing message. Aborting connection.
  5653. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5654. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5655. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5656. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5657. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5658. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5659. Failed writing message. Aborting connection.
  5660. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5661. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5662. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5663. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5664. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5665. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5666. Failed writing message. Aborting connection.
  5667. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5668. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5669. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5670. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5671. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5672. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5673. Failed writing message. Aborting connection.
  5674. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5675. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5676. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5677. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5678. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5679. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5680. Failed writing message. Aborting connection.
  5681. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5682. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5683. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5684. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5685. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5686. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5687. Failed writing message. Aborting connection.
  5688. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5689. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5690. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5691. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5692. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5693. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5694. Failed writing message. Aborting connection.
  5695. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5696. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5697. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5698. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5699. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5700. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5701. Failed writing message. Aborting connection.
  5702. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5703. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5704. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5705. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5706. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5707. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5708. Failed writing message. Aborting connection.
  5709. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5710. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5711. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5712. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5713. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5714. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5715. Failed writing message. Aborting connection.
  5716. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5717. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5718. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5719. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5720. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5721. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5722. Failed writing message. Aborting connection.
  5723. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5724. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5725. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5726. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5727. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5728. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5729. Failed writing message. Aborting connection.
  5730. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5731. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5732. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5733. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5734. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5735. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5736. Failed writing message. Aborting connection.
  5737. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5738. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5739. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5740. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5741. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5742. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5743. Failed writing message. Aborting connection.
  5744. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5745. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5746. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5747. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5748. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5749. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5750. Failed writing message. Aborting connection.
  5751. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5752. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5753. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5754. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5755. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5756. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5757. Failed writing message. Aborting connection.
  5758. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5759. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5760. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5761. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5762. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5763. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5764. Failed writing message. Aborting connection.
  5765. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5766. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5767. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5768. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5769. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5770. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5771. Failed writing message. Aborting connection.
  5772. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5773. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5774. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5775. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5776. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5777. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5778. Failed writing message. Aborting connection.
  5779. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5780. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5781. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5782. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5783. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5784. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5785. Failed writing message. Aborting connection.
  5786. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5787. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5788. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5789. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5790. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5791. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5792. Failed writing message. Aborting connection.
  5793. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5794. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5795. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5796. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5797. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5798. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5799. Failed writing message. Aborting connection.
  5800. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5801. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5802. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5803. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5804. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5805. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5806. Failed writing message. Aborting connection.
  5807. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5808. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5809. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5810. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5811. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5812. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5813. Failed writing message. Aborting connection.
  5814. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5815. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5816. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5817. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5818. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5819. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5820. Failed writing message. Aborting connection.
  5821. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5822. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5823. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5824. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5825. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5826. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5827. Failed writing message. Aborting connection.
  5828. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5829. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5830. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5831. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5832. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5833. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5834. Failed writing message. Aborting connection.
  5835. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5836. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5837. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5838. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5839. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5840. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5841. Failed writing message. Aborting connection.
  5842. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5843. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5844. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5845. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5846. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5847. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5848. Failed writing message. Aborting connection.
  5849. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5850. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5851. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5852. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5853. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5854. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5855. Failed writing message. Aborting connection.
  5856. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5857. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5858. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5859. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5860. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5861. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5862. Failed writing message. Aborting connection.
  5863. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5864. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5865. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5866. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5867. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5868. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5869. Failed writing message. Aborting connection.
  5870. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5871. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5872. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5873. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5874. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5875. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5876. Failed writing message. Aborting connection.
  5877. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5878. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5879. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5880. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5881. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5882. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5883. Failed writing message. Aborting connection.
  5884. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5885. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5886. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5887. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5888. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5889. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5890. Failed writing message. Aborting connection.
  5891. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5892. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5893. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5894. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5895. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5896. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5897. Failed writing message. Aborting connection.
  5898. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5899. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5900. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5901. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5902. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5903. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5904. Failed writing message. Aborting connection.
  5905. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5906. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5907. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5908. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5909. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5910. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5911. Failed writing message. Aborting connection.
  5912. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5913. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5914. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5915. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5916. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5917. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5918. Failed writing message. Aborting connection.
  5919. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5920. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5921. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5922. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5923. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5924. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5925. Failed writing message. Aborting connection.
  5926. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5927. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5928. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5929. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5930. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5931. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5932. Failed writing message. Aborting connection.
  5933. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5934. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5935. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5936. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5937. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5938. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5939. Failed writing message. Aborting connection.
  5940. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5941. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5942. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5943. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5944. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5945. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5946. Failed writing message. Aborting connection.
  5947. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5948. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5949. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5950. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5951. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5952. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5953. Failed writing message. Aborting connection.
  5954. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5955. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5956. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5957. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5958. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5959. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5960. Failed writing message. Aborting connection.
  5961. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5962. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5963. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5964. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5965. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5966. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5967. Failed writing message. Aborting connection.
  5968. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5969. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5970. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5971. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5972. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5973. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5974. Failed writing message. Aborting connection.
  5975. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5976. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5977. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5978. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5979. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5980. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5981. Failed writing message. Aborting connection.
  5982. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5983. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5984. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5985. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5986. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5987. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5988. Failed writing message. Aborting connection.
  5989. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5990. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5991. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5992. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5993. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5994. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5995. Failed writing message. Aborting connection.
  5996. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5997. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5998. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5999. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6000. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6001. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6002. Failed writing message. Aborting connection.
  6003. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6004. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6005. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6006. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6007. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6008. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6009. Failed writing message. Aborting connection.
  6010. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6011. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6012. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6013. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6014. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6015. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6016. Failed writing message. Aborting connection.
  6017. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6018. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6019. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6020. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6021. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6022. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6023. Failed writing message. Aborting connection.
  6024. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6025. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6026. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6027. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6028. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6029. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6030. Failed writing message. Aborting connection.
  6031. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6032. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6033. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6034. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6035. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6036. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6037. Failed writing message. Aborting connection.
  6038. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6039. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6040. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6041. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6042. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6043. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6044. Failed writing message. Aborting connection.
  6045. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6046. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6047. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6048. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6049. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6050. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6051. Failed writing message. Aborting connection.
  6052. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6053. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6054. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6055. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6056. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6057. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6058. Failed writing message. Aborting connection.
  6059. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6060. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6061. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6062. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6063. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6064. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6065. Failed writing message. Aborting connection.
  6066. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6067. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6068. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6069. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6070. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6071. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6072. Failed writing message. Aborting connection.
  6073. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6074. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6075. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6076. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6077. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6078. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6079. Failed writing message. Aborting connection.
  6080. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6081. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6082. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6083. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6084. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6085. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6086. Failed writing message. Aborting connection.
  6087. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6088. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6089. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6090. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6091. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6092. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6093. Failed writing message. Aborting connection.
  6094. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6095. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6096. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6097. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6098. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6099. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6100. Failed writing message. Aborting connection.
  6101. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6102. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6103. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6104. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6105. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6106. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6107. Failed writing message. Aborting connection.
  6108. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6109. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6110. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6111. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6112. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6113. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6114. Failed writing message. Aborting connection.
  6115. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6116. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6117. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6118. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6119. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6120. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6121. Failed writing message. Aborting connection.
  6122. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6123. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6124. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6125. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6126. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6127. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6128. Failed writing message. Aborting connection.
  6129. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6130. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6131. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6132. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6133. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6134. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6135. Failed writing message. Aborting connection.
  6136. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6137. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6138. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6139. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6140. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6141. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6142. Failed writing message. Aborting connection.
  6143. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6144. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6145. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6146. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6147. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6148. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6149. Failed writing message. Aborting connection.
  6150. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6151. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6152. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6153. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6154. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6155. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6156. Failed writing message. Aborting connection.
  6157. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6158. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6159. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6160. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6161. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6162. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6163. Failed writing message. Aborting connection.
  6164. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6165. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6166. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6167. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6168. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6169. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6170. Failed writing message. Aborting connection.
  6171. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6172. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6173. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6174. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6175. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6176. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6177. Failed writing message. Aborting connection.
  6178. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6179. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6180. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6181. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6182. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6183. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6184. Failed writing message. Aborting connection.
  6185. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6186. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6187. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6188. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6189. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6190. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6191. Failed writing message. Aborting connection.
  6192. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6193. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6194. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6195. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6196. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6197. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6198. Failed writing message. Aborting connection.
  6199. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6200. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6201. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6202. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6203. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6204. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6205. Failed writing message. Aborting connection.
  6206. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6207. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6208. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6209. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6210. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6211. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6212. Failed writing message. Aborting connection.
  6213. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6214. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6215. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6216. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6217. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6218. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6219. Failed writing message. Aborting connection.
  6220. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6221. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6222. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6223. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6224. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6225. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6226. Failed writing message. Aborting connection.
  6227. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6228. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6229. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6230. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6231. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6232. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6233. Failed writing message. Aborting connection.
  6234. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6235. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6236. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6237. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6238. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6239. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6240. Failed writing message. Aborting connection.
  6241. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6242. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6243. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6244. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6245. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6246. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6247. Failed writing message. Aborting connection.
  6248. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6249. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6250. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6251. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6252. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6253. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6254. Failed writing message. Aborting connection.
  6255. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6256. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6257. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6258. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6259. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6260. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6261. Failed writing message. Aborting connection.
  6262. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6263. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6264. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6265. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6266. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6267. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6268. Failed writing message. Aborting connection.
  6269. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6270. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6271. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6272. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6273. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6274. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6275. Failed writing message. Aborting connection.
  6276. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6277. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6278. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6279. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6280. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6281. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6282. Failed writing message. Aborting connection.
  6283. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6284. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6285. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6286. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6287. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6288. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6289. Failed writing message. Aborting connection.
  6290. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6291. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6292. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6293. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6294. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6295. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6296. Failed writing message. Aborting connection.
  6297. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6298. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6299. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6300. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6301. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6302. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6303. Failed writing message. Aborting connection.
  6304. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6305. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6306. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6307. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6308. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6309. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6310. Failed writing message. Aborting connection.
  6311. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6312. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6313. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6314. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6315. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6316. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6317. Failed writing message. Aborting connection.
  6318. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6319. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6320. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6321. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6322. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6323. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6324. Failed writing message. Aborting connection.
  6325. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6326. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6327. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6328. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6329. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6330. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6331. Failed writing message. Aborting connection.
  6332. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6333. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6334. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6335. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6336. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6337. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6338. Failed writing message. Aborting connection.
  6339. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6340. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6341. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6342. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6343. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6344. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6345. Failed writing message. Aborting connection.
  6346. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6347. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6348. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6349. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6350. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6351. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6352. Failed writing message. Aborting connection.
  6353. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6354. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6355. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6356. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6357. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6358. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6359. Failed writing message. Aborting connection.
  6360. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6361. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6362. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6363. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6364. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6365. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6366. Failed writing message. Aborting connection.
  6367. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6368. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6369. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6370. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6371. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6372. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6373. Failed writing message. Aborting connection.
  6374. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6375. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6376. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6377. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6378. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6379. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6380. Failed writing message. Aborting connection.
  6381. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6382. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6383. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6384. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6385. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6386. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6387. Failed writing message. Aborting connection.
  6388. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6389. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6390. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6391. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6392. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6393. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6394. Failed writing message. Aborting connection.
  6395. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6396. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6397. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6398. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6399. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6400. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6401. Failed writing message. Aborting connection.
  6402. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6403. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6404. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6405. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6406. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6407. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6408. Failed writing message. Aborting connection.
  6409. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6410. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6411. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6412. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6413. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6414. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6415. Failed writing message. Aborting connection.
  6416. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6417. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6418. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6419. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6420. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6421. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6422. Failed writing message. Aborting connection.
  6423. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6424. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6425. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6426. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6427. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6428. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6429. Failed writing message. Aborting connection.
  6430. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6431. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6432. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6433. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6434. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6435. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6436. Failed writing message. Aborting connection.
  6437. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6438. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6439. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6440. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6441. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6442. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6443. Failed writing message. Aborting connection.
  6444. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6445. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6446. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6447. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6448. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6449. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6450. Failed writing message. Aborting connection.
  6451. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6452. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6453. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6454. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6455. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6456. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6457. Failed writing message. Aborting connection.
  6458. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6459. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6460. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6461. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6462. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6463. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6464. Failed writing message. Aborting connection.
  6465. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6466. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6467. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6468. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6469. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6470. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6471. Failed writing message. Aborting connection.
  6472. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6473. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6474. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6475. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6476. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6477. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6478. Failed writing message. Aborting connection.
  6479. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6480. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6481. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6482. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6483. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6484. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6485. Failed writing message. Aborting connection.
  6486. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6487. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6488. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6489. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6490. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6491. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6492. Failed writing message. Aborting connection.
  6493. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6494. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6495. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6496. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6497. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6498. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6499. Failed writing message. Aborting connection.
  6500. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6501. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6502. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6503. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6504. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6505. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6506. Failed writing message. Aborting connection.
  6507. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6508. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6509. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6510. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6511. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6512. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6513. Failed writing message. Aborting connection.
  6514. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6515. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6516. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6517. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6518. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6519. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6520. Failed writing message. Aborting connection.
  6521. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6522. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6523. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6524. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6525. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6526. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6527. Failed writing message. Aborting connection.
  6528. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6529. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6530. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6531. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6532. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6533. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6534. Failed writing message. Aborting connection.
  6535. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6536. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6537. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6538. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6539. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6540. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6541. Failed writing message. Aborting connection.
  6542. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6543. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6544. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6545. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6546. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6547. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6548. Failed writing message. Aborting connection.
  6549. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6550. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6551. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6552. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6553. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6554. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6555. Failed writing message. Aborting connection.
  6556. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6557. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6558. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6559. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6560. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6561. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6562. Failed writing message. Aborting connection.
  6563. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6564. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6565. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6566. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6567. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6568. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6569. Failed writing message. Aborting connection.
  6570. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6571. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6572. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6573. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6574. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6575. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6576. Failed writing message. Aborting connection.
  6577. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6578. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6579. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6580. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6581. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6582. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6583. Failed writing message. Aborting connection.
  6584. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6585. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6586. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6587. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6588. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6589. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6590. Failed writing message. Aborting connection.
  6591. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6592. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6593. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6594. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6595. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6596. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6597. Failed writing message. Aborting connection.
  6598. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6599. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6600. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6601. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6602. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6603. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6604. Failed writing message. Aborting connection.
  6605. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6606. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6607. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6608. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6609. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6610. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6611. Failed writing message. Aborting connection.
  6612. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6613. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6614. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6615. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6616. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6617. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6618. Failed writing message. Aborting connection.
  6619. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6620. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6621. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6622. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6623. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6624. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6625. Failed writing message. Aborting connection.
  6626. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6627. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6628. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6629. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6630. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6631. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6632. Failed writing message. Aborting connection.
  6633. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6634. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6635. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6636. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6637. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6638. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6639. Failed writing message. Aborting connection.
  6640. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6641. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6642. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6643. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6644. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6645. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6646. Failed writing message. Aborting connection.
  6647. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6648. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6649. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6650. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6651. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6652. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6653. Failed writing message. Aborting connection.
  6654. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6655. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6656. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6657. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6658. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6659. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6660. Failed writing message. Aborting connection.
  6661. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6662. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6663. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6664. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6665. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6666. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6667. Failed writing message. Aborting connection.
  6668. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6669. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6670. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6671. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6672. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6673. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6674. Failed writing message. Aborting connection.
  6675. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6676. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6677. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6678. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6679. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6680. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6681. Failed writing message. Aborting connection.
  6682. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6683. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6684. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6685. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6686. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6687. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6688. Failed writing message. Aborting connection.
  6689. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6690. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6691. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6692. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6693. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6694. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6695. Failed writing message. Aborting connection.
  6696. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6697. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6698. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6699. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6700. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6701. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6702. Failed writing message. Aborting connection.
  6703. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6704. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6705. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6706. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6707. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6708. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6709. Failed writing message. Aborting connection.
  6710. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6711. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6712. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6713. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6714. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6715. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6716. Failed writing message. Aborting connection.
  6717. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6718. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6719. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6720. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6721. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6722. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6723. Failed writing message. Aborting connection.
  6724. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6725. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6726. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6727. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6728. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6729. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6730. Failed writing message. Aborting connection.
  6731. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6732. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6733. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6734. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6735. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6736. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6737. Failed writing message. Aborting connection.
  6738. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6739. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6740. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6741. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6742. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6743. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6744. Failed writing message. Aborting connection.
  6745. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6746. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6747. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6748. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6749. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6750. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6751. Failed writing message. Aborting connection.
  6752. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6753. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6754. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6755. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6756. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6757. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6758. Failed writing message. Aborting connection.
  6759. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6760. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6761. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6762. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6763. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6764. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6765. Failed writing message. Aborting connection.
  6766. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6767. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6768. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6769. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6770. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6771. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6772. Failed writing message. Aborting connection.
  6773. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6774. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6775. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6776. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6777. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6778. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6779. Failed writing message. Aborting connection.
  6780. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6781. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6782. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6783. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6784. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6785. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6786. Failed writing message. Aborting connection.
  6787. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6788. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6789. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6790. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6791. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6792. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6793. Failed writing message. Aborting connection.
  6794. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6795. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6796. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6797. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6798. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6799. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6800. Failed writing message. Aborting connection.
  6801. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6802. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6803. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6804. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6805. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6806. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6807. Failed writing message. Aborting connection.
  6808. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6809. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6810. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6811. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6812. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6813. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6814. Failed writing message. Aborting connection.
  6815. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6816. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6817. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6818. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6819. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6820. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6821. Failed writing message. Aborting connection.
  6822. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6823. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6824. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6825. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6826. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6827. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6828. Failed writing message. Aborting connection.
  6829. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6830. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6831. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6832. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6833. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6834. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6835. Failed writing message. Aborting connection.
  6836. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6837. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6838. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6839. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6840. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6841. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6842. Failed writing message. Aborting connection.
  6843. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6844. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6845. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6846. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6847. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6848. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6849. Failed writing message. Aborting connection.
  6850. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6851. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6852. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6853. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6854. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6855. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6856. Failed writing message. Aborting connection.
  6857. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6858. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6859. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6860. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6861. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6862. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6863. Failed writing message. Aborting connection.
  6864. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6865. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6866. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6867. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6868. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6869. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6870. Failed writing message. Aborting connection.
  6871. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6872. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6873. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6874. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6875. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6876. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6877. Failed writing message. Aborting connection.
  6878. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6879. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6880. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6881. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6882. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6883. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6884. Failed writing message. Aborting connection.
  6885. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6886. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6887. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6888. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6889. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6890. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6891. Failed writing message. Aborting connection.
  6892. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6893. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6894. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6895. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6896. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6897. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6898. Failed writing message. Aborting connection.
  6899. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6900. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6901. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6902. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6903. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6904. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6905. Failed writing message. Aborting connection.
  6906. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6907. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6908. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6909. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6910. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6911. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6912. Failed writing message. Aborting connection.
  6913. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6914. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6915. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6916. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6917. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6918. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6919. Failed writing message. Aborting connection.
  6920. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6921. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6922. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6923. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6924. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6925. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6926. Failed writing message. Aborting connection.
  6927. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6928. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6929. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6930. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6931. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6932. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6933. Failed writing message. Aborting connection.
  6934. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6935. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6936. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6937. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6938. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6939. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6940. Failed writing message. Aborting connection.
  6941. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6942. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6943. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6944. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6945. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6946. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6947. Failed writing message. Aborting connection.
  6948. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6949. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6950. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6951. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6952. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6953. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6954. Failed writing message. Aborting connection.
  6955. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6956. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6957. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6958. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6959. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6960. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6961. Failed writing message. Aborting connection.
  6962. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6963. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6964. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6965. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6966. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6967. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6968. Failed writing message. Aborting connection.
  6969. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6970. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6971. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6972. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6973. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6974. [00:14:25] Current: 86439, peak: 91541, connected: 0, disconnected: 125, rate: -125/s
  6975. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6976. Failed writing message. Aborting connection.
  6977. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6978. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6979. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6980. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6981. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6982. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6983. Failed writing message. Aborting connection.
  6984. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6985. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6986. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6987. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6988. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6989. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6990. Failed writing message. Aborting connection.
  6991. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6992. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6993. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6994. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6995. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6996. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6997. Failed writing message. Aborting connection.
  6998. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6999. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7000. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7001. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7002. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7003. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7004. Failed writing message. Aborting connection.
  7005. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7006. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7007. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7008. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7009. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7010. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7011. Failed writing message. Aborting connection.
  7012. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7013. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7014. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7015. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7016. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7017. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7018. Failed writing message. Aborting connection.
  7019. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7020. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7021. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7022. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7023. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7024. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7025. Failed writing message. Aborting connection.
  7026. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7027. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7028. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7029. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7030. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7031. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7032. Failed writing message. Aborting connection.
  7033. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7034. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7035. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7036. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7037. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7038. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7039. Failed writing message. Aborting connection.
  7040. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7041. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7042. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7043. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7044. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7045. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7046. Failed writing message. Aborting connection.
  7047. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7048. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7049. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7050. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7051. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7052. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7053. Failed writing message. Aborting connection.
  7054. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7055. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7056. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7057. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7058. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7059. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7060. Failed writing message. Aborting connection.
  7061. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7062. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7063. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7064. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7065. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7066. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7067. Failed writing message. Aborting connection.
  7068. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7069. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7070. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7071. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7072. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7073. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7074. Failed writing message. Aborting connection.
  7075. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7076. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7077. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7078. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7079. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7080. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7081. Failed writing message. Aborting connection.
  7082. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7083. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7084. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7085. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7086. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7087. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7088. Failed writing message. Aborting connection.
  7089. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7090. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7091. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7092. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7093. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7094. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7095. Failed writing message. Aborting connection.
  7096. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7097. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7098. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7099. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7100. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7101. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7102. Failed writing message. Aborting connection.
  7103. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7104. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7105. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7106. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7107. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7108. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7109. Failed writing message. Aborting connection.
  7110. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7111. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7112. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7113. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7114. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7115. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7116. Failed writing message. Aborting connection.
  7117. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7118. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7119. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7120. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7121. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7122. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7123. Failed writing message. Aborting connection.
  7124. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7125. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7126. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7127. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7128. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7129. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7130. Failed writing message. Aborting connection.
  7131. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7132. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7133. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7134. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7135. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7136. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7137. Failed writing message. Aborting connection.
  7138. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7139. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7140. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7141. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7142. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7143. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7144. Failed writing message. Aborting connection.
  7145. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7146. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7147. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7148. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7149. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7150. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7151. Failed writing message. Aborting connection.
  7152. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7153. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7154. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7155. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7156. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7157. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7158. Failed writing message. Aborting connection.
  7159. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7160. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7161. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7162. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7163. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7164. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7165. Failed writing message. Aborting connection.
  7166. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7167. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7168. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7169. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7170. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7171. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7172. Failed writing message. Aborting connection.
  7173. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7174. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7175. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7176. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7177. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7178. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7179. Failed writing message. Aborting connection.
  7180. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7181. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7182. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7183. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7184. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7185. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7186. Failed writing message. Aborting connection.
  7187. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7188. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7189. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7190. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7191. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7192. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7193. Failed writing message. Aborting connection.
  7194. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7195. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7196. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7197. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7198. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7199. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7200. Failed writing message. Aborting connection.
  7201. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7202. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7203. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7204. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7205. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7206. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7207. Failed writing message. Aborting connection.
  7208. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7209. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7210. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7211. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7212. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7213. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7214. Failed writing message. Aborting connection.
  7215. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7216. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7217. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7218. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7219. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7220. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7221. Failed writing message. Aborting connection.
  7222. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7223. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7224. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7225. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7226. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7227. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7228. Failed writing message. Aborting connection.
  7229. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7230. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7231. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7232. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7233. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7234. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7235. Failed writing message. Aborting connection.
  7236. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7237. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7238. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7239. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7240. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7241. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7242. Failed writing message. Aborting connection.
  7243. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7244. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7245. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7246. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7247. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7248. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7249. Failed writing message. Aborting connection.
  7250. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7251. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7252. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7253. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7254. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7255. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7256. Failed writing message. Aborting connection.
  7257. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7258. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7259. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7260. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7261. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7262. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7263. Failed writing message. Aborting connection.
  7264. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7265. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7266. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7267. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7268. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7269. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7270. Failed writing message. Aborting connection.
  7271. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7272. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7273. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7274. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7275. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7276. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7277. Failed writing message. Aborting connection.
  7278. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7279. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7280. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7281. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7282. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7283. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7284. Failed writing message. Aborting connection.
  7285. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7286. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7287. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7288. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7289. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7290. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7291. Failed writing message. Aborting connection.
  7292. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7293. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7294. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7295. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7296. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7297. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7298. Failed writing message. Aborting connection.
  7299. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7300. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7301. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7302. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7303. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7304. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7305. Failed writing message. Aborting connection.
  7306. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7307. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7308. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7309. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7310. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7311. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7312. Failed writing message. Aborting connection.
  7313. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7314. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7315. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7316. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7317. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7318. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7319. Failed writing message. Aborting connection.
  7320. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7321. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7322. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7323. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7324. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7325. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7326. Failed writing message. Aborting connection.
  7327. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7328. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7329. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7330. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7331. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7332. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7333. Failed writing message. Aborting connection.
  7334. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7335. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7336. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7337. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7338. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7339. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7340. Failed writing message. Aborting connection.
  7341. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7342. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7343. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7344. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7345. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7346. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7347. Failed writing message. Aborting connection.
  7348. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7349. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7350. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7351. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7352. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7353. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7354. Failed writing message. Aborting connection.
  7355. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7356. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7357. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7358. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7359. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7360. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7361. Failed writing message. Aborting connection.
  7362. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7363. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7364. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7365. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7366. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7367. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7368. Failed writing message. Aborting connection.
  7369. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7370. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7371. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7372. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7373. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7374. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7375. Failed writing message. Aborting connection.
  7376. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7377. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7378. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7379. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7380. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7381. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7382. Failed writing message. Aborting connection.
  7383. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7384. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7385. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7386. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7387. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7388. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7389. Failed writing message. Aborting connection.
  7390. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7391. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7392. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7393. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7394. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7395. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7396. Failed writing message. Aborting connection.
  7397. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7398. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7399. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7400. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7401. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7402. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7403. Failed writing message. Aborting connection.
  7404. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7405. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7406. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7407. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7408. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7409. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7410. Failed writing message. Aborting connection.
  7411. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7412. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7413. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7414. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7415. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7416. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7417. Failed writing message. Aborting connection.
  7418. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7419. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7420. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7421. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7422. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7423. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7424. Failed writing message. Aborting connection.
  7425. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7426. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7427. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7428. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7429. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7430. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7431. Failed writing message. Aborting connection.
  7432. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7433. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7434. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7435. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7436. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7437. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7438. Failed writing message. Aborting connection.
  7439. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7440. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7441. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7442. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7443. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7444. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7445. Failed writing message. Aborting connection.
  7446. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7447. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7448. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7449. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7450. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7451. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7452. Failed writing message. Aborting connection.
  7453. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7454. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7455. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7456. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7457. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7458. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7459. Failed writing message. Aborting connection.
  7460. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7461. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7462. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7463. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7464. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7465. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7466. Failed writing message. Aborting connection.
  7467. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7468. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7469. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7470. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7471. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7472. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7473. Failed writing message. Aborting connection.
  7474. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7475. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7476. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7477. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7478. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7479. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7480. Failed writing message. Aborting connection.
  7481. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7482. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7483. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7484. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7485. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7486. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7487. Failed writing message. Aborting connection.
  7488. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7489. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7490. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7491. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7492. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7493. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7494. Failed writing message. Aborting connection.
  7495. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7496. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7497. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7498. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7499. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7500. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7501. Failed writing message. Aborting connection.
  7502. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7503. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7504. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7505. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7506. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7507. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7508. Failed writing message. Aborting connection.
  7509. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7510. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7511. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7512. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7513. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7514. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7515. Failed writing message. Aborting connection.
  7516. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7517. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7518. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7519. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7520. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7521. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7522. Failed writing message. Aborting connection.
  7523. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7524. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7525. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7526. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7527. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7528. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7529. Failed writing message. Aborting connection.
  7530. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7531. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7532. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7533. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7534. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7535. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7536. Failed writing message. Aborting connection.
  7537. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7538. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7539. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7540. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7541. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7542. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7543. Failed writing message. Aborting connection.
  7544. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7545. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7546. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7547. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7548. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7549. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7550. Failed writing message. Aborting connection.
  7551. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7552. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7553. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7554. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7555. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7556. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7557. Failed writing message. Aborting connection.
  7558. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7559. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7560. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7561. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7562. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7563. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7564. Failed writing message. Aborting connection.
  7565. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7566. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7567. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7568. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7569. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7570. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7571. Failed writing message. Aborting connection.
  7572. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7573. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7574. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7575. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7576. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7577. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7578. Failed writing message. Aborting connection.
  7579. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7580. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7581. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7582. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7583. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7584. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7585. Failed writing message. Aborting connection.
  7586. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7587. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7588. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7589. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7590. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7591. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7592. Failed writing message. Aborting connection.
  7593. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7594. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7595. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7596. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7597. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7598. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7599. Failed writing message. Aborting connection.
  7600. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7601. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7602. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7603. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7604. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7605. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7606. Failed writing message. Aborting connection.
  7607. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7608. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7609. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7610. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7611. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7612. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7613. Failed writing message. Aborting connection.
  7614. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7615. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7616. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7617. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7618. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7619. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7620. Failed writing message. Aborting connection.
  7621. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7622. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7623. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7624. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7625. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7626. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7627. Failed writing message. Aborting connection.
  7628. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7629. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7630. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7631. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7632. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7633. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7634. Failed writing message. Aborting connection.
  7635. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7636. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7637. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7638. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7639. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7640. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7641. Failed writing message. Aborting connection.
  7642. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7643. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7644. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7645. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7646. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7647. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7648. Failed writing message. Aborting connection.
  7649. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7650. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7651. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7652. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7653. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7654. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7655. Failed writing message. Aborting connection.
  7656. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7657. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7658. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7659. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7660. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7661. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7662. Failed writing message. Aborting connection.
  7663. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7664. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7665. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7666. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7667. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7668. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7669. Failed writing message. Aborting connection.
  7670. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7671. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7672. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7673. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7674. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7675. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7676. Failed writing message. Aborting connection.
  7677. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7678. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7679. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7680. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7681. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7682. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7683. Failed writing message. Aborting connection.
  7684. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7685. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7686. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7687. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7688. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7689. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7690. Failed writing message. Aborting connection.
  7691. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7692. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7693. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7694. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7695. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7696. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7697. Failed writing message. Aborting connection.
  7698. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7699. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7700. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7701. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7702. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7703. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7704. Failed writing message. Aborting connection.
  7705. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7706. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7707. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7708. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7709. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7710. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7711. Failed writing message. Aborting connection.
  7712. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7713. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7714. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7715. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7716. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7717. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7718. Failed writing message. Aborting connection.
  7719. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7720. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7721. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7722. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7723. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7724. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7725. Failed writing message. Aborting connection.
  7726. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7727. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7728. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7729. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7730. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7731. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7732. Failed writing message. Aborting connection.
  7733. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7734. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7735. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7736. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7737. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7738. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7739. Failed writing message. Aborting connection.
  7740. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7741. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7742. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7743. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7744. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7745. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7746. Failed writing message. Aborting connection.
  7747. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7748. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7749. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7750. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7751. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7752. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7753. Failed writing message. Aborting connection.
  7754. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7755. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7756. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7757. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7758. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7759. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7760. Failed writing message. Aborting connection.
  7761. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7762. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7763. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7764. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7765. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7766. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7767. Failed writing message. Aborting connection.
  7768. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7769. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7770. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7771. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7772. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7773. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7774. Failed writing message. Aborting connection.
  7775. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7776. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7777. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7778. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7779. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7780. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7781. Failed writing message. Aborting connection.
  7782. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7783. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7784. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7785. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7786. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7787. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7788. Failed writing message. Aborting connection.
  7789. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7790. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7791. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7792. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7793. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7794. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7795. Failed writing message. Aborting connection.
  7796. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7797. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7798. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7799. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7800. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7801. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7802. Failed writing message. Aborting connection.
  7803. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7804. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7805. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7806. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7807. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7808. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7809. Failed writing message. Aborting connection.
  7810. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7811. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7812. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7813. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7814. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7815. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7816. Failed writing message. Aborting connection.
  7817. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7818. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7819. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7820. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7821. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7822. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7823. Failed writing message. Aborting connection.
  7824. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7825. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7826. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7827. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7828. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7829. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7830. Failed writing message. Aborting connection.
  7831. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7832. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7833. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7834. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7835. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7836. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7837. Failed writing message. Aborting connection.
  7838. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7839. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7840. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7841. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7842. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7843. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7844. Failed writing message. Aborting connection.
  7845. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7846. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7847. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7848. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7849. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7850. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7851. Failed writing message. Aborting connection.
  7852. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7853. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7854. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7855. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7856. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7857. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7858. Failed writing message. Aborting connection.
  7859. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7860. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7861. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7862. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7863. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7864. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7865. Failed writing message. Aborting connection.
  7866. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7867. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7868. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7869. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7870. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7871. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7872. Failed writing message. Aborting connection.
  7873. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7874. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7875. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7876. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7877. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7878. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7879. Failed writing message. Aborting connection.
  7880. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7881. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7882. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7883. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7884. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7885. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7886. Failed writing message. Aborting connection.
  7887. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7888. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7889. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7890. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7891. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7892. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7893. Failed writing message. Aborting connection.
  7894. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7895. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7896. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7897. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7898. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7899. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7900. Failed writing message. Aborting connection.
  7901. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7902. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7903. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7904. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7905. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7906. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7907. Failed writing message. Aborting connection.
  7908. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7909. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7910. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7911. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7912. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7913. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7914. Failed writing message. Aborting connection.
  7915. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7916. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7917. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7918. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7919. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7920. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7921. Failed writing message. Aborting connection.
  7922. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7923. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7924. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7925. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7926. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7927. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7928. Failed writing message. Aborting connection.
  7929. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7930. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7931. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7932. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7933. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7934. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7935. Failed writing message. Aborting connection.
  7936. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7937. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7938. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7939. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7940. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7941. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7942. Failed writing message. Aborting connection.
  7943. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7944. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7945. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7946. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7947. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7948. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7949. Failed writing message. Aborting connection.
  7950. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7951. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7952. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7953. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7954. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7955. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7956. Failed writing message. Aborting connection.
  7957. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7958. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7959. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7960. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7961. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7962. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7963. Failed writing message. Aborting connection.
  7964. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7965. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7966. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7967. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7968. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7969. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7970. Failed writing message. Aborting connection.
  7971. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7972. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7973. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7974. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7975. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7976. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7977. Failed writing message. Aborting connection.
  7978. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7979. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7980. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7981. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7982. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7983. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7984. Failed writing message. Aborting connection.
  7985. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7986. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7987. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7988. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7989. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7990. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7991. Failed writing message. Aborting connection.
  7992. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7993. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7994. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7995. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7996. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7997. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7998. Failed writing message. Aborting connection.
  7999. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8000. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8001. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8002. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8003. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8004. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8005. Failed writing message. Aborting connection.
  8006. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8007. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8008. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8009. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8010. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8011. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8012. Failed writing message. Aborting connection.
  8013. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8014. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8015. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8016. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8017. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8018. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8019. Failed writing message. Aborting connection.
  8020. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8021. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8022. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8023. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8024. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8025. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8026. Failed writing message. Aborting connection.
  8027. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8028. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8029. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8030. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8031. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8032. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8033. Failed writing message. Aborting connection.
  8034. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8035. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8036. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8037. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8038. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8039. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8040. Failed writing message. Aborting connection.
  8041. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8042. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8043. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8044. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8045. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8046. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8047. Failed writing message. Aborting connection.
  8048. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8049. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8050. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8051. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8052. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8053. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8054. Failed writing message. Aborting connection.
  8055. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8056. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8057. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8058. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8059. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8060. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8061. Failed writing message. Aborting connection.
  8062. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8063. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8064. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8065. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8066. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8067. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8068. Failed writing message. Aborting connection.
  8069. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8070. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8071. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8072. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8073. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8074. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8075. Failed writing message. Aborting connection.
  8076. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8077. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8078. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8079. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8080. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8081. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8082. Failed writing message. Aborting connection.
  8083. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8084. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8085. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8086. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8087. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8088. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8089. Failed writing message. Aborting connection.
  8090. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8091. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8092. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8093. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8094. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8095. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8096. Failed writing message. Aborting connection.
  8097. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8098. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8099. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8100. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8101. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8102. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8103. Failed writing message. Aborting connection.
  8104. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8105. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8106. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8107. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8108. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8109. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8110. Failed writing message. Aborting connection.
  8111. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8112. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8113. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8114. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8115. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8116. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8117. Failed writing message. Aborting connection.
  8118. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8119. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8120. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8121. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8122. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8123. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8124. Failed writing message. Aborting connection.
  8125. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8126. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8127. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8128. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8129. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8130. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8131. Failed writing message. Aborting connection.
  8132. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8133. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8134. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8135. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8136. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8137. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8138. Failed writing message. Aborting connection.
  8139. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8140. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8141. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8142. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8143. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8144. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8145. Failed writing message. Aborting connection.
  8146. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8147. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8148. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8149. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8150. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8151. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8152. Failed writing message. Aborting connection.
  8153. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8154. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8155. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8156. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8157. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8158. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8159. Failed writing message. Aborting connection.
  8160. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8161. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8162. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8163. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8164. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8165. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8166. Failed writing message. Aborting connection.
  8167. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8168. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8169. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8170. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8171. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8172. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8173. Failed writing message. Aborting connection.
  8174. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8175. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8176. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8177. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8178. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8179. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8180. Failed writing message. Aborting connection.
  8181. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8182. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8183. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8184. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8185. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8186. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8187. Failed writing message. Aborting connection.
  8188. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8189. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8190. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8191. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8192. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8193. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8194. Failed writing message. Aborting connection.
  8195. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8196. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8197. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8198. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8199. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8200. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8201. Failed writing message. Aborting connection.
  8202. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8203. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8204. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8205. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8206. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8207. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8208. Failed writing message. Aborting connection.
  8209. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8210. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8211. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8212. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8213. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8214. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8215. Failed writing message. Aborting connection.
  8216. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8217. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8218. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8219. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8220. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8221. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8222. Failed writing message. Aborting connection.
  8223. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8224. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8225. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8226. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8227. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8228. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8229. Failed writing message. Aborting connection.
  8230. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8231. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8232. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8233. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8234. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8235. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8236. Failed writing message. Aborting connection.
  8237. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8238. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8239. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8240. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8241. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8242. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8243. Failed writing message. Aborting connection.
  8244. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8245. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8246. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8247. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8248. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8249. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8250. Failed writing message. Aborting connection.
  8251. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8252. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8253. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8254. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8255. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8256. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8257. Failed writing message. Aborting connection.
  8258. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8259. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8260. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8261. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8262. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8263. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8264. Failed writing message. Aborting connection.
  8265. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8266. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8267. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8268. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8269. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8270. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8271. Failed writing message. Aborting connection.
  8272. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8273. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8274. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8275. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8276. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8277. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8278. Failed writing message. Aborting connection.
  8279. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8280. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8281. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8282. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8283. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8284. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8285. Failed writing message. Aborting connection.
  8286. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8287. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8288. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8289. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8290. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8291. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8292. Failed writing message. Aborting connection.
  8293. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8294. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8295. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8296. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8297. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8298. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8299. Failed writing message. Aborting connection.
  8300. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8301. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8302. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8303. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8304. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8305. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8306. Failed writing message. Aborting connection.
  8307. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8308. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8309. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8310. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8311. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8312. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8313. Failed writing message. Aborting connection.
  8314. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8315. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8316. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8317. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8318. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8319. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8320. Failed writing message. Aborting connection.
  8321. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8322. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8323. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8324. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8325. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8326. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8327. Failed writing message. Aborting connection.
  8328. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8329. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8330. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8331. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8332. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8333. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8334. Failed writing message. Aborting connection.
  8335. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8336. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8337. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8338. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8339. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8340. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8341. Failed writing message. Aborting connection.
  8342. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8343. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8344. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8345. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8346. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8347. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8348. Failed writing message. Aborting connection.
  8349. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8350. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8351. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8352. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8353. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8354. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8355. Failed writing message. Aborting connection.
  8356. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8357. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8358. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8359. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8360. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8361. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8362. Failed writing message. Aborting connection.
  8363. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8364. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8365. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8366. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8367. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8368. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8369. Failed writing message. Aborting connection.
  8370. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8371. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8372. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8373. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8374. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8375. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8376. Failed writing message. Aborting connection.
  8377. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8378. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8379. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8380. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8381. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8382. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8383. Failed writing message. Aborting connection.
  8384. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8385. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8386. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8387. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8388. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8389. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8390. Failed writing message. Aborting connection.
  8391. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8392. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8393. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8394. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8395. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8396. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8397. Failed writing message. Aborting connection.
  8398. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8399. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8400. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8401. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8402. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8403. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8404. Failed writing message. Aborting connection.
  8405. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8406. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8407. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8408. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8409. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8410. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8411. Failed writing message. Aborting connection.
  8412. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8413. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8414. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8415. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8416. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8417. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8418. Failed writing message. Aborting connection.
  8419. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8420. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8421. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8422. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8423. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8424. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8425. Failed writing message. Aborting connection.
  8426. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8427. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8428. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8429. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8430. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8431. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8432. Failed writing message. Aborting connection.
  8433. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8434. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8435. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8436. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8437. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8438. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8439. Failed writing message. Aborting connection.
  8440. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8441. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8442. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8443. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8444. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8445. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8446. Failed writing message. Aborting connection.
  8447. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8448. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8449. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8450. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8451. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8452. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8453. Failed writing message. Aborting connection.
  8454. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8455. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8456. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8457. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8458. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8459. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8460. Failed writing message. Aborting connection.
  8461. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8462. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8463. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8464. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8465. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8466. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8467. Failed writing message. Aborting connection.
  8468. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8469. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8470. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8471. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8472. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8473. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8474. Failed writing message. Aborting connection.
  8475. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8476. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8477. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8478. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8479. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8480. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8481. Failed writing message. Aborting connection.
  8482. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8483. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8484. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8485. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8486. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8487. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8488. Failed writing message. Aborting connection.
  8489. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8490. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8491. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8492. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8493. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8494. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8495. Failed writing message. Aborting connection.
  8496. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8497. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8498. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8499. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8500. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8501. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8502. Failed writing message. Aborting connection.
  8503. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8504. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8505. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8506. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8507. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8508. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8509. Failed writing message. Aborting connection.
  8510. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8511. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8512. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8513. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8514. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8515. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8516. Failed writing message. Aborting connection.
  8517. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8518. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8519. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8520. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8521. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8522. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8523. Failed writing message. Aborting connection.
  8524. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8525. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8526. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8527. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8528. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8529. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8530. Failed writing message. Aborting connection.
  8531. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8532. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8533. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8534. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8535. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8536. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8537. Failed writing message. Aborting connection.
  8538. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8539. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8540. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8541. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8542. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8543. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8544. Failed writing message. Aborting connection.
  8545. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8546. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8547. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8548. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8549. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8550. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8551. Failed writing message. Aborting connection.
  8552. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8553. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8554. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8555. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8556. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8557. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8558. Failed writing message. Aborting connection.
  8559. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8560. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8561. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8562. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8563. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8564. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8565. Failed writing message. Aborting connection.
  8566. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8567. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8568. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8569. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8570. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8571. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8572. Failed writing message. Aborting connection.
  8573. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8574. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8575. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8576. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8577. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8578. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8579. Failed writing message. Aborting connection.
  8580. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8581. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8582. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8583. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8584. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8585. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8586. Failed writing message. Aborting connection.
  8587. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8588. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8589. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8590. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8591. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8592. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8593. Failed writing message. Aborting connection.
  8594. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8595. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8596. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8597. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8598. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8599. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8600. Failed writing message. Aborting connection.
  8601. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8602. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8603. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8604. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8605. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8606. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8607. Failed writing message. Aborting connection.
  8608. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8609. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8610. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8611. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8612. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8613. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8614. Failed writing message. Aborting connection.
  8615. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8616. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8617. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8618. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8619. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8620. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8621. Failed writing message. Aborting connection.
  8622. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8623. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8624. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8625. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8626. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8627. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8628. Failed writing message. Aborting connection.
  8629. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8630. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8631. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8632. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8633. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8634. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8635. Failed writing message. Aborting connection.
  8636. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8637. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8638. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8639. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8640. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8641. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8642. Failed writing message. Aborting connection.
  8643. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8644. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8645. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8646. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8647. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8648. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8649. Failed writing message. Aborting connection.
  8650. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8651. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8652. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8653. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8654. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8655. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8656. Failed writing message. Aborting connection.
  8657. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8658. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8659. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8660. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8661. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8662. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8663. Failed writing message. Aborting connection.
  8664. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8665. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8666. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8667. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8668. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8669. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8670. Failed writing message. Aborting connection.
  8671. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8672. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8673. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8674. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8675. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8676. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8677. Failed writing message. Aborting connection.
  8678. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8679. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8680. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8681. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8682. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8683. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8684. Failed writing message. Aborting connection.
  8685. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8686. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8687. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8688. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8689. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8690. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8691. Failed writing message. Aborting connection.
  8692. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8693. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8694. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8695. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8696. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8697. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8698. Failed writing message. Aborting connection.
  8699. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8700. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8701. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8702. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8703. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8704. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8705. Failed writing message. Aborting connection.
  8706. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8707. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8708. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8709. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8710. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8711. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8712. Failed writing message. Aborting connection.
  8713. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8714. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8715. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8716. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8717. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8718. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8719. Failed writing message. Aborting connection.
  8720. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8721. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8722. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8723. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8724. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8725. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8726. Failed writing message. Aborting connection.
  8727. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8728. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8729. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8730. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8731. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8732. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8733. Failed writing message. Aborting connection.
  8734. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8735. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8736. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8737. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8738. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8739. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8740. Failed writing message. Aborting connection.
  8741. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8742. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8743. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8744. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8745. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8746. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8747. Failed writing message. Aborting connection.
  8748. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8749. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8750. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8751. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8752. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8753. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8754. Failed writing message. Aborting connection.
  8755. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8756. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8757. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8758. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8759. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8760. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8761. Failed writing message. Aborting connection.
  8762. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8763. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8764. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8765. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8766. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8767. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8768. Failed writing message. Aborting connection.
  8769. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8770. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8771. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8772. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8773. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8774. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8775. Failed writing message. Aborting connection.
  8776. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8777. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8778. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8779. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8780. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8781. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8782. Failed writing message. Aborting connection.
  8783. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8784. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8785. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8786. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8787. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8788. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8789. Failed writing message. Aborting connection.
  8790. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8791. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8792. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8793. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8794. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8795. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8796. Failed writing message. Aborting connection.
  8797. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8798. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8799. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8800. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8801. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8802. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8803. Failed writing message. Aborting connection.
  8804. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8805. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8806. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8807. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8808. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8809. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8810. Failed writing message. Aborting connection.
  8811. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8812. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8813. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8814. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8815. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8816. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8817. Failed writing message. Aborting connection.
  8818. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8819. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8820. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8821. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8822. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8823. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8824. Failed writing message. Aborting connection.
  8825. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8826. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8827. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8828. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8829. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8830. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8831. Failed writing message. Aborting connection.
  8832. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8833. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8834. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8835. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8836. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8837. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8838. Failed writing message. Aborting connection.
  8839. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8840. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8841. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8842. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8843. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8844. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8845. Failed writing message. Aborting connection.
  8846. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8847. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8848. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8849. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8850. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8851. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8852. Failed writing message. Aborting connection.
  8853. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8854. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8855. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8856. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8857. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8858. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8859. Failed writing message. Aborting connection.
  8860. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8861. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8862. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8863. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8864. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8865. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8866. Failed writing message. Aborting connection.
  8867. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8868. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8869. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8870. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8871. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8872. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8873. Failed writing message. Aborting connection.
  8874. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8875. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8876. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8877. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8878. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8879. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8880. Failed writing message. Aborting connection.
  8881. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8882. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8883. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8884. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8885. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8886. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8887. Failed writing message. Aborting connection.
  8888. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8889. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8890. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8891. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8892. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8893. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8894. Failed writing message. Aborting connection.
  8895. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8896. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8897. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8898. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8899. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8900. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8901. Failed writing message. Aborting connection.
  8902. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8903. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8904. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8905. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8906. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8907. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8908. Failed writing message. Aborting connection.
  8909. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8910. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8911. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8912. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8913. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8914. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8915. Failed writing message. Aborting connection.
  8916. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8917. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8918. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8919. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8920. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8921. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8922. Failed writing message. Aborting connection.
  8923. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8924. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8925. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8926. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8927. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8928. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8929. Failed writing message. Aborting connection.
  8930. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8931. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8932. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8933. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8934. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8935. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8936. Failed writing message. Aborting connection.
  8937. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8938. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8939. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8940. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8941. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8942. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8943. Failed writing message. Aborting connection.
  8944. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8945. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8946. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8947. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8948. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8949. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8950. Failed writing message. Aborting connection.
  8951. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8952. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8953. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8954. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8955. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8956. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8957. Failed writing message. Aborting connection.
  8958. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8959. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8960. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8961. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8962. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8963. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8964. Failed writing message. Aborting connection.
  8965. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8966. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8967. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8968. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8969. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8970. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  8971. Heartbeat took longer than "00:00:01" at "06/01/2019 00:41:12 +00:00".
  8972. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8973. Failed writing message. Aborting connection.
  8974. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8975. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8976. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8977. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8978. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8979. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8980. Failed writing message. Aborting connection.
  8981. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8982. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8983. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8984. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8985. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8986. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8987. Failed writing message. Aborting connection.
  8988. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8989. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8990. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8991. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8992. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  8993. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  8994. Failed writing message. Aborting connection.
  8995. System.InvalidOperationException: Writing is not allowed after writer was completed.
  8996. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  8997. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8998. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  8999. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9000. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9001. Failed writing message. Aborting connection.
  9002. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9003. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9004. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9005. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9006. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9007. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9008. Failed writing message. Aborting connection.
  9009. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9010. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9011. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9012. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9013. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9014. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9015. Failed writing message. Aborting connection.
  9016. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9017. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9018. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9019. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9020. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9021. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9022. Failed writing message. Aborting connection.
  9023. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9024. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9025. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9026. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9027. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9028. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9029. Failed writing message. Aborting connection.
  9030. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9031. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9032. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9033. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9034. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9035. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9036. Failed writing message. Aborting connection.
  9037. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9038. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9039. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9040. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9041. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9042. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9043. Failed writing message. Aborting connection.
  9044. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9045. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9046. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9047. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9048. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9049. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9050. Failed writing message. Aborting connection.
  9051. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9052. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9053. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9054. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9055. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9056. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9057. Failed writing message. Aborting connection.
  9058. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9059. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9060. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9061. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9062. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9063. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9064. Failed writing message. Aborting connection.
  9065. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9066. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9067. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9068. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9069. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9070. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9071. Failed writing message. Aborting connection.
  9072. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9073. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9074. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9075. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9076. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9077. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9078. Failed writing message. Aborting connection.
  9079. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9080. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9081. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9082. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9083. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9084. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9085. Failed writing message. Aborting connection.
  9086. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9087. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9088. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9089. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9090. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9091. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9092. Failed writing message. Aborting connection.
  9093. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9094. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9095. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9096. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9097. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9098. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9099. Failed writing message. Aborting connection.
  9100. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9101. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9102. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9103. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9104. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9105. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9106. Failed writing message. Aborting connection.
  9107. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9108. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9109. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9110. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9111. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9112. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9113. Failed writing message. Aborting connection.
  9114. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9115. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9116. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9117. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9118. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9119. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9120. Failed writing message. Aborting connection.
  9121. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9122. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9123. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9124. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9125. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9126. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9127. Failed writing message. Aborting connection.
  9128. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9129. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9130. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9131. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9132. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9133. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9134. Failed writing message. Aborting connection.
  9135. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9136. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9137. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9138. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9139. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9140. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9141. Failed writing message. Aborting connection.
  9142. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9143. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9144. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9145. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9146. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9147. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9148. Failed writing message. Aborting connection.
  9149. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9150. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9151. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9152. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9153. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9154. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9155. Failed writing message. Aborting connection.
  9156. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9157. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9158. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9159. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9160. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9161. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9162. Failed writing message. Aborting connection.
  9163. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9164. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9165. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9166. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9167. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9168. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9169. Failed writing message. Aborting connection.
  9170. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9171. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9172. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9173. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9174. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9175. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9176. Failed writing message. Aborting connection.
  9177. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9178. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9179. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9180. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9181. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9182. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9183. Failed writing message. Aborting connection.
  9184. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9185. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9186. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9187. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9188. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9189. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9190. Failed writing message. Aborting connection.
  9191. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9192. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9193. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9194. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9195. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9196. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9197. Failed writing message. Aborting connection.
  9198. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9199. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9200. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9201. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9202. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9203. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9204. Failed writing message. Aborting connection.
  9205. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9206. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9207. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9208. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9209. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9210. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9211. Failed writing message. Aborting connection.
  9212. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9213. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9214. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9215. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9216. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9217. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9218. Failed writing message. Aborting connection.
  9219. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9220. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9221. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9222. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9223. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9224. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9225. Failed writing message. Aborting connection.
  9226. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9227. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9228. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9229. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9230. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9231. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9232. Failed writing message. Aborting connection.
  9233. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9234. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9235. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9236. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9237. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9238. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9239. Failed writing message. Aborting connection.
  9240. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9241. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9242. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9243. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9244. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9245. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9246. Failed writing message. Aborting connection.
  9247. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9248. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9249. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9250. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9251. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9252. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9253. Failed writing message. Aborting connection.
  9254. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9255. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9256. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9257. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9258. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9259. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9260. Failed writing message. Aborting connection.
  9261. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9262. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9263. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9264. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9265. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9266. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9267. Failed writing message. Aborting connection.
  9268. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9269. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9270. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9271. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9272. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9273. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9274. Failed writing message. Aborting connection.
  9275. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9276. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9277. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9278. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9279. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9280. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9281. Failed writing message. Aborting connection.
  9282. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9283. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9284. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9285. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9286. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9287. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9288. Failed writing message. Aborting connection.
  9289. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9290. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9291. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9292. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9293. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9294. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9295. Failed writing message. Aborting connection.
  9296. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9297. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9298. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9299. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9300. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9301. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9302. Failed writing message. Aborting connection.
  9303. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9304. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9305. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9306. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9307. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9308. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9309. Failed writing message. Aborting connection.
  9310. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9311. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9312. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9313. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9314. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9315. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9316. Failed writing message. Aborting connection.
  9317. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9318. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9319. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9320. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9321. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9322. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9323. Failed writing message. Aborting connection.
  9324. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9325. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9326. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9327. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9328. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9329. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9330. Failed writing message. Aborting connection.
  9331. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9332. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9333. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9334. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9335. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9336. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9337. Failed writing message. Aborting connection.
  9338. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9339. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9340. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9341. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9342. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9343. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9344. Failed writing message. Aborting connection.
  9345. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9346. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9347. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9348. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9349. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9350. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9351. Failed writing message. Aborting connection.
  9352. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9353. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9354. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9355. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9356. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9357. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9358. Failed writing message. Aborting connection.
  9359. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9360. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9361. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9362. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9363. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9364. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9365. Failed writing message. Aborting connection.
  9366. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9367. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9368. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9369. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9370. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9371. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9372. Failed writing message. Aborting connection.
  9373. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9374. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9375. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9376. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9377. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9378. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9379. Failed writing message. Aborting connection.
  9380. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9381. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9382. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9383. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9384. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9385. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9386. Failed writing message. Aborting connection.
  9387. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9388. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9389. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9390. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9391. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9392. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9393. Failed writing message. Aborting connection.
  9394. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9395. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9396. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9397. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9398. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9399. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9400. Failed writing message. Aborting connection.
  9401. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9402. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9403. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9404. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9405. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9406. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9407. Failed writing message. Aborting connection.
  9408. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9409. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9410. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9411. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9412. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9413. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9414. Failed writing message. Aborting connection.
  9415. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9416. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9417. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9418. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9419. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9420. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9421. Failed writing message. Aborting connection.
  9422. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9423. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9424. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9425. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9426. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9427. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9428. Failed writing message. Aborting connection.
  9429. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9430. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9431. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9432. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9433. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9434. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9435. Failed writing message. Aborting connection.
  9436. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9437. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9438. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9439. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9440. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9441. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9442. Failed writing message. Aborting connection.
  9443. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9444. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9445. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9446. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9447. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9448. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9449. Failed writing message. Aborting connection.
  9450. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9451. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9452. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9453. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9454. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9455. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9456. Failed writing message. Aborting connection.
  9457. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9458. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9459. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9460. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9461. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9462. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9463. Failed writing message. Aborting connection.
  9464. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9465. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9466. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9467. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9468. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9469. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9470. Failed writing message. Aborting connection.
  9471. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9472. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9473. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9474. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9475. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9476. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9477. Failed writing message. Aborting connection.
  9478. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9479. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9480. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9481. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9482. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9483. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9484. Failed writing message. Aborting connection.
  9485. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9486. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9487. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9488. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9489. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9490. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9491. Failed writing message. Aborting connection.
  9492. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9493. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9494. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9495. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9496. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9497. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9498. Failed writing message. Aborting connection.
  9499. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9500. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9501. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9502. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9503. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9504. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9505. Failed writing message. Aborting connection.
  9506. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9507. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9508. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9509. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9510. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9511. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9512. Failed writing message. Aborting connection.
  9513. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9514. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9515. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9516. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9517. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9518. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9519. Failed writing message. Aborting connection.
  9520. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9521. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9522. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9523. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9524. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9525. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9526. Failed writing message. Aborting connection.
  9527. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9528. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9529. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9530. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9531. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9532. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9533. Failed writing message. Aborting connection.
  9534. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9535. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9536. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9537. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9538. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9539. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9540. Failed writing message. Aborting connection.
  9541. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9542. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9543. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9544. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9545. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9546. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9547. Failed writing message. Aborting connection.
  9548. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9549. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9550. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9551. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9552. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9553. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9554. Failed writing message. Aborting connection.
  9555. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9556. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9557. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9558. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9559. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9560. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9561. Failed writing message. Aborting connection.
  9562. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9563. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9564. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9565. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9566. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9567. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9568. Failed writing message. Aborting connection.
  9569. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9570. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9571. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9572. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9573. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9574. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9575. Failed writing message. Aborting connection.
  9576. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9577. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9578. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9579. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9580. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9581. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9582. Failed writing message. Aborting connection.
  9583. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9584. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9585. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9586. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9587. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9588. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9589. Failed writing message. Aborting connection.
  9590. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9591. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9592. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9593. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9594. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9595. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9596. Failed writing message. Aborting connection.
  9597. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9598. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9599. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9600. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9601. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9602. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9603. Failed writing message. Aborting connection.
  9604. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9605. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9606. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9607. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9608. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9609. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9610. Failed writing message. Aborting connection.
  9611. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9612. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9613. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9614. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9615. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9616. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9617. Failed writing message. Aborting connection.
  9618. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9619. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9620. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9621. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9622. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9623. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9624. Failed writing message. Aborting connection.
  9625. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9626. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9627. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9628. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9629. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9630. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9631. Failed writing message. Aborting connection.
  9632. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9633. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9634. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9635. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9636. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9637. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9638. Failed writing message. Aborting connection.
  9639. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9640. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9641. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9642. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9643. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9644. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9645. Failed writing message. Aborting connection.
  9646. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9647. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9648. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9649. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9650. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9651. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9652. Failed writing message. Aborting connection.
  9653. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9654. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9655. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9656. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9657. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9658. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9659. Failed writing message. Aborting connection.
  9660. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9661. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9662. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9663. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9664. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9665. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9666. Failed writing message. Aborting connection.
  9667. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9668. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9669. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9670. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9671. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9672. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9673. Failed writing message. Aborting connection.
  9674. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9675. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9676. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9677. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9678. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9679. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9680. Failed writing message. Aborting connection.
  9681. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9682. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9683. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9684. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9685. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9686. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9687. Failed writing message. Aborting connection.
  9688. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9689. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9690. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9691. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9692. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9693. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9694. Failed writing message. Aborting connection.
  9695. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9696. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9697. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9698. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9699. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9700. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9701. Failed writing message. Aborting connection.
  9702. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9703. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9704. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9705. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9706. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9707. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9708. Failed writing message. Aborting connection.
  9709. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9710. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9711. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9712. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9713. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9714. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9715. Failed writing message. Aborting connection.
  9716. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9717. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9718. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9719. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9720. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9721. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9722. Failed writing message. Aborting connection.
  9723. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9724. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9725. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9726. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9727. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9728. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9729. Failed writing message. Aborting connection.
  9730. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9731. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9732. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9733. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9734. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9735. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9736. Failed writing message. Aborting connection.
  9737. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9738. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9739. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9740. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9741. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9742. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9743. Failed writing message. Aborting connection.
  9744. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9745. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9746. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9747. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9748. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9749. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9750. Failed writing message. Aborting connection.
  9751. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9752. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9753. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9754. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9755. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9756. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9757. Failed writing message. Aborting connection.
  9758. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9759. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9760. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9761. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9762. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9763. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9764. Failed writing message. Aborting connection.
  9765. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9766. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9767. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9768. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9769. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9770. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9771. Failed writing message. Aborting connection.
  9772. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9773. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9774. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9775. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9776. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9777. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9778. Failed writing message. Aborting connection.
  9779. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9780. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9781. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9782. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9783. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9784. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9785. Failed writing message. Aborting connection.
  9786. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9787. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9788. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9789. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9790. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9791. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9792. Failed writing message. Aborting connection.
  9793. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9794. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9795. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9796. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9797. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9798. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9799. Failed writing message. Aborting connection.
  9800. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9801. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9802. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9803. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9804. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9805. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9806. Failed writing message. Aborting connection.
  9807. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9808. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9809. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9810. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9811. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9812. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9813. Failed writing message. Aborting connection.
  9814. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9815. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9816. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9817. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9818. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9819. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9820. Failed writing message. Aborting connection.
  9821. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9822. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9823. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9824. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9825. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9826. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9827. Failed writing message. Aborting connection.
  9828. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9829. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9830. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9831. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9832. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9833. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9834. Failed writing message. Aborting connection.
  9835. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9836. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9837. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9838. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9839. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9840. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9841. Failed writing message. Aborting connection.
  9842. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9843. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9844. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9845. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9846. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9847. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9848. Failed writing message. Aborting connection.
  9849. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9850. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9851. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9852. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9853. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9854. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9855. Failed writing message. Aborting connection.
  9856. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9857. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9858. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9859. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9860. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9861. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9862. Failed writing message. Aborting connection.
  9863. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9864. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9865. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9866. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9867. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9868. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9869. Failed writing message. Aborting connection.
  9870. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9871. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9872. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9873. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9874. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9875. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9876. Failed writing message. Aborting connection.
  9877. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9878. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9879. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9880. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9881. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9882. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9883. Failed writing message. Aborting connection.
  9884. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9885. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9886. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9887. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9888. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9889. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9890. Failed writing message. Aborting connection.
  9891. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9892. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9893. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9894. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9895. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9896. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9897. Failed writing message. Aborting connection.
  9898. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9899. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9900. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9901. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9902. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9903. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9904. Failed writing message. Aborting connection.
  9905. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9906. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9907. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9908. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9909. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9910. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9911. Failed writing message. Aborting connection.
  9912. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9913. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9914. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9915. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9916. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9917. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9918. Failed writing message. Aborting connection.
  9919. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9920. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9921. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9922. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9923. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9924. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9925. Failed writing message. Aborting connection.
  9926. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9927. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9928. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9929. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9930. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9931. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9932. Failed writing message. Aborting connection.
  9933. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9934. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9935. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9936. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9937. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9938. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9939. Failed writing message. Aborting connection.
  9940. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9941. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9942. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9943. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9944. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9945. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9946. Failed writing message. Aborting connection.
  9947. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9948. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9949. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9950. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9951. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9952. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9953. Failed writing message. Aborting connection.
  9954. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9955. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9956. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9957. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9958. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9959. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9960. Failed writing message. Aborting connection.
  9961. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9962. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9963. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9964. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9965. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9966. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9967. Failed writing message. Aborting connection.
  9968. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9969. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9970. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9971. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9972. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9973. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9974. Failed writing message. Aborting connection.
  9975. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9976. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9977. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9978. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9979. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9980. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9981. Failed writing message. Aborting connection.
  9982. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9983. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9984. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9985. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9986. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9987. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9988. Failed writing message. Aborting connection.
  9989. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9990. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9991. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9992. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9993. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  9994. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  9995. Failed writing message. Aborting connection.
  9996. System.InvalidOperationException: Writing is not allowed after writer was completed.
  9997. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  9998. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  9999. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10000. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10001. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10002. Failed writing message. Aborting connection.
  10003. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10004. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10005. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10006. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10007. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10008. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10009. Failed writing message. Aborting connection.
  10010. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10011. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10012. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10013. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10014. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10015. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10016. Failed writing message. Aborting connection.
  10017. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10018. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10019. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10020. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10021. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10022. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10023. Failed writing message. Aborting connection.
  10024. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10025. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10026. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10027. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10028. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10029. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10030. Failed writing message. Aborting connection.
  10031. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10032. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10033. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10034. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10035. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10036. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10037. Failed writing message. Aborting connection.
  10038. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10039. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10040. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10041. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10042. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10043. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10044. Failed writing message. Aborting connection.
  10045. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10046. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10047. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10048. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10049. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10050. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10051. Failed writing message. Aborting connection.
  10052. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10053. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10054. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10055. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10056. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10057. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10058. Failed writing message. Aborting connection.
  10059. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10060. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10061. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10062. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10063. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10064. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10065. Failed writing message. Aborting connection.
  10066. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10067. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10068. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10069. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10070. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10071. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10072. Failed writing message. Aborting connection.
  10073. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10074. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10075. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10076. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10077. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10078. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10079. Failed writing message. Aborting connection.
  10080. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10081. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10082. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10083. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10084. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10085. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10086. Failed writing message. Aborting connection.
  10087. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10088. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10089. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10090. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10091. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10092. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10093. Failed writing message. Aborting connection.
  10094. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10095. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10096. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10097. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10098. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10099. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10100. Failed writing message. Aborting connection.
  10101. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10102. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10103. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10104. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10105. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10106. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10107. Failed writing message. Aborting connection.
  10108. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10109. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10110. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10111. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10112. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10113. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10114. Failed writing message. Aborting connection.
  10115. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10116. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10117. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10118. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10119. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10120. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10121. Failed writing message. Aborting connection.
  10122. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10123. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10124. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10125. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10126. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10127. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10128. Failed writing message. Aborting connection.
  10129. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10130. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10131. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10132. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10133. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10134. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10135. Failed writing message. Aborting connection.
  10136. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10137. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10138. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10139. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10140. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10141. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10142. Failed writing message. Aborting connection.
  10143. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10144. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10145. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10146. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10147. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10148. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10149. Failed writing message. Aborting connection.
  10150. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10151. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10152. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10153. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10154. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10155. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10156. Failed writing message. Aborting connection.
  10157. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10158. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10159. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10160. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10161. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10162. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10163. Failed writing message. Aborting connection.
  10164. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10165. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10166. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10167. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10168. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10169. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10170. Failed writing message. Aborting connection.
  10171. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10172. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10173. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10174. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10175. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10176. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10177. Failed writing message. Aborting connection.
  10178. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10179. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10180. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10181. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10182. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10183. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10184. Failed writing message. Aborting connection.
  10185. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10186. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10187. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10188. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10189. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10190. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10191. Failed writing message. Aborting connection.
  10192. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10193. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10194. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10195. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10196. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10197. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10198. Failed writing message. Aborting connection.
  10199. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10200. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10201. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10202. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10203. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10204. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10205. Failed writing message. Aborting connection.
  10206. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10207. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10208. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10209. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10210. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10211. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10212. Failed writing message. Aborting connection.
  10213. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10214. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10215. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10216. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10217. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10218. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10219. Failed writing message. Aborting connection.
  10220. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10221. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10222. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10223. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10224. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10225. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10226. Failed writing message. Aborting connection.
  10227. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10228. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10229. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10230. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10231. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10232. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10233. Failed writing message. Aborting connection.
  10234. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10235. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10236. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10237. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10238. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10239. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10240. Failed writing message. Aborting connection.
  10241. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10242. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10243. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10244. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10245. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10246. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10247. Failed writing message. Aborting connection.
  10248. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10249. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10250. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10251. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10252. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10253. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10254. Failed writing message. Aborting connection.
  10255. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10256. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10257. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10258. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10259. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10260. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10261. Failed writing message. Aborting connection.
  10262. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10263. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10264. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10265. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10266. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10267. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10268. Failed writing message. Aborting connection.
  10269. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10270. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10271. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10272. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10273. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10274. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10275. Failed writing message. Aborting connection.
  10276. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10277. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10278. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10279. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10280. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10281. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10282. Failed writing message. Aborting connection.
  10283. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10284. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10285. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10286. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10287. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10288. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10289. Failed writing message. Aborting connection.
  10290. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10291. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10292. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10293. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10294. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10295. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10296. Failed writing message. Aborting connection.
  10297. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10298. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10299. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10300. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10301. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10302. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10303. Failed writing message. Aborting connection.
  10304. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10305. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10306. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10307. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10308. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10309. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10310. Failed writing message. Aborting connection.
  10311. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10312. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10313. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10314. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10315. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10316. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10317. Failed writing message. Aborting connection.
  10318. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10319. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10320. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10321. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10322. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10323. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10324. Failed writing message. Aborting connection.
  10325. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10326. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10327. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10328. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10329. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10330. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10331. Failed writing message. Aborting connection.
  10332. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10333. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10334. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10335. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10336. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10337. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10338. Failed writing message. Aborting connection.
  10339. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10340. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10341. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10342. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10343. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10344. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10345. Failed writing message. Aborting connection.
  10346. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10347. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10348. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10349. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10350. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10351. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10352. Failed writing message. Aborting connection.
  10353. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10354. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10355. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10356. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10357. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10358. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10359. Failed writing message. Aborting connection.
  10360. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10361. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10362. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10363. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10364. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10365. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10366. Failed writing message. Aborting connection.
  10367. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10368. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10369. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10370. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10371. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10372. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10373. Failed writing message. Aborting connection.
  10374. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10375. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10376. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10377. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10378. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10379. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10380. Failed writing message. Aborting connection.
  10381. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10382. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10383. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10384. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10385. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10386. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10387. Failed writing message. Aborting connection.
  10388. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10389. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10390. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10391. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10392. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10393. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10394. Failed writing message. Aborting connection.
  10395. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10396. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10397. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10398. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10399. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10400. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10401. Failed writing message. Aborting connection.
  10402. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10403. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10404. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10405. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10406. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10407. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10408. Failed writing message. Aborting connection.
  10409. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10410. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10411. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10412. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10413. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10414. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10415. Failed writing message. Aborting connection.
  10416. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10417. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10418. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10419. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10420. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10421. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10422. Failed writing message. Aborting connection.
  10423. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10424. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10425. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10426. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10427. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10428. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10429. Failed writing message. Aborting connection.
  10430. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10431. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10432. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10433. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10434. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10435. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10436. Failed writing message. Aborting connection.
  10437. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10438. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10439. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10440. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10441. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10442. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10443. Failed writing message. Aborting connection.
  10444. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10445. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10446. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10447. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10448. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10449. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10450. Failed writing message. Aborting connection.
  10451. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10452. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10453. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10454. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10455. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10456. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10457. Failed writing message. Aborting connection.
  10458. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10459. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10460. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10461. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10462. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10463. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10464. Failed writing message. Aborting connection.
  10465. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10466. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10467. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10468. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10469. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10470. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10471. Failed writing message. Aborting connection.
  10472. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10473. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10474. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10475. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10476. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10477. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10478. Failed writing message. Aborting connection.
  10479. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10480. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10481. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10482. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10483. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10484. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10485. Failed writing message. Aborting connection.
  10486. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10487. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10488. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10489. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10490. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10491. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10492. Failed writing message. Aborting connection.
  10493. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10494. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10495. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10496. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10497. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10498. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10499. Failed writing message. Aborting connection.
  10500. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10501. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10502. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10503. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10504. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10505. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10506. Failed writing message. Aborting connection.
  10507. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10508. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10509. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10510. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10511. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10512. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10513. Failed writing message. Aborting connection.
  10514. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10515. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10516. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10517. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10518. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10519. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10520. Failed writing message. Aborting connection.
  10521. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10522. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10523. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10524. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10525. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10526. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10527. Failed writing message. Aborting connection.
  10528. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10529. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10530. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10531. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10532. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10533. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10534. Failed writing message. Aborting connection.
  10535. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10536. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10537. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10538. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10539. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10540. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10541. Failed writing message. Aborting connection.
  10542. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10543. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10544. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10545. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10546. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10547. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10548. Failed writing message. Aborting connection.
  10549. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10550. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10551. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10552. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10553. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10554. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10555. Failed writing message. Aborting connection.
  10556. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10557. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10558. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10559. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10560. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10561. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10562. Failed writing message. Aborting connection.
  10563. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10564. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10565. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10566. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10567. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10568. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10569. Failed writing message. Aborting connection.
  10570. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10571. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10572. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10573. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10574. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10575. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10576. Failed writing message. Aborting connection.
  10577. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10578. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10579. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10580. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10581. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10582. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10583. Failed writing message. Aborting connection.
  10584. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10585. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10586. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10587. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10588. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10589. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10590. Failed writing message. Aborting connection.
  10591. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10592. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10593. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10594. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10595. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10596. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10597. Failed writing message. Aborting connection.
  10598. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10599. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10600. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10601. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10602. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10603. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10604. Failed writing message. Aborting connection.
  10605. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10606. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10607. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10608. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10609. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10610. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10611. Failed writing message. Aborting connection.
  10612. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10613. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10614. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10615. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10616. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10617. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10618. Failed writing message. Aborting connection.
  10619. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10620. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10621. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10622. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10623. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10624. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10625. Failed writing message. Aborting connection.
  10626. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10627. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10628. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10629. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10630. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10631. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10632. Failed writing message. Aborting connection.
  10633. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10634. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10635. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10636. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10637. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10638. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10639. Failed writing message. Aborting connection.
  10640. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10641. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10642. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10643. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10644. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10645. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10646. Failed writing message. Aborting connection.
  10647. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10648. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10649. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10650. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10651. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10652. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10653. Failed writing message. Aborting connection.
  10654. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10655. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10656. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10657. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10658. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10659. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10660. Failed writing message. Aborting connection.
  10661. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10662. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10663. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10664. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10665. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10666. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10667. Failed writing message. Aborting connection.
  10668. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10669. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10670. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10671. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10672. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10673. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10674. Failed writing message. Aborting connection.
  10675. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10676. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10677. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10678. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10679. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10680. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10681. Failed writing message. Aborting connection.
  10682. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10683. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10684. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10685. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10686. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10687. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10688. Failed writing message. Aborting connection.
  10689. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10690. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10691. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10692. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10693. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10694. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10695. Failed writing message. Aborting connection.
  10696. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10697. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10698. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10699. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10700. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10701. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10702. Failed writing message. Aborting connection.
  10703. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10704. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10705. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10706. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10707. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10708. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10709. Failed writing message. Aborting connection.
  10710. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10711. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10712. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10713. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10714. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10715. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10716. Failed writing message. Aborting connection.
  10717. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10718. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10719. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10720. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10721. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10722. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10723. Failed writing message. Aborting connection.
  10724. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10725. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10726. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10727. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10728. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10729. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10730. Failed writing message. Aborting connection.
  10731. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10732. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10733. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10734. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10735. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10736. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10737. Failed writing message. Aborting connection.
  10738. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10739. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10740. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10741. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10742. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10743. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10744. Failed writing message. Aborting connection.
  10745. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10746. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10747. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10748. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10749. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10750. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10751. Failed writing message. Aborting connection.
  10752. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10753. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10754. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10755. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10756. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10757. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10758. Failed writing message. Aborting connection.
  10759. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10760. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10761. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10762. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10763. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10764. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10765. Failed writing message. Aborting connection.
  10766. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10767. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10768. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10769. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10770. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10771. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10772. Failed writing message. Aborting connection.
  10773. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10774. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10775. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10776. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10777. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10778. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10779. Failed writing message. Aborting connection.
  10780. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10781. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10782. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10783. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10784. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10785. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10786. Failed writing message. Aborting connection.
  10787. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10788. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10789. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10790. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10791. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10792. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10793. Failed writing message. Aborting connection.
  10794. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10795. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10796. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10797. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10798. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10799. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10800. Failed writing message. Aborting connection.
  10801. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10802. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10803. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10804. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10805. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10806. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10807. Failed writing message. Aborting connection.
  10808. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10809. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10810. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10811. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10812. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10813. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10814. Failed writing message. Aborting connection.
  10815. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10816. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10817. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10818. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10819. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10820. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10821. Failed writing message. Aborting connection.
  10822. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10823. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10824. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10825. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10826. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10827. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10828. Failed writing message. Aborting connection.
  10829. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10830. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10831. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10832. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10833. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10834. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10835. Failed writing message. Aborting connection.
  10836. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10837. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10838. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10839. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10840. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10841. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10842. Failed writing message. Aborting connection.
  10843. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10844. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10845. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10846. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10847. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10848. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10849. Failed writing message. Aborting connection.
  10850. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10851. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10852. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10853. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10854. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10855. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10856. Failed writing message. Aborting connection.
  10857. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10858. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10859. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10860. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10861. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10862. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10863. Failed writing message. Aborting connection.
  10864. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10865. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10866. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10867. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10868. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10869. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10870. Failed writing message. Aborting connection.
  10871. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10872. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10873. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10874. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10875. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10876. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10877. Failed writing message. Aborting connection.
  10878. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10879. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10880. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10881. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10882. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10883. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10884. Failed writing message. Aborting connection.
  10885. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10886. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10887. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10888. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10889. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10890. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10891. Failed writing message. Aborting connection.
  10892. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10893. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10894. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10895. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10896. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10897. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10898. Failed writing message. Aborting connection.
  10899. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10900. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10901. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10902. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10903. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10904. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10905. Failed writing message. Aborting connection.
  10906. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10907. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10908. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10909. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10910. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10911. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10912. Failed writing message. Aborting connection.
  10913. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10914. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10915. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10916. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10917. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10918. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10919. Failed writing message. Aborting connection.
  10920. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10921. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10922. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10923. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10924. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10925. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10926. Failed writing message. Aborting connection.
  10927. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10928. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10929. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10930. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10931. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10932. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10933. Failed writing message. Aborting connection.
  10934. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10935. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10936. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10937. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10938. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10939. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10940. Failed writing message. Aborting connection.
  10941. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10942. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10943. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10944. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10945. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10946. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10947. Failed writing message. Aborting connection.
  10948. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10949. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10950. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10951. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10952. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10953. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10954. Failed writing message. Aborting connection.
  10955. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10956. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10957. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10958. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10959. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10960. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10961. Failed writing message. Aborting connection.
  10962. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10963. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10964. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10965. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10966. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10967. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10968. Failed writing message. Aborting connection.
  10969. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10970. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10971. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10972. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10973. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10974. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10975. Failed writing message. Aborting connection.
  10976. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10977. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10978. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10979. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10980. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10981. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10982. Failed writing message. Aborting connection.
  10983. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10984. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10985. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10986. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10987. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10988. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10989. Failed writing message. Aborting connection.
  10990. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10991. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10992. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10993. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  10994. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  10995. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  10996. Failed writing message. Aborting connection.
  10997. System.InvalidOperationException: Writing is not allowed after writer was completed.
  10998. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  10999. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11000. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11001. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11002. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11003. Failed writing message. Aborting connection.
  11004. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11005. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11006. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11007. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11008. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11009. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11010. Failed writing message. Aborting connection.
  11011. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11012. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11013. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11014. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11015. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11016. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11017. Failed writing message. Aborting connection.
  11018. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11019. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11020. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11021. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11022. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11023. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11024. Failed writing message. Aborting connection.
  11025. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11026. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11027. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11028. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11029. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11030. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11031. Failed writing message. Aborting connection.
  11032. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11033. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11034. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11035. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11036. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11037. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11038. Failed writing message. Aborting connection.
  11039. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11040. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11041. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11042. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11043. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11044. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11045. Failed writing message. Aborting connection.
  11046. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11047. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11048. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11049. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11050. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11051. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11052. Failed writing message. Aborting connection.
  11053. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11054. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11055. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11056. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11057. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11058. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11059. Failed writing message. Aborting connection.
  11060. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11061. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11062. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11063. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11064. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11065. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11066. Failed writing message. Aborting connection.
  11067. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11068. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11069. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11070. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11071. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11072. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11073. Failed writing message. Aborting connection.
  11074. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11075. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11076. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11077. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11078. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11079. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11080. Failed writing message. Aborting connection.
  11081. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11082. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11083. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11084. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11085. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11086. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11087. Failed writing message. Aborting connection.
  11088. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11089. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11090. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11091. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11092. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11093. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11094. Failed writing message. Aborting connection.
  11095. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11096. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11097. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11098. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11099. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11100. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11101. Failed writing message. Aborting connection.
  11102. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11103. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11104. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11105. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11106. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11107. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11108. Failed writing message. Aborting connection.
  11109. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11110. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11111. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11112. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11113. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11114. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11115. Failed writing message. Aborting connection.
  11116. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11117. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11118. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11119. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11120. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11121. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11122. Failed writing message. Aborting connection.
  11123. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11124. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11125. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11126. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11127. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11128. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11129. Failed writing message. Aborting connection.
  11130. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11131. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11132. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11133. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11134. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11135. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11136. Failed writing message. Aborting connection.
  11137. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11138. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11139. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11140. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11141. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11142. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11143. Failed writing message. Aborting connection.
  11144. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11145. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11146. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11147. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11148. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11149. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11150. Failed writing message. Aborting connection.
  11151. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11152. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11153. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11154. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11155. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11156. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11157. Failed writing message. Aborting connection.
  11158. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11159. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11160. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11161. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11162. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11163. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11164. Failed writing message. Aborting connection.
  11165. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11166. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11167. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11168. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11169. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11170. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11171. Failed writing message. Aborting connection.
  11172. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11173. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11174. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11175. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11176. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11177. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11178. Failed writing message. Aborting connection.
  11179. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11180. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11181. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11182. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11183. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11184. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11185. Failed writing message. Aborting connection.
  11186. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11187. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11188. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11189. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11190. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11191. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11192. Failed writing message. Aborting connection.
  11193. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11194. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11195. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11196. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11197. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11198. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11199. Failed writing message. Aborting connection.
  11200. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11201. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11202. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11203. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11204. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11205. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  11206. Heartbeat took longer than "00:00:01" at "06/01/2019 00:41:13 +00:00".
  11207. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11208. Failed writing message. Aborting connection.
  11209. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11210. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11211. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11212. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11213. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11214. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11215. Failed writing message. Aborting connection.
  11216. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11217. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11218. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11219. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11220. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11221. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11222. Failed writing message. Aborting connection.
  11223. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11224. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11225. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11226. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11227. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11228. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11229. Failed writing message. Aborting connection.
  11230. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11231. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11232. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11233. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11234. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11235. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11236. Failed writing message. Aborting connection.
  11237. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11238. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11239. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11240. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11241. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11242. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11243. Failed writing message. Aborting connection.
  11244. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11245. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11246. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11247. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11248. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11249. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11250. Failed writing message. Aborting connection.
  11251. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11252. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11253. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11254. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11255. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11256. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11257. Failed writing message. Aborting connection.
  11258. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11259. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11260. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11261. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11262. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11263. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11264. Failed writing message. Aborting connection.
  11265. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11266. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11267. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11268. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11269. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11270. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11271. Failed writing message. Aborting connection.
  11272. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11273. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11274. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11275. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11276. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11277. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11278. Failed writing message. Aborting connection.
  11279. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11280. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11281. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11282. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11283. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11284. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11285. Failed writing message. Aborting connection.
  11286. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11287. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11288. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11289. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11290. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11291. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11292. Failed writing message. Aborting connection.
  11293. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11294. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11295. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11296. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11297. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11298. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11299. Failed writing message. Aborting connection.
  11300. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11301. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11302. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11303. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11304. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11305. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11306. Failed writing message. Aborting connection.
  11307. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11308. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11309. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11310. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11311. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11312. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11313. Failed writing message. Aborting connection.
  11314. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11315. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11316. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11317. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11318. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11319. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11320. Failed writing message. Aborting connection.
  11321. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11322. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11323. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11324. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11325. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11326. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11327. Failed writing message. Aborting connection.
  11328. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11329. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11330. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11331. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11332. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11333. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11334. Failed writing message. Aborting connection.
  11335. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11336. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11337. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11338. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11339. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11340. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11341. Failed writing message. Aborting connection.
  11342. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11343. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11344. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11345. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11346. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11347. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11348. Failed writing message. Aborting connection.
  11349. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11350. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11351. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11352. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11353. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11354. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11355. Failed writing message. Aborting connection.
  11356. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11357. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11358. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11359. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11360. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11361. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11362. Failed writing message. Aborting connection.
  11363. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11364. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11365. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11366. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11367. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11368. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11369. Failed writing message. Aborting connection.
  11370. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11371. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11372. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11373. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11374. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11375. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11376. Failed writing message. Aborting connection.
  11377. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11378. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11379. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11380. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11381. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11382. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11383. Failed writing message. Aborting connection.
  11384. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11385. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11386. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11387. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11388. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11389. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11390. Failed writing message. Aborting connection.
  11391. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11392. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11393. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11394. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11395. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11396. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11397. Failed writing message. Aborting connection.
  11398. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11399. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11400. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11401. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11402. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11403. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11404. Failed writing message. Aborting connection.
  11405. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11406. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11407. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11408. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11409. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11410. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11411. Failed writing message. Aborting connection.
  11412. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11413. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11414. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11415. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11416. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11417. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11418. Failed writing message. Aborting connection.
  11419. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11420. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11421. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11422. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11423. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11424. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11425. Failed writing message. Aborting connection.
  11426. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11427. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11428. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11429. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11430. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11431. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11432. Failed writing message. Aborting connection.
  11433. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11434. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11435. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11436. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11437. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11438. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11439. Failed writing message. Aborting connection.
  11440. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11441. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11442. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11443. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11444. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11445. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11446. Failed writing message. Aborting connection.
  11447. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11448. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11449. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11450. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11451. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11452. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11453. Failed writing message. Aborting connection.
  11454. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11455. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11456. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11457. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11458. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11459. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11460. Failed writing message. Aborting connection.
  11461. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11462. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11463. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11464. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11465. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11466. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11467. Failed writing message. Aborting connection.
  11468. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11469. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11470. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11471. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11472. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11473. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11474. Failed writing message. Aborting connection.
  11475. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11476. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11477. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11478. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11479. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11480. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11481. Failed writing message. Aborting connection.
  11482. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11483. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11484. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11485. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11486. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11487. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  11488. Heartbeat took longer than "00:00:01" at "06/01/2019 00:41:13 +00:00".
  11489. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11490. Failed writing message. Aborting connection.
  11491. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11492. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11493. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11494. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11495. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11496. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11497. Failed writing message. Aborting connection.
  11498. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11499. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11500. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11501. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11502. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11503. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11504. Failed writing message. Aborting connection.
  11505. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11506. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11507. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11508. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11509. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11510. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11511. Failed writing message. Aborting connection.
  11512. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11513. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11514. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11515. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11516. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11517. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11518. Failed writing message. Aborting connection.
  11519. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11520. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11521. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11522. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11523. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11524. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11525. Failed writing message. Aborting connection.
  11526. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11527. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11528. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11529. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11530. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11531. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11532. Failed writing message. Aborting connection.
  11533. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11534. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11535. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11536. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11537. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11538. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11539. Failed writing message. Aborting connection.
  11540. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11541. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11542. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11543. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11544. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11545. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11546. Failed writing message. Aborting connection.
  11547. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11548. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11549. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11550. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11551. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11552. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11553. Failed writing message. Aborting connection.
  11554. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11555. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11556. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11557. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11558. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11559. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11560. Failed writing message. Aborting connection.
  11561. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11562. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11563. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11564. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11565. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11566. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11567. Failed writing message. Aborting connection.
  11568. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11569. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11570. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11571. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11572. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11573. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11574. Failed writing message. Aborting connection.
  11575. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11576. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11577. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11578. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11579. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11580. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11581. Failed writing message. Aborting connection.
  11582. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11583. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11584. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11585. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11586. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11587. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11588. Failed writing message. Aborting connection.
  11589. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11590. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11591. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11592. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11593. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11594. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11595. Failed writing message. Aborting connection.
  11596. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11597. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11598. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11599. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11600. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11601. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11602. Failed writing message. Aborting connection.
  11603. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11604. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11605. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11606. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11607. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11608. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11609. Failed writing message. Aborting connection.
  11610. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11611. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11612. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11613. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11614. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11615. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11616. Failed writing message. Aborting connection.
  11617. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11618. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11619. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11620. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11621. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11622. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11623. Failed writing message. Aborting connection.
  11624. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11625. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11626. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11627. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11628. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11629. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11630. Failed writing message. Aborting connection.
  11631. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11632. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11633. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11634. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11635. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11636. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11637. Failed writing message. Aborting connection.
  11638. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11639. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11640. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11641. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11642. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11643. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11644. Failed writing message. Aborting connection.
  11645. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11646. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11647. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11648. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11649. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11650. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11651. Failed writing message. Aborting connection.
  11652. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11653. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11654. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11655. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11656. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11657. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11658. Failed writing message. Aborting connection.
  11659. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11660. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11661. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11662. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11663. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11664. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11665. Failed writing message. Aborting connection.
  11666. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11667. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11668. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11669. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11670. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11671. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11672. Failed writing message. Aborting connection.
  11673. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11674. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11675. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11676. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11677. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11678. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11679. Failed writing message. Aborting connection.
  11680. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11681. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11682. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11683. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11684. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11685. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11686. Failed writing message. Aborting connection.
  11687. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11688. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11689. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11690. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11691. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11692. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11693. Failed writing message. Aborting connection.
  11694. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11695. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11696. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11697. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11698. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11699. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11700. Failed writing message. Aborting connection.
  11701. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11702. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11703. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11704. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11705. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11706. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11707. Failed writing message. Aborting connection.
  11708. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11709. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11710. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11711. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11712. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11713. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11714. Failed writing message. Aborting connection.
  11715. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11716. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11717. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11718. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11719. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11720. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11721. Failed writing message. Aborting connection.
  11722. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11723. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11724. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11725. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11726. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11727. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11728. Failed writing message. Aborting connection.
  11729. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11730. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11731. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11732. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11733. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11734. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11735. Failed writing message. Aborting connection.
  11736. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11737. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11738. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11739. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11740. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11741. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11742. Failed writing message. Aborting connection.
  11743. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11744. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11745. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11746. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11747. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11748. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11749. Failed writing message. Aborting connection.
  11750. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11751. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11752. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11753. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11754. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11755. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11756. Failed writing message. Aborting connection.
  11757. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11758. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11759. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11760. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11761. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11762. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11763. Failed writing message. Aborting connection.
  11764. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11765. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11766. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11767. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11768. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11769. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11770. Failed writing message. Aborting connection.
  11771. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11772. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11773. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11774. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11775. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11776. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11777. Failed writing message. Aborting connection.
  11778. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11779. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11780. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11781. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11782. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11783. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11784. Failed writing message. Aborting connection.
  11785. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11786. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11787. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11788. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11789. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11790. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11791. Failed writing message. Aborting connection.
  11792. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11793. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11794. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11795. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11796. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11797. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11798. Failed writing message. Aborting connection.
  11799. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11800. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11801. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11802. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11803. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11804. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11805. Failed writing message. Aborting connection.
  11806. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11807. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11808. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11809. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11810. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11811. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11812. Failed writing message. Aborting connection.
  11813. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11814. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11815. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11816. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11817. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11818. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11819. Failed writing message. Aborting connection.
  11820. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11821. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11822. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11823. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11824. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11825. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11826. Failed writing message. Aborting connection.
  11827. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11828. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11829. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11830. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11831. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11832. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11833. Failed writing message. Aborting connection.
  11834. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11835. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11836. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11837. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11838. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11839. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11840. Failed writing message. Aborting connection.
  11841. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11842. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11843. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11844. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11845. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11846. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11847. Failed writing message. Aborting connection.
  11848. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11849. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11850. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11851. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11852. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11853. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11854. Failed writing message. Aborting connection.
  11855. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11856. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11857. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11858. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11859. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11860. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11861. Failed writing message. Aborting connection.
  11862. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11863. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11864. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11865. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11866. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11867. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11868. Failed writing message. Aborting connection.
  11869. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11870. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11871. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11872. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11873. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11874. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11875. Failed writing message. Aborting connection.
  11876. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11877. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11878. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11879. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11880. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11881. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11882. Failed writing message. Aborting connection.
  11883. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11884. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11885. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11886. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11887. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11888. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11889. Failed writing message. Aborting connection.
  11890. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11891. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11892. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11893. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11894. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11895. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11896. Failed writing message. Aborting connection.
  11897. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11898. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11899. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11900. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11901. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11902. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11903. Failed writing message. Aborting connection.
  11904. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11905. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11906. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11907. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11908. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11909. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11910. Failed writing message. Aborting connection.
  11911. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11912. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11913. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11914. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11915. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11916. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11917. Failed writing message. Aborting connection.
  11918. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11919. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11920. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11921. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11922. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11923. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11924. Failed writing message. Aborting connection.
  11925. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11926. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11927. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11928. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11929. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11930. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11931. Failed writing message. Aborting connection.
  11932. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11933. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11934. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11935. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11936. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11937. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11938. Failed writing message. Aborting connection.
  11939. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11940. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11941. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11942. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11943. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11944. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11945. Failed writing message. Aborting connection.
  11946. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11947. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11948. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11949. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11950. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11951. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11952. Failed writing message. Aborting connection.
  11953. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11954. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11955. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11956. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11957. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11958. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11959. Failed writing message. Aborting connection.
  11960. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11961. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11962. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11963. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11964. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11965. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11966. Failed writing message. Aborting connection.
  11967. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11968. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11969. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11970. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11971. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11972. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11973. Failed writing message. Aborting connection.
  11974. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11975. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11976. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11977. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11978. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11979. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11980. Failed writing message. Aborting connection.
  11981. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11982. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11983. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11984. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11985. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11986. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11987. Failed writing message. Aborting connection.
  11988. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11989. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11990. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11991. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11992. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  11993. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  11994. Failed writing message. Aborting connection.
  11995. System.InvalidOperationException: Writing is not allowed after writer was completed.
  11996. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  11997. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11998. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  11999. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12000. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12001. Failed writing message. Aborting connection.
  12002. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12003. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12004. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12005. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12006. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12007. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12008. Failed writing message. Aborting connection.
  12009. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12010. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12011. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12012. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12013. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12014. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12015. Failed writing message. Aborting connection.
  12016. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12017. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12018. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12019. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12020. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12021. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12022. Failed writing message. Aborting connection.
  12023. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12024. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12025. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12026. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12027. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12028. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12029. Failed writing message. Aborting connection.
  12030. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12031. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12032. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12033. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12034. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12035. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12036. Failed writing message. Aborting connection.
  12037. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12038. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12039. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12040. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12041. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12042. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12043. Failed writing message. Aborting connection.
  12044. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12045. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12046. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12047. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12048. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12049. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12050. Failed writing message. Aborting connection.
  12051. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12052. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12053. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12054. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12055. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12056. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12057. Failed writing message. Aborting connection.
  12058. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12059. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12060. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12061. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12062. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12063. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12064. Failed writing message. Aborting connection.
  12065. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12066. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12067. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12068. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12069. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12070. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12071. Failed writing message. Aborting connection.
  12072. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12073. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12074. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12075. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12076. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12077. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12078. Failed writing message. Aborting connection.
  12079. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12080. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12081. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12082. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12083. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12084. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12085. Failed writing message. Aborting connection.
  12086. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12087. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12088. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12089. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12090. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12091. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12092. Failed writing message. Aborting connection.
  12093. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12094. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12095. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12096. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12097. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12098. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12099. Failed writing message. Aborting connection.
  12100. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12101. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12102. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12103. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12104. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12105. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12106. Failed writing message. Aborting connection.
  12107. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12108. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12109. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12110. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12111. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12112. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12113. Failed writing message. Aborting connection.
  12114. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12115. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12116. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12117. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12118. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12119. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12120. Failed writing message. Aborting connection.
  12121. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12122. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12123. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12124. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12125. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12126. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12127. Failed writing message. Aborting connection.
  12128. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12129. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12130. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12131. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12132. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12133. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12134. Failed writing message. Aborting connection.
  12135. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12136. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12137. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12138. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12139. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12140. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12141. Failed writing message. Aborting connection.
  12142. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12143. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12144. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12145. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12146. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12147. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12148. Failed writing message. Aborting connection.
  12149. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12150. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12151. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12152. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12153. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12154. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12155. Failed writing message. Aborting connection.
  12156. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12157. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12158. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12159. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12160. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12161. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12162. Failed writing message. Aborting connection.
  12163. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12164. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12165. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12166. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12167. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12168. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12169. Failed writing message. Aborting connection.
  12170. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12171. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12172. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12173. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12174. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12175. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12176. Failed writing message. Aborting connection.
  12177. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12178. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12179. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12180. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12181. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12182. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12183. Failed writing message. Aborting connection.
  12184. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12185. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12186. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12187. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12188. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12189. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12190. Failed writing message. Aborting connection.
  12191. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12192. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12193. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12194. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12195. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12196. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12197. Failed writing message. Aborting connection.
  12198. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12199. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12200. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12201. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12202. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12203. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12204. Failed writing message. Aborting connection.
  12205. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12206. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12207. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12208. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12209. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12210. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12211. Failed writing message. Aborting connection.
  12212. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12213. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12214. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12215. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12216. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12217. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12218. Failed writing message. Aborting connection.
  12219. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12220. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12221. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12222. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12223. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12224. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12225. Failed writing message. Aborting connection.
  12226. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12227. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12228. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12229. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12230. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12231. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12232. Failed writing message. Aborting connection.
  12233. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12234. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12235. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12236. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12237. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12238. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12239. Failed writing message. Aborting connection.
  12240. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12241. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12242. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12243. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12244. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12245. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12246. Failed writing message. Aborting connection.
  12247. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12248. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12249. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12250. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12251. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12252. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12253. Failed writing message. Aborting connection.
  12254. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12255. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12256. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12257. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12258. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12259. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12260. Failed writing message. Aborting connection.
  12261. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12262. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12263. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12264. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12265. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12266. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12267. Failed writing message. Aborting connection.
  12268. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12269. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12270. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12271. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12272. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12273. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12274. Failed writing message. Aborting connection.
  12275. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12276. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12277. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12278. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12279. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12280. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12281. Failed writing message. Aborting connection.
  12282. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12283. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12284. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12285. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12286. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12287. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12288. Failed writing message. Aborting connection.
  12289. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12290. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12291. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12292. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12293. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12294. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12295. Failed writing message. Aborting connection.
  12296. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12297. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12298. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12299. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12300. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12301. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12302. Failed writing message. Aborting connection.
  12303. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12304. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12305. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12306. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12307. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12308. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12309. Failed writing message. Aborting connection.
  12310. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12311. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12312. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12313. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12314. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12315. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12316. Failed writing message. Aborting connection.
  12317. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12318. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12319. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12320. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12321. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12322. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12323. Failed writing message. Aborting connection.
  12324. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12325. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12326. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12327. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12328. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12329. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12330. Failed writing message. Aborting connection.
  12331. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12332. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12333. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12334. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12335. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12336. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12337. Failed writing message. Aborting connection.
  12338. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12339. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12340. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12341. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12342. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12343. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12344. Failed writing message. Aborting connection.
  12345. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12346. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12347. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12348. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12349. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12350. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12351. Failed writing message. Aborting connection.
  12352. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12353. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12354. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12355. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12356. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12357. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12358. Failed writing message. Aborting connection.
  12359. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12360. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12361. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12362. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12363. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12364. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12365. Failed writing message. Aborting connection.
  12366. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12367. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12368. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12369. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12370. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12371. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12372. Failed writing message. Aborting connection.
  12373. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12374. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12375. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12376. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12377. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12378. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12379. Failed writing message. Aborting connection.
  12380. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12381. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12382. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12383. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12384. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12385. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12386. Failed writing message. Aborting connection.
  12387. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12388. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12389. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12390. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12391. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12392. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12393. Failed writing message. Aborting connection.
  12394. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12395. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12396. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12397. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12398. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12399. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12400. Failed writing message. Aborting connection.
  12401. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12402. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12403. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12404. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12405. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12406. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12407. Failed writing message. Aborting connection.
  12408. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12409. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12410. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12411. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12412. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12413. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12414. Failed writing message. Aborting connection.
  12415. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12416. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12417. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12418. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12419. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12420. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12421. Failed writing message. Aborting connection.
  12422. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12423. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12424. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12425. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12426. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12427. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12428. Failed writing message. Aborting connection.
  12429. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12430. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12431. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12432. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12433. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12434. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12435. Failed writing message. Aborting connection.
  12436. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12437. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12438. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12439. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12440. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12441. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12442. Failed writing message. Aborting connection.
  12443. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12444. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12445. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12446. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12447. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12448. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12449. Failed writing message. Aborting connection.
  12450. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12451. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12452. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12453. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12454. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12455. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12456. Failed writing message. Aborting connection.
  12457. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12458. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12459. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12460. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12461. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12462. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12463. Failed writing message. Aborting connection.
  12464. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12465. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12466. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12467. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12468. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12469. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12470. Failed writing message. Aborting connection.
  12471. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12472. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12473. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12474. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12475. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12476. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12477. Failed writing message. Aborting connection.
  12478. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12479. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12480. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12481. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12482. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12483. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12484. Failed writing message. Aborting connection.
  12485. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12486. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12487. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12488. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12489. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12490. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12491. Failed writing message. Aborting connection.
  12492. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12493. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12494. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12495. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12496. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12497. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12498. Failed writing message. Aborting connection.
  12499. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12500. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12501. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12502. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12503. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12504. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12505. Failed writing message. Aborting connection.
  12506. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12507. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12508. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12509. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12510. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12511. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12512. Failed writing message. Aborting connection.
  12513. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12514. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12515. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12516. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12517. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12518. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12519. Failed writing message. Aborting connection.
  12520. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12521. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12522. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12523. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12524. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12525. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12526. Failed writing message. Aborting connection.
  12527. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12528. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12529. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12530. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12531. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12532. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12533. Failed writing message. Aborting connection.
  12534. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12535. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12536. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12537. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12538. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12539. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12540. Failed writing message. Aborting connection.
  12541. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12542. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12543. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12544. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12545. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12546. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12547. Failed writing message. Aborting connection.
  12548. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12549. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12550. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12551. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12552. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12553. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12554. Failed writing message. Aborting connection.
  12555. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12556. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12557. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12558. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12559. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12560. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12561. Failed writing message. Aborting connection.
  12562. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12563. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12564. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12565. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12566. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12567. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12568. Failed writing message. Aborting connection.
  12569. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12570. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12571. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12572. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12573. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12574. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12575. Failed writing message. Aborting connection.
  12576. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12577. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12578. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12579. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12580. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12581. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12582. Failed writing message. Aborting connection.
  12583. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12584. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12585. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12586. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12587. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12588. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12589. Failed writing message. Aborting connection.
  12590. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12591. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12592. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12593. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12594. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12595. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12596. Failed writing message. Aborting connection.
  12597. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12598. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12599. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12600. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12601. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12602. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12603. Failed writing message. Aborting connection.
  12604. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12605. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12606. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12607. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12608. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12609. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12610. Failed writing message. Aborting connection.
  12611. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12612. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12613. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12614. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12615. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12616. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12617. Failed writing message. Aborting connection.
  12618. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12619. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12620. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12621. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12622. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12623. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12624. Failed writing message. Aborting connection.
  12625. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12626. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12627. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12628. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12629. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12630. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12631. Failed writing message. Aborting connection.
  12632. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12633. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12634. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12635. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12636. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12637. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12638. Failed writing message. Aborting connection.
  12639. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12640. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12641. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12642. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12643. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12644. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12645. Failed writing message. Aborting connection.
  12646. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12647. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12648. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12649. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12650. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12651. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12652. Failed writing message. Aborting connection.
  12653. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12654. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12655. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12656. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12657. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12658. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12659. Failed writing message. Aborting connection.
  12660. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12661. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12662. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12663. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12664. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12665. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12666. Failed writing message. Aborting connection.
  12667. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12668. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12669. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12670. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12671. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12672. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12673. Failed writing message. Aborting connection.
  12674. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12675. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12676. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12677. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12678. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12679. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12680. Failed writing message. Aborting connection.
  12681. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12682. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12683. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12684. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12685. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12686. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12687. Failed writing message. Aborting connection.
  12688. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12689. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12690. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12691. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12692. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12693. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12694. Failed writing message. Aborting connection.
  12695. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12696. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12697. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12698. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12699. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12700. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12701. Failed writing message. Aborting connection.
  12702. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12703. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12704. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12705. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12706. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12707. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12708. Failed writing message. Aborting connection.
  12709. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12710. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12711. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12712. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12713. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12714. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12715. Failed writing message. Aborting connection.
  12716. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12717. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12718. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12719. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12720. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12721. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12722. Failed writing message. Aborting connection.
  12723. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12724. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12725. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12726. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12727. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12728. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12729. Failed writing message. Aborting connection.
  12730. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12731. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12732. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12733. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12734. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12735. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12736. Failed writing message. Aborting connection.
  12737. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12738. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12739. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12740. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12741. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12742. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12743. Failed writing message. Aborting connection.
  12744. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12745. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12746. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12747. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12748. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12749. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12750. Failed writing message. Aborting connection.
  12751. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12752. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12753. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12754. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12755. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12756. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12757. Failed writing message. Aborting connection.
  12758. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12759. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12760. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12761. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12762. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12763. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12764. Failed writing message. Aborting connection.
  12765. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12766. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12767. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12768. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12769. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12770. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12771. Failed writing message. Aborting connection.
  12772. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12773. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12774. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12775. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12776. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12777. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12778. Failed writing message. Aborting connection.
  12779. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12780. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12781. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12782. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12783. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12784. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12785. Failed writing message. Aborting connection.
  12786. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12787. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12788. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12789. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12790. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12791. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12792. Failed writing message. Aborting connection.
  12793. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12794. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12795. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12796. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12797. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12798. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12799. Failed writing message. Aborting connection.
  12800. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12801. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12802. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12803. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12804. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12805. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12806. Failed writing message. Aborting connection.
  12807. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12808. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12809. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12810. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12811. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12812. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12813. Failed writing message. Aborting connection.
  12814. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12815. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12816. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12817. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12818. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12819. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12820. Failed writing message. Aborting connection.
  12821. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12822. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12823. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12824. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12825. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12826. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12827. Failed writing message. Aborting connection.
  12828. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12829. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12830. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12831. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12832. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12833. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12834. Failed writing message. Aborting connection.
  12835. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12836. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12837. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12838. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12839. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12840. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12841. Failed writing message. Aborting connection.
  12842. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12843. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12844. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12845. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12846. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12847. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12848. Failed writing message. Aborting connection.
  12849. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12850. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12851. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12852. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12853. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12854. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12855. Failed writing message. Aborting connection.
  12856. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12857. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12858. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12859. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12860. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12861. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12862. Failed writing message. Aborting connection.
  12863. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12864. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12865. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12866. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12867. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12868. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12869. Failed writing message. Aborting connection.
  12870. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12871. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12872. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12873. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12874. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12875. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12876. Failed writing message. Aborting connection.
  12877. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12878. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12879. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12880. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12881. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12882. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12883. Failed writing message. Aborting connection.
  12884. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12885. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12886. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12887. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12888. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12889. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12890. Failed writing message. Aborting connection.
  12891. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12892. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12893. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12894. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12895. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12896. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12897. Failed writing message. Aborting connection.
  12898. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12899. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12900. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12901. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12902. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12903. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12904. Failed writing message. Aborting connection.
  12905. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12906. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12907. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12908. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12909. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12910. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12911. Failed writing message. Aborting connection.
  12912. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12913. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12914. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12915. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12916. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12917. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12918. Failed writing message. Aborting connection.
  12919. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12920. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12921. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12922. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12923. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12924. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12925. Failed writing message. Aborting connection.
  12926. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12927. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12928. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12929. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12930. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12931. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12932. Failed writing message. Aborting connection.
  12933. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12934. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12935. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12936. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12937. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12938. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12939. Failed writing message. Aborting connection.
  12940. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12941. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12942. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12943. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12944. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12945. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12946. Failed writing message. Aborting connection.
  12947. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12948. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12949. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12950. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12951. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12952. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12953. Failed writing message. Aborting connection.
  12954. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12955. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12956. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12957. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12958. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12959. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12960. Failed writing message. Aborting connection.
  12961. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12962. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12963. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12964. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12965. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12966. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12967. Failed writing message. Aborting connection.
  12968. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12969. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12970. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12971. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12972. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12973. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12974. Failed writing message. Aborting connection.
  12975. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12976. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12977. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12978. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12979. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12980. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12981. Failed writing message. Aborting connection.
  12982. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12983. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12984. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12985. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12986. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12987. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12988. Failed writing message. Aborting connection.
  12989. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12990. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12991. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12992. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12993. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  12994. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  12995. Failed writing message. Aborting connection.
  12996. System.InvalidOperationException: Writing is not allowed after writer was completed.
  12997. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  12998. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  12999. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13000. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13001. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13002. Failed writing message. Aborting connection.
  13003. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13004. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13005. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13006. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13007. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13008. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13009. Failed writing message. Aborting connection.
  13010. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13011. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13012. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13013. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13014. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13015. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13016. Failed writing message. Aborting connection.
  13017. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13018. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13019. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13020. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13021. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13022. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13023. Failed writing message. Aborting connection.
  13024. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13025. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13026. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13027. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13028. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13029. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13030. Failed writing message. Aborting connection.
  13031. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13032. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13033. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13034. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13035. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13036. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13037. Failed writing message. Aborting connection.
  13038. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13039. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13040. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13041. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13042. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13043. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13044. Failed writing message. Aborting connection.
  13045. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13046. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13047. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13048. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13049. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13050. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13051. Failed writing message. Aborting connection.
  13052. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13053. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13054. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13055. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13056. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13057. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13058. Failed writing message. Aborting connection.
  13059. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13060. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13061. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13062. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13063. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13064. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13065. Failed writing message. Aborting connection.
  13066. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13067. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13068. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13069. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13070. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13071. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13072. Failed writing message. Aborting connection.
  13073. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13074. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13075. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13076. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13077. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13078. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13079. Failed writing message. Aborting connection.
  13080. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13081. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13082. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13083. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13084. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13085. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13086. Failed writing message. Aborting connection.
  13087. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13088. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13089. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13090. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13091. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13092. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13093. Failed writing message. Aborting connection.
  13094. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13095. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13096. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13097. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13098. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13099. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13100. Failed writing message. Aborting connection.
  13101. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13102. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13103. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13104. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13105. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13106. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13107. Failed writing message. Aborting connection.
  13108. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13109. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13110. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13111. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13112. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13113. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13114. Failed writing message. Aborting connection.
  13115. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13116. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13117. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13118. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13119. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13120. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13121. Failed writing message. Aborting connection.
  13122. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13123. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13124. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13125. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13126. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13127. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13128. Failed writing message. Aborting connection.
  13129. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13130. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13131. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13132. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13133. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13134. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13135. Failed writing message. Aborting connection.
  13136. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13137. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13138. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13139. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13140. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13141. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13142. Failed writing message. Aborting connection.
  13143. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13144. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13145. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13146. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13147. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13148. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13149. Failed writing message. Aborting connection.
  13150. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13151. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13152. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13153. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13154. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13155. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13156. Failed writing message. Aborting connection.
  13157. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13158. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13159. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13160. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13161. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13162. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13163. Failed writing message. Aborting connection.
  13164. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13165. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13166. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13167. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13168. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13169. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13170. Failed writing message. Aborting connection.
  13171. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13172. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13173. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13174. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13175. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13176. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13177. Failed writing message. Aborting connection.
  13178. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13179. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13180. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13181. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13182. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13183. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13184. Failed writing message. Aborting connection.
  13185. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13186. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13187. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13188. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13189. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13190. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13191. Failed writing message. Aborting connection.
  13192. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13193. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13194. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13195. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13196. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13197. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13198. Failed writing message. Aborting connection.
  13199. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13200. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13201. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13202. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13203. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13204. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13205. Failed writing message. Aborting connection.
  13206. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13207. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13208. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13209. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13210. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13211. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13212. Failed writing message. Aborting connection.
  13213. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13214. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13215. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13216. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13217. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13218. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  13219. Heartbeat took longer than "00:00:01" at "06/01/2019 00:41:14 +00:00".
  13220. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13221. Failed writing message. Aborting connection.
  13222. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13223. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13224. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13225. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13226. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13227. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13228. Failed writing message. Aborting connection.
  13229. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13230. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13231. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13232. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13233. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13234. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13235. Failed writing message. Aborting connection.
  13236. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13237. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13238. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13239. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13240. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13241. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13242. Failed writing message. Aborting connection.
  13243. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13244. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13245. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13246. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13247. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13248. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13249. Failed writing message. Aborting connection.
  13250. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13251. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13252. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13253. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13254. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13255. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13256. Failed writing message. Aborting connection.
  13257. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13258. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13259. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13260. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13261. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13262. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13263. Failed writing message. Aborting connection.
  13264. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13265. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13266. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13267. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13268. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13269. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13270. Failed writing message. Aborting connection.
  13271. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13272. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13273. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13274. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13275. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13276. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13277. Failed writing message. Aborting connection.
  13278. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13279. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13280. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13281. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13282. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13283. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13284. Failed writing message. Aborting connection.
  13285. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13286. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13287. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13288. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13289. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13290. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13291. Failed writing message. Aborting connection.
  13292. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13293. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13294. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13295. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13296. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13297. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13298. Failed writing message. Aborting connection.
  13299. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13300. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13301. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13302. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13303. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13304. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13305. Failed writing message. Aborting connection.
  13306. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13307. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13308. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13309. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13310. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13311. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13312. Failed writing message. Aborting connection.
  13313. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13314. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13315. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13316. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13317. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13318. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13319. Failed writing message. Aborting connection.
  13320. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13321. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13322. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13323. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13324. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13325. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13326. Failed writing message. Aborting connection.
  13327. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13328. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13329. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13330. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13331. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13332. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13333. Failed writing message. Aborting connection.
  13334. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13335. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13336. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13337. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13338. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13339. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13340. Failed writing message. Aborting connection.
  13341. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13342. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13343. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13344. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13345. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13346. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13347. Failed writing message. Aborting connection.
  13348. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13349. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13350. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13351. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13352. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13353. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13354. Failed writing message. Aborting connection.
  13355. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13356. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13357. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13358. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13359. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13360. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13361. Failed writing message. Aborting connection.
  13362. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13363. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13364. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13365. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13366. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13367. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13368. Failed writing message. Aborting connection.
  13369. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13370. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13371. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13372. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13373. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13374. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13375. Failed writing message. Aborting connection.
  13376. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13377. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13378. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13379. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13380. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13381. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13382. Failed writing message. Aborting connection.
  13383. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13384. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13385. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13386. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13387. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13388. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13389. Failed writing message. Aborting connection.
  13390. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13391. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13392. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13393. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13394. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13395. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13396. Failed writing message. Aborting connection.
  13397. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13398. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13399. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13400. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13401. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13402. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13403. Failed writing message. Aborting connection.
  13404. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13405. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13406. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13407. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13408. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13409. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13410. Failed writing message. Aborting connection.
  13411. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13412. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13413. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13414. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13415. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13416. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13417. Failed writing message. Aborting connection.
  13418. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13419. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13420. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13421. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13422. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13423. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13424. Failed writing message. Aborting connection.
  13425. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13426. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13427. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13428. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13429. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13430. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13431. Failed writing message. Aborting connection.
  13432. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13433. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13434. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13435. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13436. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13437. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13438. Failed writing message. Aborting connection.
  13439. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13440. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13441. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13442. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13443. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13444. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13445. Failed writing message. Aborting connection.
  13446. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13447. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13448. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13449. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13450. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13451. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13452. Failed writing message. Aborting connection.
  13453. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13454. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13455. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13456. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13457. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13458. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13459. Failed writing message. Aborting connection.
  13460. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13461. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13462. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13463. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13464. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13465. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13466. Failed writing message. Aborting connection.
  13467. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13468. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13469. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13470. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13471. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13472. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13473. Failed writing message. Aborting connection.
  13474. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13475. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13476. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13477. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13478. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13479. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13480. Failed writing message. Aborting connection.
  13481. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13482. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13483. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13484. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13485. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13486. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13487. Failed writing message. Aborting connection.
  13488. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13489. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13490. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13491. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13492. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13493. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13494. Failed writing message. Aborting connection.
  13495. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13496. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13497. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13498. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13499. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13500. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13501. Failed writing message. Aborting connection.
  13502. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13503. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13504. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13505. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13506. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13507. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13508. Failed writing message. Aborting connection.
  13509. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13510. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13511. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13512. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13513. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13514. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13515. Failed writing message. Aborting connection.
  13516. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13517. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13518. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13519. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13520. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13521. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13522. Failed writing message. Aborting connection.
  13523. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13524. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13525. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13526. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13527. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13528. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13529. Failed writing message. Aborting connection.
  13530. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13531. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13532. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13533. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13534. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13535. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13536. Failed writing message. Aborting connection.
  13537. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13538. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13539. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13540. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13541. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13542. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13543. Failed writing message. Aborting connection.
  13544. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13545. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13546. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13547. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13548. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13549. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13550. Failed writing message. Aborting connection.
  13551. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13552. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13553. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13554. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13555. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13556. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13557. Failed writing message. Aborting connection.
  13558. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13559. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13560. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13561. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13562. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13563. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13564. Failed writing message. Aborting connection.
  13565. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13566. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13567. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13568. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13569. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13570. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13571. Failed writing message. Aborting connection.
  13572. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13573. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13574. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13575. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13576. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13577. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13578. Failed writing message. Aborting connection.
  13579. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13580. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13581. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13582. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13583. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13584. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13585. Failed writing message. Aborting connection.
  13586. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13587. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13588. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13589. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13590. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13591. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13592. Failed writing message. Aborting connection.
  13593. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13594. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13595. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13596. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13597. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13598. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13599. Failed writing message. Aborting connection.
  13600. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13601. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13602. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13603. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13604. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13605. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13606. Failed writing message. Aborting connection.
  13607. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13608. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13609. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13610. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13611. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13612. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13613. Failed writing message. Aborting connection.
  13614. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13615. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13616. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13617. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13618. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13619. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13620. Failed writing message. Aborting connection.
  13621. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13622. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13623. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13624. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13625. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13626. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13627. Failed writing message. Aborting connection.
  13628. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13629. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13630. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13631. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13632. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13633. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13634. Failed writing message. Aborting connection.
  13635. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13636. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13637. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13638. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13639. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13640. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13641. Failed writing message. Aborting connection.
  13642. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13643. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13644. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13645. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13646. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13647. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13648. Failed writing message. Aborting connection.
  13649. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13650. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13651. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13652. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13653. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13654. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13655. Failed writing message. Aborting connection.
  13656. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13657. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13658. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13659. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13660. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13661. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13662. Failed writing message. Aborting connection.
  13663. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13664. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13665. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13666. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13667. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13668. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13669. Failed writing message. Aborting connection.
  13670. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13671. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13672. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13673. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13674. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13675. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13676. Failed writing message. Aborting connection.
  13677. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13678. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13679. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13680. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13681. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13682. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13683. Failed writing message. Aborting connection.
  13684. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13685. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13686. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13687. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13688. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13689. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13690. Failed writing message. Aborting connection.
  13691. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13692. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13693. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13694. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13695. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13696. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13697. Failed writing message. Aborting connection.
  13698. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13699. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13700. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13701. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13702. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13703. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13704. Failed writing message. Aborting connection.
  13705. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13706. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13707. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13708. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13709. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13710. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13711. Failed writing message. Aborting connection.
  13712. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13713. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13714. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13715. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13716. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13717. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13718. Failed writing message. Aborting connection.
  13719. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13720. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13721. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13722. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13723. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13724. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13725. Failed writing message. Aborting connection.
  13726. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13727. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13728. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13729. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13730. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13731. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13732. Failed writing message. Aborting connection.
  13733. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13734. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13735. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13736. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13737. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13738. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13739. Failed writing message. Aborting connection.
  13740. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13741. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13742. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13743. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13744. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13745. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13746. Failed writing message. Aborting connection.
  13747. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13748. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13749. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13750. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13751. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13752. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13753. Failed writing message. Aborting connection.
  13754. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13755. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13756. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13757. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13758. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13759. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13760. Failed writing message. Aborting connection.
  13761. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13762. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13763. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13764. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13765. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13766. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13767. Failed writing message. Aborting connection.
  13768. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13769. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13770. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13771. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13772. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13773. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13774. Failed writing message. Aborting connection.
  13775. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13776. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13777. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13778. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13779. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13780. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13781. Failed writing message. Aborting connection.
  13782. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13783. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13784. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13785. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13786. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13787. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13788. Failed writing message. Aborting connection.
  13789. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13790. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13791. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13792. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13793. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13794. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13795. Failed writing message. Aborting connection.
  13796. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13797. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13798. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13799. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13800. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13801. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13802. Failed writing message. Aborting connection.
  13803. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13804. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13805. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13806. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13807. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13808. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13809. Failed writing message. Aborting connection.
  13810. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13811. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13812. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13813. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13814. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13815. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13816. Failed writing message. Aborting connection.
  13817. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13818. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13819. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13820. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13821. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13822. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13823. Failed writing message. Aborting connection.
  13824. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13825. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13826. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13827. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13828. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13829. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13830. Failed writing message. Aborting connection.
  13831. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13832. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13833. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13834. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13835. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13836. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13837. Failed writing message. Aborting connection.
  13838. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13839. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13840. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13841. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13842. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13843. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13844. Failed writing message. Aborting connection.
  13845. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13846. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13847. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13848. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13849. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13850. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13851. Failed writing message. Aborting connection.
  13852. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13853. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13854. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13855. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13856. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13857. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13858. Failed writing message. Aborting connection.
  13859. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13860. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13861. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13862. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13863. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13864. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13865. Failed writing message. Aborting connection.
  13866. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13867. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13868. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13869. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13870. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13871. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13872. Failed writing message. Aborting connection.
  13873. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13874. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13875. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13876. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13877. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13878. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13879. Failed writing message. Aborting connection.
  13880. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13881. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13882. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13883. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13884. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13885. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13886. Failed writing message. Aborting connection.
  13887. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13888. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13889. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13890. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13891. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13892. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13893. Failed writing message. Aborting connection.
  13894. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13895. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13896. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13897. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13898. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13899. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13900. Failed writing message. Aborting connection.
  13901. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13902. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13903. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13904. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13905. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13906. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13907. Failed writing message. Aborting connection.
  13908. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13909. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13910. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13911. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13912. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13913. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13914. Failed writing message. Aborting connection.
  13915. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13916. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13917. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13918. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13919. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13920. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13921. Failed writing message. Aborting connection.
  13922. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13923. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13924. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13925. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13926. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13927. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13928. Failed writing message. Aborting connection.
  13929. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13930. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13931. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13932. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13933. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13934. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13935. Failed writing message. Aborting connection.
  13936. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13937. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13938. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13939. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13940. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13941. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13942. Failed writing message. Aborting connection.
  13943. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13944. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13945. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13946. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13947. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13948. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13949. Failed writing message. Aborting connection.
  13950. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13951. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13952. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13953. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13954. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13955. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13956. Failed writing message. Aborting connection.
  13957. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13958. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13959. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13960. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13961. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13962. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13963. Failed writing message. Aborting connection.
  13964. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13965. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13966. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13967. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13968. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13969. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13970. Failed writing message. Aborting connection.
  13971. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13972. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13973. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13974. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13975. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13976. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13977. Failed writing message. Aborting connection.
  13978. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13979. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13980. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13981. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13982. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13983. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13984. Failed writing message. Aborting connection.
  13985. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13986. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13987. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13988. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13989. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13990. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13991. Failed writing message. Aborting connection.
  13992. System.InvalidOperationException: Writing is not allowed after writer was completed.
  13993. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  13994. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13995. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  13996. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  13997. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  13998. Failed writing message. Aborting connection.
  13999. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14000. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14001. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14002. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14003. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14004. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14005. Failed writing message. Aborting connection.
  14006. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14007. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14008. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14009. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14010. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14011. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14012. Failed writing message. Aborting connection.
  14013. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14014. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14015. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14016. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14017. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14018. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14019. Failed writing message. Aborting connection.
  14020. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14021. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14022. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14023. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14024. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14025. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14026. Failed writing message. Aborting connection.
  14027. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14028. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14029. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14030. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14031. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14032. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14033. Failed writing message. Aborting connection.
  14034. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14035. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14036. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14037. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14038. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14039. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14040. Failed writing message. Aborting connection.
  14041. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14042. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14043. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14044. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14045. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14046. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14047. Failed writing message. Aborting connection.
  14048. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14049. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14050. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14051. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14052. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14053. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14054. Failed writing message. Aborting connection.
  14055. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14056. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14057. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14058. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14059. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14060. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14061. Failed writing message. Aborting connection.
  14062. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14063. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14064. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14065. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14066. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14067. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14068. Failed writing message. Aborting connection.
  14069. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14070. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14071. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14072. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14073. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14074. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14075. Failed writing message. Aborting connection.
  14076. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14077. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14078. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14079. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14080. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14081. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14082. Failed writing message. Aborting connection.
  14083. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14084. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14085. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14086. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14087. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14088. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14089. Failed writing message. Aborting connection.
  14090. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14091. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14092. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14093. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14094. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14095. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14096. Failed writing message. Aborting connection.
  14097. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14098. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14099. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14100. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14101. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14102. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14103. Failed writing message. Aborting connection.
  14104. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14105. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14106. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14107. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14108. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14109. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14110. Failed writing message. Aborting connection.
  14111. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14112. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14113. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14114. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14115. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14116. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14117. Failed writing message. Aborting connection.
  14118. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14119. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14120. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14121. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14122. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14123. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14124. Failed writing message. Aborting connection.
  14125. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14126. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14127. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14128. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14129. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14130. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14131. Failed writing message. Aborting connection.
  14132. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14133. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14134. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14135. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14136. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14137. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14138. Failed writing message. Aborting connection.
  14139. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14140. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14141. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14142. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14143. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14144. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14145. Failed writing message. Aborting connection.
  14146. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14147. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14148. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14149. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14150. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14151. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14152. Failed writing message. Aborting connection.
  14153. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14154. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14155. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14156. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14157. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14158. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14159. Failed writing message. Aborting connection.
  14160. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14161. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14162. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14163. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14164. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14165. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14166. Failed writing message. Aborting connection.
  14167. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14168. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14169. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14170. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14171. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14172. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14173. Failed writing message. Aborting connection.
  14174. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14175. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14176. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14177. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14178. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14179. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14180. Failed writing message. Aborting connection.
  14181. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14182. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14183. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14184. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14185. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14186. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14187. Failed writing message. Aborting connection.
  14188. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14189. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14190. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14191. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14192. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14193. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14194. Failed writing message. Aborting connection.
  14195. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14196. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14197. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14198. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14199. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14200. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14201. Failed writing message. Aborting connection.
  14202. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14203. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14204. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14205. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14206. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14207. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14208. Failed writing message. Aborting connection.
  14209. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14210. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14211. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14212. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14213. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14214. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14215. Failed writing message. Aborting connection.
  14216. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14217. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14218. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14219. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14220. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14221. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14222. Failed writing message. Aborting connection.
  14223. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14224. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14225. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14226. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14227. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14228. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14229. Failed writing message. Aborting connection.
  14230. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14231. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14232. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14233. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14234. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14235. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14236. Failed writing message. Aborting connection.
  14237. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14238. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14239. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14240. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14241. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14242. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14243. Failed writing message. Aborting connection.
  14244. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14245. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14246. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14247. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14248. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14249. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14250. Failed writing message. Aborting connection.
  14251. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14252. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14253. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14254. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14255. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14256. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14257. Failed writing message. Aborting connection.
  14258. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14259. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14260. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14261. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14262. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14263. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14264. Failed writing message. Aborting connection.
  14265. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14266. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14267. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14268. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14269. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14270. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14271. Failed writing message. Aborting connection.
  14272. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14273. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14274. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14275. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14276. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14277. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14278. Failed writing message. Aborting connection.
  14279. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14280. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14281. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14282. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14283. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14284. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14285. Failed writing message. Aborting connection.
  14286. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14287. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14288. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14289. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14290. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14291. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14292. Failed writing message. Aborting connection.
  14293. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14294. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14295. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14296. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14297. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14298. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14299. Failed writing message. Aborting connection.
  14300. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14301. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14302. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14303. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14304. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14305. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14306. Failed writing message. Aborting connection.
  14307. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14308. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14309. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14310. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14311. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14312. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14313. Failed writing message. Aborting connection.
  14314. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14315. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14316. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14317. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14318. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14319. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14320. Failed writing message. Aborting connection.
  14321. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14322. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14323. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14324. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14325. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14326. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14327. Failed writing message. Aborting connection.
  14328. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14329. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14330. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14331. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14332. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14333. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14334. Failed writing message. Aborting connection.
  14335. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14336. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14337. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14338. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14339. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14340. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14341. Failed writing message. Aborting connection.
  14342. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14343. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14344. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14345. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14346. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14347. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14348. Failed writing message. Aborting connection.
  14349. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14350. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14351. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14352. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14353. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14354. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14355. Failed writing message. Aborting connection.
  14356. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14357. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14358. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14359. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14360. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14361. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14362. Failed writing message. Aborting connection.
  14363. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14364. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14365. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14366. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14367. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14368. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14369. Failed writing message. Aborting connection.
  14370. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14371. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14372. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14373. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14374. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14375. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14376. Failed writing message. Aborting connection.
  14377. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14378. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14379. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14380. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14381. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14382. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14383. Failed writing message. Aborting connection.
  14384. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14385. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14386. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14387. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14388. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14389. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14390. Failed writing message. Aborting connection.
  14391. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14392. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14393. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14394. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14395. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14396. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14397. Failed writing message. Aborting connection.
  14398. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14399. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14400. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14401. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14402. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14403. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14404. Failed writing message. Aborting connection.
  14405. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14406. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14407. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14408. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14409. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14410. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14411. Failed writing message. Aborting connection.
  14412. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14413. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14414. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14415. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14416. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14417. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14418. Failed writing message. Aborting connection.
  14419. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14420. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14421. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14422. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14423. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14424. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14425. Failed writing message. Aborting connection.
  14426. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14427. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14428. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14429. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14430. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14431. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14432. Failed writing message. Aborting connection.
  14433. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14434. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14435. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14436. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14437. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14438. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14439. Failed writing message. Aborting connection.
  14440. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14441. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14442. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14443. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14444. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14445. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14446. Failed writing message. Aborting connection.
  14447. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14448. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14449. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14450. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14451. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14452. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14453. Failed writing message. Aborting connection.
  14454. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14455. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14456. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14457. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14458. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14459. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14460. Failed writing message. Aborting connection.
  14461. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14462. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14463. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14464. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14465. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14466. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14467. Failed writing message. Aborting connection.
  14468. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14469. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14470. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14471. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14472. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14473. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14474. Failed writing message. Aborting connection.
  14475. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14476. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14477. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14478. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14479. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14480. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14481. Failed writing message. Aborting connection.
  14482. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14483. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14484. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14485. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14486. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14487. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14488. Failed writing message. Aborting connection.
  14489. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14490. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14491. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14492. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14493. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14494. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14495. Failed writing message. Aborting connection.
  14496. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14497. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14498. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14499. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14500. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14501. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14502. Failed writing message. Aborting connection.
  14503. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14504. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14505. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14506. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14507. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14508. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14509. Failed writing message. Aborting connection.
  14510. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14511. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14512. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14513. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14514. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14515. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14516. Failed writing message. Aborting connection.
  14517. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14518. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14519. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14520. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14521. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14522. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14523. Failed writing message. Aborting connection.
  14524. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14525. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14526. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14527. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14528. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14529. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14530. Failed writing message. Aborting connection.
  14531. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14532. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14533. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14534. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14535. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14536. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14537. Failed writing message. Aborting connection.
  14538. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14539. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14540. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14541. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14542. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14543. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14544. Failed writing message. Aborting connection.
  14545. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14546. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14547. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14548. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14549. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14550. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14551. Failed writing message. Aborting connection.
  14552. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14553. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14554. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14555. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14556. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14557. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14558. Failed writing message. Aborting connection.
  14559. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14560. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14561. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14562. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14563. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14564. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14565. Failed writing message. Aborting connection.
  14566. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14567. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14568. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14569. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14570. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14571. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14572. Failed writing message. Aborting connection.
  14573. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14574. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14575. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14576. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14577. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14578. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14579. Failed writing message. Aborting connection.
  14580. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14581. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14582. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14583. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14584. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14585. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14586. Failed writing message. Aborting connection.
  14587. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14588. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14589. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14590. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14591. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14592. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14593. Failed writing message. Aborting connection.
  14594. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14595. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14596. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14597. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14598. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14599. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14600. Failed writing message. Aborting connection.
  14601. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14602. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14603. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14604. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14605. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14606. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14607. Failed writing message. Aborting connection.
  14608. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14609. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14610. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14611. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14612. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14613. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14614. Failed writing message. Aborting connection.
  14615. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14616. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14617. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14618. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14619. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14620. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14621. Failed writing message. Aborting connection.
  14622. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14623. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14624. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14625. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14626. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14627. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14628. Failed writing message. Aborting connection.
  14629. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14630. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14631. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14632. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14633. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14634. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14635. Failed writing message. Aborting connection.
  14636. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14637. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14638. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14639. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14640. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14641. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14642. Failed writing message. Aborting connection.
  14643. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14644. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14645. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14646. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14647. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14648. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14649. Failed writing message. Aborting connection.
  14650. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14651. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14652. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14653. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14654. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14655. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14656. Failed writing message. Aborting connection.
  14657. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14658. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14659. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14660. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14661. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14662. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14663. Failed writing message. Aborting connection.
  14664. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14665. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14666. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14667. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14668. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14669. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14670. Failed writing message. Aborting connection.
  14671. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14672. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14673. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14674. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14675. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14676. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14677. Failed writing message. Aborting connection.
  14678. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14679. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14680. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14681. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14682. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14683. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14684. Failed writing message. Aborting connection.
  14685. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14686. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14687. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14688. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14689. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14690. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14691. Failed writing message. Aborting connection.
  14692. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14693. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14694. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14695. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14696. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14697. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14698. Failed writing message. Aborting connection.
  14699. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14700. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14701. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14702. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14703. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14704. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14705. Failed writing message. Aborting connection.
  14706. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14707. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14708. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14709. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14710. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14711. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14712. Failed writing message. Aborting connection.
  14713. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14714. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14715. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14716. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14717. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14718. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14719. Failed writing message. Aborting connection.
  14720. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14721. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14722. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14723. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14724. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14725. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14726. Failed writing message. Aborting connection.
  14727. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14728. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14729. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14730. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14731. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14732. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14733. Failed writing message. Aborting connection.
  14734. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14735. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14736. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14737. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14738. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14739. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14740. Failed writing message. Aborting connection.
  14741. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14742. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14743. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14744. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14745. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14746. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14747. Failed writing message. Aborting connection.
  14748. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14749. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14750. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14751. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14752. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14753. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14754. Failed writing message. Aborting connection.
  14755. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14756. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14757. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14758. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14759. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14760. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14761. Failed writing message. Aborting connection.
  14762. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14763. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14764. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14765. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14766. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14767. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14768. Failed writing message. Aborting connection.
  14769. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14770. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14771. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14772. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14773. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14774. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14775. Failed writing message. Aborting connection.
  14776. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14777. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14778. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14779. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14780. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14781. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14782. Failed writing message. Aborting connection.
  14783. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14784. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14785. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14786. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14787. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14788. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14789. Failed writing message. Aborting connection.
  14790. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14791. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14792. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14793. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14794. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14795. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14796. Failed writing message. Aborting connection.
  14797. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14798. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14799. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14800. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14801. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14802. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14803. Failed writing message. Aborting connection.
  14804. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14805. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14806. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14807. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14808. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14809. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14810. Failed writing message. Aborting connection.
  14811. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14812. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14813. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14814. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14815. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14816. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14817. Failed writing message. Aborting connection.
  14818. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14819. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14820. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14821. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14822. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14823. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14824. Failed writing message. Aborting connection.
  14825. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14826. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14827. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14828. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14829. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14830. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14831. Failed writing message. Aborting connection.
  14832. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14833. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14834. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14835. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14836. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14837. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14838. Failed writing message. Aborting connection.
  14839. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14840. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14841. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14842. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14843. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14844. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14845. Failed writing message. Aborting connection.
  14846. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14847. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14848. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14849. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14850. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14851. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14852. Failed writing message. Aborting connection.
  14853. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14854. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14855. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14856. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14857. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14858. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14859. Failed writing message. Aborting connection.
  14860. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14861. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14862. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14863. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14864. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14865. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14866. Failed writing message. Aborting connection.
  14867. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14868. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14869. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14870. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14871. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14872. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14873. Failed writing message. Aborting connection.
  14874. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14875. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14876. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14877. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14878. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14879. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14880. Failed writing message. Aborting connection.
  14881. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14882. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14883. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14884. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14885. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14886. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14887. Failed writing message. Aborting connection.
  14888. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14889. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14890. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14891. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14892. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14893. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14894. Failed writing message. Aborting connection.
  14895. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14896. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14897. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14898. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14899. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14900. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14901. Failed writing message. Aborting connection.
  14902. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14903. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14904. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14905. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14906. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14907. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14908. Failed writing message. Aborting connection.
  14909. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14910. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14911. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14912. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14913. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14914. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14915. Failed writing message. Aborting connection.
  14916. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14917. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14918. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14919. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14920. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14921. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14922. Failed writing message. Aborting connection.
  14923. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14924. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14925. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14926. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14927. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14928. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14929. Failed writing message. Aborting connection.
  14930. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14931. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14932. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14933. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14934. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14935. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14936. Failed writing message. Aborting connection.
  14937. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14938. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14939. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14940. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14941. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14942. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14943. Failed writing message. Aborting connection.
  14944. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14945. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14946. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14947. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14948. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14949. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14950. Failed writing message. Aborting connection.
  14951. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14952. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14953. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14954. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14955. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14956. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14957. Failed writing message. Aborting connection.
  14958. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14959. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14960. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14961. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14962. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14963. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14964. Failed writing message. Aborting connection.
  14965. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14966. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14967. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14968. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14969. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14970. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14971. Failed writing message. Aborting connection.
  14972. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14973. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14974. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14975. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14976. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14977. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14978. Failed writing message. Aborting connection.
  14979. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14980. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14981. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14982. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14983. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14984. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14985. Failed writing message. Aborting connection.
  14986. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14987. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14988. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14989. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14990. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14991. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14992. Failed writing message. Aborting connection.
  14993. System.InvalidOperationException: Writing is not allowed after writer was completed.
  14994. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  14995. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14996. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  14997. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  14998. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  14999. Failed writing message. Aborting connection.
  15000. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15001. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15002. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15003. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15004. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15005. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15006. Failed writing message. Aborting connection.
  15007. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15008. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15009. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15010. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15011. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15012. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15013. Failed writing message. Aborting connection.
  15014. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15015. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15016. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15017. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15018. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15019. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15020. Failed writing message. Aborting connection.
  15021. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15022. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15023. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15024. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15025. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15026. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15027. Failed writing message. Aborting connection.
  15028. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15029. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15030. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15031. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15032. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15033. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15034. Failed writing message. Aborting connection.
  15035. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15036. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15037. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15038. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15039. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15040. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15041. Failed writing message. Aborting connection.
  15042. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15043. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15044. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15045. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15046. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15047. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15048. Failed writing message. Aborting connection.
  15049. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15050. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15051. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15052. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15053. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15054. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15055. Failed writing message. Aborting connection.
  15056. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15057. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15058. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15059. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15060. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15061. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15062. Failed writing message. Aborting connection.
  15063. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15064. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15065. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15066. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15067. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15068. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15069. Failed writing message. Aborting connection.
  15070. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15071. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15072. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15073. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15074. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15075. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15076. Failed writing message. Aborting connection.
  15077. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15078. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15079. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15080. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15081. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15082. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15083. Failed writing message. Aborting connection.
  15084. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15085. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15086. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15087. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15088. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15089. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15090. Failed writing message. Aborting connection.
  15091. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15092. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15093. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15094. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15095. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15096. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15097. Failed writing message. Aborting connection.
  15098. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15099. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15100. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15101. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15102. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15103. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15104. Failed writing message. Aborting connection.
  15105. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15106. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15107. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15108. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15109. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15110. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15111. Failed writing message. Aborting connection.
  15112. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15113. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15114. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15115. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15116. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15117. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15118. Failed writing message. Aborting connection.
  15119. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15120. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15121. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15122. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15123. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15124. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15125. Failed writing message. Aborting connection.
  15126. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15127. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15128. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15129. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15130. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15131. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15132. Failed writing message. Aborting connection.
  15133. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15134. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15135. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15136. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15137. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15138. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15139. Failed writing message. Aborting connection.
  15140. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15141. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15142. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15143. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15144. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15145. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15146. Failed writing message. Aborting connection.
  15147. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15148. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15149. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15150. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15151. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15152. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15153. Failed writing message. Aborting connection.
  15154. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15155. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15156. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15157. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15158. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15159. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15160. Failed writing message. Aborting connection.
  15161. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15162. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15163. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15164. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15165. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15166. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15167. Failed writing message. Aborting connection.
  15168. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15169. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15170. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15171. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15172. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15173. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15174. Failed writing message. Aborting connection.
  15175. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15176. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15177. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15178. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15179. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15180. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15181. Failed writing message. Aborting connection.
  15182. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15183. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15184. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15185. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15186. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15187. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15188. Failed writing message. Aborting connection.
  15189. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15190. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15191. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15192. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15193. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15194. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15195. Failed writing message. Aborting connection.
  15196. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15197. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15198. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15199. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15200. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15201. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15202. Failed writing message. Aborting connection.
  15203. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15204. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15205. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15206. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15207. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15208. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15209. Failed writing message. Aborting connection.
  15210. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15211. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15212. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15213. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15214. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15215. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15216. Failed writing message. Aborting connection.
  15217. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15218. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15219. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15220. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15221. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15222. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15223. Failed writing message. Aborting connection.
  15224. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15225. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15226. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15227. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15228. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15229. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15230. Failed writing message. Aborting connection.
  15231. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15232. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15233. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15234. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15235. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15236. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15237. Failed writing message. Aborting connection.
  15238. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15239. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15240. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15241. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15242. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15243. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15244. Failed writing message. Aborting connection.
  15245. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15246. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15247. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15248. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15249. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15250. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15251. Failed writing message. Aborting connection.
  15252. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15253. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15254. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15255. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15256. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15257. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15258. Failed writing message. Aborting connection.
  15259. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15260. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15261. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15262. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15263. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15264. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15265. Failed writing message. Aborting connection.
  15266. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15267. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15268. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15269. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15270. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15271. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15272. Failed writing message. Aborting connection.
  15273. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15274. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15275. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15276. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15277. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15278. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15279. Failed writing message. Aborting connection.
  15280. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15281. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15282. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15283. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15284. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15285. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15286. Failed writing message. Aborting connection.
  15287. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15288. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15289. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15290. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15291. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15292. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15293. Failed writing message. Aborting connection.
  15294. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15295. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15296. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15297. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15298. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15299. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15300. Failed writing message. Aborting connection.
  15301. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15302. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15303. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15304. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15305. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15306. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15307. Failed writing message. Aborting connection.
  15308. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15309. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15310. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15311. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15312. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15313. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15314. Failed writing message. Aborting connection.
  15315. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15316. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15317. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15318. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15319. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15320. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15321. Failed writing message. Aborting connection.
  15322. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15323. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15324. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15325. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15326. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15327. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15328. Failed writing message. Aborting connection.
  15329. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15330. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15331. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15332. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15333. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15334. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15335. Failed writing message. Aborting connection.
  15336. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15337. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15338. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15339. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15340. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15341. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15342. Failed writing message. Aborting connection.
  15343. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15344. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15345. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15346. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15347. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15348. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15349. Failed writing message. Aborting connection.
  15350. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15351. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15352. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15353. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15354. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15355. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15356. Failed writing message. Aborting connection.
  15357. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15358. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15359. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15360. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15361. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15362. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15363. Failed writing message. Aborting connection.
  15364. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15365. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15366. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15367. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15368. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15369. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15370. Failed writing message. Aborting connection.
  15371. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15372. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15373. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15374. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15375. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15376. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15377. Failed writing message. Aborting connection.
  15378. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15379. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15380. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15381. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15382. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15383. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15384. Failed writing message. Aborting connection.
  15385. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15386. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15387. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15388. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15389. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15390. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15391. Failed writing message. Aborting connection.
  15392. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15393. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15394. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15395. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15396. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15397. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15398. Failed writing message. Aborting connection.
  15399. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15400. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15401. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15402. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15403. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15404. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15405. Failed writing message. Aborting connection.
  15406. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15407. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15408. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15409. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15410. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15411. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15412. Failed writing message. Aborting connection.
  15413. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15414. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15415. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15416. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15417. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15418. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15419. Failed writing message. Aborting connection.
  15420. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15421. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15422. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15423. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15424. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15425. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15426. Failed writing message. Aborting connection.
  15427. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15428. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15429. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15430. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15431. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15432. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15433. Failed writing message. Aborting connection.
  15434. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15435. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15436. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15437. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15438. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15439. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15440. Failed writing message. Aborting connection.
  15441. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15442. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15443. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15444. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15445. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15446. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15447. Failed writing message. Aborting connection.
  15448. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15449. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15450. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15451. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15452. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15453. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15454. Failed writing message. Aborting connection.
  15455. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15456. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15457. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15458. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15459. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15460. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15461. Failed writing message. Aborting connection.
  15462. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15463. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15464. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15465. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15466. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15467. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15468. Failed writing message. Aborting connection.
  15469. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15470. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15471. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15472. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15473. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15474. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15475. Failed writing message. Aborting connection.
  15476. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15477. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15478. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15479. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15480. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15481. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15482. Failed writing message. Aborting connection.
  15483. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15484. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15485. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15486. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15487. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15488. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15489. Failed writing message. Aborting connection.
  15490. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15491. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15492. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15493. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15494. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15495. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15496. Failed writing message. Aborting connection.
  15497. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15498. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15499. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15500. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15501. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15502. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15503. Failed writing message. Aborting connection.
  15504. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15505. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15506. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15507. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15508. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15509. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15510. Failed writing message. Aborting connection.
  15511. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15512. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15513. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15514. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15515. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15516. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15517. Failed writing message. Aborting connection.
  15518. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15519. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15520. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15521. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15522. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15523. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15524. Failed writing message. Aborting connection.
  15525. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15526. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15527. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15528. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15529. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15530. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15531. Failed writing message. Aborting connection.
  15532. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15533. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15534. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15535. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15536. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15537. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15538. Failed writing message. Aborting connection.
  15539. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15540. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15541. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15542. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15543. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15544. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15545. Failed writing message. Aborting connection.
  15546. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15547. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15548. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15549. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15550. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15551. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15552. Failed writing message. Aborting connection.
  15553. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15554. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15555. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15556. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15557. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15558. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15559. Failed writing message. Aborting connection.
  15560. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15561. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15562. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15563. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15564. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15565. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15566. Failed writing message. Aborting connection.
  15567. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15568. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15569. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15570. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15571. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15572. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15573. Failed writing message. Aborting connection.
  15574. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15575. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15576. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15577. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15578. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15579. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15580. Failed writing message. Aborting connection.
  15581. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15582. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15583. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15584. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15585. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15586. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15587. Failed writing message. Aborting connection.
  15588. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15589. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15590. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15591. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15592. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15593. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15594. Failed writing message. Aborting connection.
  15595. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15596. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15597. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15598. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15599. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15600. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15601. Failed writing message. Aborting connection.
  15602. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15603. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15604. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15605. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15606. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15607. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15608. Failed writing message. Aborting connection.
  15609. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15610. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15611. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15612. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15613. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15614. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15615. Failed writing message. Aborting connection.
  15616. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15617. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15618. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15619. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15620. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15621. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15622. Failed writing message. Aborting connection.
  15623. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15624. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15625. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15626. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15627. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15628. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15629. Failed writing message. Aborting connection.
  15630. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15631. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15632. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15633. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15634. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15635. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15636. Failed writing message. Aborting connection.
  15637. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15638. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15639. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15640. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15641. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15642. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15643. Failed writing message. Aborting connection.
  15644. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15645. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15646. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15647. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15648. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15649. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15650. Failed writing message. Aborting connection.
  15651. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15652. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15653. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15654. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15655. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15656. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15657. Failed writing message. Aborting connection.
  15658. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15659. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15660. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15661. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15662. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15663. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15664. Failed writing message. Aborting connection.
  15665. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15666. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15667. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15668. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15669. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15670. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15671. Failed writing message. Aborting connection.
  15672. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15673. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15674. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15675. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15676. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15677. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15678. Failed writing message. Aborting connection.
  15679. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15680. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15681. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15682. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15683. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15684. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15685. Failed writing message. Aborting connection.
  15686. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15687. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15688. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15689. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15690. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15691. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15692. Failed writing message. Aborting connection.
  15693. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15694. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15695. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15696. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15697. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15698. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15699. Failed writing message. Aborting connection.
  15700. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15701. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15702. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15703. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15704. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15705. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15706. Failed writing message. Aborting connection.
  15707. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15708. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15709. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15710. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15711. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15712. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15713. Failed writing message. Aborting connection.
  15714. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15715. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15716. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15717. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15718. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15719. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15720. Failed writing message. Aborting connection.
  15721. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15722. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15723. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15724. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15725. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15726. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15727. Failed writing message. Aborting connection.
  15728. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15729. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15730. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15731. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15732. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15733. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15734. Failed writing message. Aborting connection.
  15735. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15736. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15737. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15738. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15739. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15740. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15741. Failed writing message. Aborting connection.
  15742. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15743. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15744. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15745. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15746. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15747. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15748. Failed writing message. Aborting connection.
  15749. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15750. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15751. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15752. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15753. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15754. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15755. Failed writing message. Aborting connection.
  15756. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15757. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15758. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15759. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15760. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15761. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15762. Failed writing message. Aborting connection.
  15763. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15764. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15765. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15766. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15767. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15768. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15769. Failed writing message. Aborting connection.
  15770. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15771. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15772. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15773. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15774. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15775. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15776. Failed writing message. Aborting connection.
  15777. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15778. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15779. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15780. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15781. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15782. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15783. Failed writing message. Aborting connection.
  15784. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15785. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15786. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15787. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15788. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15789. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15790. Failed writing message. Aborting connection.
  15791. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15792. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15793. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15794. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15795. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15796. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15797. Failed writing message. Aborting connection.
  15798. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15799. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15800. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15801. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15802. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15803. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15804. Failed writing message. Aborting connection.
  15805. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15806. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15807. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15808. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15809. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15810. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15811. Failed writing message. Aborting connection.
  15812. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15813. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15814. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15815. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15816. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15817. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15818. Failed writing message. Aborting connection.
  15819. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15820. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15821. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15822. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15823. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15824. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15825. Failed writing message. Aborting connection.
  15826. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15827. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15828. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15829. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15830. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15831. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15832. Failed writing message. Aborting connection.
  15833. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15834. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15835. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15836. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15837. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15838. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15839. Failed writing message. Aborting connection.
  15840. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15841. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15842. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15843. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15844. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15845. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15846. Failed writing message. Aborting connection.
  15847. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15848. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15849. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15850. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15851. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15852. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15853. Failed writing message. Aborting connection.
  15854. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15855. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15856. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15857. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15858. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15859. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15860. Failed writing message. Aborting connection.
  15861. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15862. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15863. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15864. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15865. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15866. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15867. Failed writing message. Aborting connection.
  15868. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15869. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15870. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15871. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15872. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15873. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15874. Failed writing message. Aborting connection.
  15875. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15876. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15877. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15878. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15879. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15880. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15881. Failed writing message. Aborting connection.
  15882. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15883. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15884. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15885. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15886. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15887. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15888. Failed writing message. Aborting connection.
  15889. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15890. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15891. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15892. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15893. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15894. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15895. Failed writing message. Aborting connection.
  15896. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15897. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15898. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15899. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15900. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15901. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15902. Failed writing message. Aborting connection.
  15903. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15904. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15905. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15906. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15907. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15908. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15909. Failed writing message. Aborting connection.
  15910. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15911. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15912. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15913. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15914. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15915. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15916. Failed writing message. Aborting connection.
  15917. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15918. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15919. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15920. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15921. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15922. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15923. Failed writing message. Aborting connection.
  15924. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15925. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15926. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15927. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15928. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15929. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15930. Failed writing message. Aborting connection.
  15931. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15932. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15933. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15934. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15935. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15936. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15937. Failed writing message. Aborting connection.
  15938. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15939. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15940. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15941. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15942. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15943. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15944. Failed writing message. Aborting connection.
  15945. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15946. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15947. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15948. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15949. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15950. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15951. Failed writing message. Aborting connection.
  15952. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15953. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15954. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15955. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15956. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15957. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15958. Failed writing message. Aborting connection.
  15959. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15960. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15961. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15962. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15963. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15964. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15965. Failed writing message. Aborting connection.
  15966. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15967. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15968. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15969. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15970. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15971. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15972. Failed writing message. Aborting connection.
  15973. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15974. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15975. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15976. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15977. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15978. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15979. Failed writing message. Aborting connection.
  15980. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15981. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15982. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15983. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15984. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15985. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15986. Failed writing message. Aborting connection.
  15987. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15988. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15989. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15990. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15991. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15992. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  15993. Failed writing message. Aborting connection.
  15994. System.InvalidOperationException: Writing is not allowed after writer was completed.
  15995. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  15996. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15997. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  15998. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  15999. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16000. Failed writing message. Aborting connection.
  16001. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16002. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16003. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16004. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16005. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16006. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16007. Failed writing message. Aborting connection.
  16008. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16009. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16010. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16011. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16012. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16013. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16014. Failed writing message. Aborting connection.
  16015. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16016. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16017. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16018. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16019. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16020. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16021. Failed writing message. Aborting connection.
  16022. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16023. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16024. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16025. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16026. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16027. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16028. Failed writing message. Aborting connection.
  16029. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16030. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16031. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16032. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16033. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16034. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16035. Failed writing message. Aborting connection.
  16036. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16037. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16038. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16039. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16040. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16041. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16042. Failed writing message. Aborting connection.
  16043. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16044. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16045. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16046. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16047. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16048. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16049. Failed writing message. Aborting connection.
  16050. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16051. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16052. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16053. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16054. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16055. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16056. Failed writing message. Aborting connection.
  16057. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16058. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16059. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16060. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16061. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16062. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16063. Failed writing message. Aborting connection.
  16064. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16065. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16066. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16067. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16068. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16069. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16070. Failed writing message. Aborting connection.
  16071. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16072. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16073. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16074. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16075. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16076. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16077. Failed writing message. Aborting connection.
  16078. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16079. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16080. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16081. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16082. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16083. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16084. Failed writing message. Aborting connection.
  16085. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16086. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16087. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16088. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16089. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16090. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16091. Failed writing message. Aborting connection.
  16092. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16093. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16094. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16095. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16096. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16097. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16098. Failed writing message. Aborting connection.
  16099. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16100. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16101. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16102. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16103. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16104. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16105. Failed writing message. Aborting connection.
  16106. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16107. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16108. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16109. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16110. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16111. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16112. Failed writing message. Aborting connection.
  16113. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16114. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16115. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16116. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16117. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16118. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16119. Failed writing message. Aborting connection.
  16120. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16121. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16122. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16123. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16124. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16125. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16126. Failed writing message. Aborting connection.
  16127. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16128. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16129. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16130. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16131. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16132. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16133. Failed writing message. Aborting connection.
  16134. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16135. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16136. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16137. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16138. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16139. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16140. Failed writing message. Aborting connection.
  16141. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16142. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16143. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16144. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16145. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16146. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16147. Failed writing message. Aborting connection.
  16148. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16149. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16150. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16151. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16152. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16153. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16154. Failed writing message. Aborting connection.
  16155. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16156. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16157. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16158. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16159. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16160. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16161. Failed writing message. Aborting connection.
  16162. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16163. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16164. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16165. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16166. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16167. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16168. Failed writing message. Aborting connection.
  16169. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16170. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16171. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16172. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16173. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16174. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16175. Failed writing message. Aborting connection.
  16176. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16177. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16178. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16179. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16180. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16181. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16182. Failed writing message. Aborting connection.
  16183. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16184. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16185. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16186. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16187. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16188. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16189. Failed writing message. Aborting connection.
  16190. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16191. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16192. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16193. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16194. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16195. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16196. Failed writing message. Aborting connection.
  16197. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16198. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16199. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16200. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16201. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16202. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16203. Failed writing message. Aborting connection.
  16204. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16205. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16206. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16207. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16208. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16209. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16210. Failed writing message. Aborting connection.
  16211. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16212. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16213. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16214. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16215. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16216. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16217. Failed writing message. Aborting connection.
  16218. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16219. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16220. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16221. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16222. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16223. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16224. Failed writing message. Aborting connection.
  16225. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16226. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16227. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16228. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16229. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16230. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16231. Failed writing message. Aborting connection.
  16232. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16233. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16234. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16235. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16236. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16237. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16238. Failed writing message. Aborting connection.
  16239. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16240. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16241. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16242. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16243. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16244. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16245. Failed writing message. Aborting connection.
  16246. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16247. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16248. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16249. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16250. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16251. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16252. Failed writing message. Aborting connection.
  16253. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16254. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16255. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16256. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16257. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16258. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16259. Failed writing message. Aborting connection.
  16260. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16261. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16262. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16263. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16264. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16265. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16266. Failed writing message. Aborting connection.
  16267. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16268. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16269. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16270. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16271. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16272. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16273. Failed writing message. Aborting connection.
  16274. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16275. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16276. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16277. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16278. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16279. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16280. Failed writing message. Aborting connection.
  16281. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16282. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16283. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16284. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16285. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16286. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16287. Failed writing message. Aborting connection.
  16288. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16289. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16290. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16291. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16292. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16293. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16294. Failed writing message. Aborting connection.
  16295. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16296. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16297. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16298. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16299. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16300. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16301. Failed writing message. Aborting connection.
  16302. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16303. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16304. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16305. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16306. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16307. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  16308. Heartbeat took longer than "00:00:01" at "06/01/2019 00:41:17 +00:00".
  16309. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16310. Failed writing message. Aborting connection.
  16311. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16312. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16313. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16314. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16315. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16316. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16317. Failed writing message. Aborting connection.
  16318. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16319. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16320. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16321. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16322. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16323. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16324. Failed writing message. Aborting connection.
  16325. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16326. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16327. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16328. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16329. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16330. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16331. Failed writing message. Aborting connection.
  16332. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16333. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16334. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16335. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16336. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16337. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16338. Failed writing message. Aborting connection.
  16339. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16340. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16341. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16342. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16343. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16344. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16345. Failed writing message. Aborting connection.
  16346. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16347. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16348. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16349. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16350. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16351. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16352. Failed writing message. Aborting connection.
  16353. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16354. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16355. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16356. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16357. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16358. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16359. Failed writing message. Aborting connection.
  16360. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16361. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16362. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16363. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16364. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16365. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16366. Failed writing message. Aborting connection.
  16367. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16368. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16369. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16370. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16371. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16372. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16373. Failed writing message. Aborting connection.
  16374. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16375. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16376. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16377. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16378. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16379. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16380. Failed writing message. Aborting connection.
  16381. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16382. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16383. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16384. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16385. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16386. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16387. Failed writing message. Aborting connection.
  16388. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16389. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16390. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16391. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16392. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16393. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16394. Failed writing message. Aborting connection.
  16395. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16396. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16397. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16398. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16399. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16400. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16401. Failed writing message. Aborting connection.
  16402. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16403. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16404. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16405. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16406. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16407. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16408. Failed writing message. Aborting connection.
  16409. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16410. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16411. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16412. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16413. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16414. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16415. Failed writing message. Aborting connection.
  16416. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16417. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16418. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16419. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16420. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16421. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16422. Failed writing message. Aborting connection.
  16423. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16424. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16425. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16426. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16427. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16428. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16429. Failed writing message. Aborting connection.
  16430. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16431. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16432. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16433. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16434. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16435. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16436. Failed writing message. Aborting connection.
  16437. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16438. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16439. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16440. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16441. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16442. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16443. Failed writing message. Aborting connection.
  16444. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16445. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16446. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16447. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16448. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16449. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16450. Failed writing message. Aborting connection.
  16451. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16452. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16453. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16454. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16455. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16456. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16457. Failed writing message. Aborting connection.
  16458. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16459. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16460. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16461. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16462. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16463. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16464. Failed writing message. Aborting connection.
  16465. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16466. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16467. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16468. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16469. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16470. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16471. Failed writing message. Aborting connection.
  16472. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16473. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16474. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16475. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16476. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16477. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16478. Failed writing message. Aborting connection.
  16479. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16480. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16481. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16482. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16483. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16484. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16485. Failed writing message. Aborting connection.
  16486. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16487. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16488. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16489. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16490. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16491. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16492. Failed writing message. Aborting connection.
  16493. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16494. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16495. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16496. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16497. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16498. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16499. Failed writing message. Aborting connection.
  16500. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16501. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16502. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16503. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16504. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16505. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16506. Failed writing message. Aborting connection.
  16507. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16508. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16509. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16510. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16511. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16512. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16513. Failed writing message. Aborting connection.
  16514. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16515. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16516. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16517. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16518. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16519. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16520. Failed writing message. Aborting connection.
  16521. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16522. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16523. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16524. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16525. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16526. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16527. Failed writing message. Aborting connection.
  16528. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16529. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16530. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16531. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16532. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16533. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16534. Failed writing message. Aborting connection.
  16535. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16536. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16537. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16538. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16539. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16540. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16541. Failed writing message. Aborting connection.
  16542. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16543. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16544. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16545. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16546. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16547. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16548. Failed writing message. Aborting connection.
  16549. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16550. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16551. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16552. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16553. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16554. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16555. Failed writing message. Aborting connection.
  16556. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16557. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16558. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16559. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16560. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16561. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16562. Failed writing message. Aborting connection.
  16563. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16564. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16565. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16566. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16567. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16568. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16569. Failed writing message. Aborting connection.
  16570. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16571. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16572. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16573. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16574. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16575. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16576. Failed writing message. Aborting connection.
  16577. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16578. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16579. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16580. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16581. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16582. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16583. Failed writing message. Aborting connection.
  16584. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16585. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16586. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16587. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16588. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16589. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16590. Failed writing message. Aborting connection.
  16591. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16592. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16593. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16594. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16595. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16596. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16597. Failed writing message. Aborting connection.
  16598. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16599. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16600. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16601. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16602. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16603. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16604. Failed writing message. Aborting connection.
  16605. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16606. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16607. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16608. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16609. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16610. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16611. Failed writing message. Aborting connection.
  16612. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16613. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16614. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16615. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16616. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16617. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16618. Failed writing message. Aborting connection.
  16619. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16620. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16621. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16622. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16623. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16624. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16625. Failed writing message. Aborting connection.
  16626. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16627. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16628. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16629. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16630. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16631. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16632. Failed writing message. Aborting connection.
  16633. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16634. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16635. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16636. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16637. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16638. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16639. Failed writing message. Aborting connection.
  16640. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16641. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16642. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16643. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16644. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16645. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16646. Failed writing message. Aborting connection.
  16647. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16648. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16649. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16650. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16651. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16652. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16653. Failed writing message. Aborting connection.
  16654. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16655. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16656. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16657. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16658. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16659. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16660. Failed writing message. Aborting connection.
  16661. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16662. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16663. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16664. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16665. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16666. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16667. Failed writing message. Aborting connection.
  16668. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16669. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16670. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16671. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16672. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16673. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16674. Failed writing message. Aborting connection.
  16675. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16676. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16677. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16678. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16679. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16680. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16681. Failed writing message. Aborting connection.
  16682. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16683. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16684. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16685. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16686. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16687. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16688. Failed writing message. Aborting connection.
  16689. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16690. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16691. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16692. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16693. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16694. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16695. Failed writing message. Aborting connection.
  16696. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16697. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16698. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16699. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16700. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16701. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16702. Failed writing message. Aborting connection.
  16703. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16704. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16705. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16706. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16707. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16708. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16709. Failed writing message. Aborting connection.
  16710. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16711. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16712. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16713. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16714. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16715. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16716. Failed writing message. Aborting connection.
  16717. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16718. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16719. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16720. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16721. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16722. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16723. Failed writing message. Aborting connection.
  16724. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16725. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16726. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16727. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16728. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16729. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16730. Failed writing message. Aborting connection.
  16731. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16732. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16733. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16734. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16735. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16736. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16737. Failed writing message. Aborting connection.
  16738. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16739. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16740. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16741. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16742. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16743. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16744. Failed writing message. Aborting connection.
  16745. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16746. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16747. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16748. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16749. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16750. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16751. Failed writing message. Aborting connection.
  16752. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16753. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16754. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16755. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16756. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16757. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16758. Failed writing message. Aborting connection.
  16759. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16760. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16761. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16762. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16763. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16764. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16765. Failed writing message. Aborting connection.
  16766. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16767. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16768. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16769. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16770. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16771. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16772. Failed writing message. Aborting connection.
  16773. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16774. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16775. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16776. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16777. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16778. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16779. Failed writing message. Aborting connection.
  16780. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16781. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16782. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16783. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16784. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16785. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16786. Failed writing message. Aborting connection.
  16787. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16788. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16789. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16790. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16791. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16792. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16793. Failed writing message. Aborting connection.
  16794. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16795. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16796. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16797. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16798. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16799. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16800. Failed writing message. Aborting connection.
  16801. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16802. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16803. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16804. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16805. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16806. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16807. Failed writing message. Aborting connection.
  16808. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16809. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16810. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16811. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16812. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16813. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16814. Failed writing message. Aborting connection.
  16815. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16816. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16817. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16818. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16819. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16820. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16821. Failed writing message. Aborting connection.
  16822. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16823. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16824. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16825. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16826. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16827. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16828. Failed writing message. Aborting connection.
  16829. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16830. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16831. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16832. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16833. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16834. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16835. Failed writing message. Aborting connection.
  16836. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16837. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16838. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16839. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16840. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16841. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16842. Failed writing message. Aborting connection.
  16843. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16844. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16845. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16846. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16847. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16848. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16849. Failed writing message. Aborting connection.
  16850. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16851. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16852. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16853. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16854. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16855. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16856. Failed writing message. Aborting connection.
  16857. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16858. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16859. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16860. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16861. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16862. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16863. Failed writing message. Aborting connection.
  16864. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16865. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16866. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16867. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16868. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16869. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16870. Failed writing message. Aborting connection.
  16871. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16872. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16873. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16874. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16875. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16876. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16877. Failed writing message. Aborting connection.
  16878. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16879. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16880. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16881. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16882. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16883. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16884. Failed writing message. Aborting connection.
  16885. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16886. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16887. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16888. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16889. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16890. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16891. Failed writing message. Aborting connection.
  16892. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16893. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16894. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16895. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16896. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16897. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16898. Failed writing message. Aborting connection.
  16899. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16900. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16901. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16902. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16903. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16904. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16905. Failed writing message. Aborting connection.
  16906. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16907. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16908. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16909. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16910. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16911. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16912. Failed writing message. Aborting connection.
  16913. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16914. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16915. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16916. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16917. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16918. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16919. Failed writing message. Aborting connection.
  16920. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16921. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16922. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16923. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16924. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16925. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16926. Failed writing message. Aborting connection.
  16927. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16928. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16929. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16930. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16931. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16932. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16933. Failed writing message. Aborting connection.
  16934. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16935. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16936. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16937. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16938. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16939. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16940. Failed writing message. Aborting connection.
  16941. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16942. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16943. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16944. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16945. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16946. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16947. Failed writing message. Aborting connection.
  16948. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16949. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16950. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16951. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16952. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16953. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16954. Failed writing message. Aborting connection.
  16955. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16956. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16957. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16958. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16959. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16960. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16961. Failed writing message. Aborting connection.
  16962. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16963. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16964. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16965. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16966. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16967. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16968. Failed writing message. Aborting connection.
  16969. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16970. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16971. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16972. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16973. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16974. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16975. Failed writing message. Aborting connection.
  16976. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16977. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16978. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16979. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16980. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16981. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16982. Failed writing message. Aborting connection.
  16983. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16984. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16985. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16986. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16987. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16988. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16989. Failed writing message. Aborting connection.
  16990. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16991. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16992. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16993. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  16994. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  16995. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  16996. Failed writing message. Aborting connection.
  16997. System.InvalidOperationException: Writing is not allowed after writer was completed.
  16998. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  16999. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17000. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17001. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17002. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17003. Failed writing message. Aborting connection.
  17004. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17005. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17006. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17007. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17008. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17009. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17010. Failed writing message. Aborting connection.
  17011. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17012. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17013. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17014. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17015. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17016. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17017. Failed writing message. Aborting connection.
  17018. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17019. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17020. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17021. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17022. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17023. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17024. Failed writing message. Aborting connection.
  17025. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17026. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17027. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17028. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17029. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17030. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17031. Failed writing message. Aborting connection.
  17032. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17033. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17034. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17035. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17036. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17037. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17038. Failed writing message. Aborting connection.
  17039. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17040. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17041. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17042. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17043. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17044. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17045. Failed writing message. Aborting connection.
  17046. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17047. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17048. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17049. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17050. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17051. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17052. Failed writing message. Aborting connection.
  17053. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17054. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17055. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17056. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17057. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17058. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17059. Failed writing message. Aborting connection.
  17060. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17061. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17062. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17063. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17064. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17065. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17066. Failed writing message. Aborting connection.
  17067. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17068. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17069. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17070. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17071. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17072. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17073. Failed writing message. Aborting connection.
  17074. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17075. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17076. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17077. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17078. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17079. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17080. Failed writing message. Aborting connection.
  17081. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17082. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17083. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17084. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17085. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17086. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17087. Failed writing message. Aborting connection.
  17088. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17089. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17090. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17091. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17092. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17093. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17094. Failed writing message. Aborting connection.
  17095. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17096. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17097. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17098. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17099. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17100. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17101. Failed writing message. Aborting connection.
  17102. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17103. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17104. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17105. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17106. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17107. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17108. Failed writing message. Aborting connection.
  17109. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17110. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17111. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17112. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17113. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17114. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17115. Failed writing message. Aborting connection.
  17116. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17117. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17118. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17119. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17120. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17121. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17122. Failed writing message. Aborting connection.
  17123. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17124. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17125. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17126. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17127. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17128. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17129. Failed writing message. Aborting connection.
  17130. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17131. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17132. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17133. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17134. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17135. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17136. Failed writing message. Aborting connection.
  17137. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17138. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17139. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17140. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17141. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17142. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17143. Failed writing message. Aborting connection.
  17144. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17145. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17146. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17147. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17148. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17149. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17150. Failed writing message. Aborting connection.
  17151. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17152. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17153. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17154. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17155. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17156. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17157. Failed writing message. Aborting connection.
  17158. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17159. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17160. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17161. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17162. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17163. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17164. Failed writing message. Aborting connection.
  17165. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17166. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17167. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17168. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17169. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17170. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17171. Failed writing message. Aborting connection.
  17172. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17173. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17174. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17175. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17176. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17177. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17178. Failed writing message. Aborting connection.
  17179. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17180. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17181. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17182. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17183. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17184. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17185. Failed writing message. Aborting connection.
  17186. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17187. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17188. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17189. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17190. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17191. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17192. Failed writing message. Aborting connection.
  17193. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17194. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17195. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17196. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17197. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17198. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17199. Failed writing message. Aborting connection.
  17200. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17201. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17202. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17203. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17204. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17205. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17206. Failed writing message. Aborting connection.
  17207. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17208. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17209. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17210. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17211. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17212. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17213. Failed writing message. Aborting connection.
  17214. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17215. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17216. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17217. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17218. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17219. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17220. Failed writing message. Aborting connection.
  17221. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17222. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17223. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17224. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17225. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17226. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17227. Failed writing message. Aborting connection.
  17228. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17229. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17230. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17231. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17232. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17233. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17234. Failed writing message. Aborting connection.
  17235. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17236. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17237. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17238. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17239. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17240. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17241. Failed writing message. Aborting connection.
  17242. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17243. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17244. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17245. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17246. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17247. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17248. Failed writing message. Aborting connection.
  17249. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17250. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17251. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17252. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17253. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17254. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17255. Failed writing message. Aborting connection.
  17256. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17257. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17258. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17259. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17260. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17261. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17262. Failed writing message. Aborting connection.
  17263. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17264. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17265. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17266. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17267. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17268. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17269. Failed writing message. Aborting connection.
  17270. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17271. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17272. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17273. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17274. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17275. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17276. Failed writing message. Aborting connection.
  17277. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17278. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17279. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17280. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17281. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17282. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17283. Failed writing message. Aborting connection.
  17284. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17285. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17286. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17287. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17288. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17289. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17290. Failed writing message. Aborting connection.
  17291. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17292. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17293. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17294. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17295. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17296. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17297. Failed writing message. Aborting connection.
  17298. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17299. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17300. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17301. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17302. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17303. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17304. Failed writing message. Aborting connection.
  17305. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17306. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17307. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17308. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17309. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17310. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17311. Failed writing message. Aborting connection.
  17312. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17313. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17314. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17315. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17316. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17317. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17318. Failed writing message. Aborting connection.
  17319. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17320. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17321. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17322. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17323. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17324. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17325. Failed writing message. Aborting connection.
  17326. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17327. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17328. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17329. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17330. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17331. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17332. Failed writing message. Aborting connection.
  17333. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17334. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17335. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17336. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17337. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17338. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17339. Failed writing message. Aborting connection.
  17340. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17341. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17342. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17343. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17344. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17345. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17346. Failed writing message. Aborting connection.
  17347. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17348. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17349. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17350. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17351. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17352. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17353. Failed writing message. Aborting connection.
  17354. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17355. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17356. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17357. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17358. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17359. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17360. Failed writing message. Aborting connection.
  17361. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17362. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17363. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17364. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17365. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17366. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17367. Failed writing message. Aborting connection.
  17368. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17369. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17370. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17371. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17372. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17373. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17374. Failed writing message. Aborting connection.
  17375. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17376. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17377. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17378. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17379. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17380. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17381. Failed writing message. Aborting connection.
  17382. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17383. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17384. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17385. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17386. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17387. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17388. Failed writing message. Aborting connection.
  17389. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17390. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17391. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17392. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17393. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17394. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17395. Failed writing message. Aborting connection.
  17396. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17397. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17398. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17399. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17400. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17401. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17402. Failed writing message. Aborting connection.
  17403. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17404. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17405. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17406. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17407. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17408. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17409. Failed writing message. Aborting connection.
  17410. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17411. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17412. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17413. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17414. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17415. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17416. Failed writing message. Aborting connection.
  17417. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17418. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17419. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17420. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17421. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17422. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17423. Failed writing message. Aborting connection.
  17424. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17425. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17426. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17427. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17428. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17429. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17430. Failed writing message. Aborting connection.
  17431. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17432. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17433. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17434. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17435. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17436. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17437. Failed writing message. Aborting connection.
  17438. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17439. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17440. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17441. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17442. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17443. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17444. Failed writing message. Aborting connection.
  17445. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17446. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17447. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17448. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17449. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17450. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17451. Failed writing message. Aborting connection.
  17452. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17453. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17454. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17455. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17456. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17457. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17458. Failed writing message. Aborting connection.
  17459. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17460. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17461. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17462. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17463. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17464. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17465. Failed writing message. Aborting connection.
  17466. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17467. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17468. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17469. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17470. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17471. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17472. Failed writing message. Aborting connection.
  17473. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17474. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17475. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17476. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17477. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17478. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17479. Failed writing message. Aborting connection.
  17480. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17481. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17482. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17483. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17484. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17485. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17486. Failed writing message. Aborting connection.
  17487. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17488. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17489. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17490. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17491. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17492. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17493. Failed writing message. Aborting connection.
  17494. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17495. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17496. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17497. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17498. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17499. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17500. Failed writing message. Aborting connection.
  17501. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17502. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17503. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17504. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17505. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17506. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17507. Failed writing message. Aborting connection.
  17508. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17509. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17510. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17511. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17512. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17513. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17514. Failed writing message. Aborting connection.
  17515. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17516. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17517. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17518. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17519. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17520. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17521. Failed writing message. Aborting connection.
  17522. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17523. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17524. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17525. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17526. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17527. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17528. Failed writing message. Aborting connection.
  17529. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17530. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17531. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17532. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17533. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17534. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17535. Failed writing message. Aborting connection.
  17536. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17537. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17538. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17539. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17540. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17541. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17542. Failed writing message. Aborting connection.
  17543. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17544. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17545. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17546. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17547. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17548. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17549. Failed writing message. Aborting connection.
  17550. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17551. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17552. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17553. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17554. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17555. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17556. Failed writing message. Aborting connection.
  17557. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17558. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17559. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17560. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17561. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17562. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17563. Failed writing message. Aborting connection.
  17564. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17565. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17566. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17567. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17568. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17569. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17570. Failed writing message. Aborting connection.
  17571. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17572. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17573. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17574. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17575. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17576. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17577. Failed writing message. Aborting connection.
  17578. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17579. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17580. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17581. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17582. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17583. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17584. Failed writing message. Aborting connection.
  17585. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17586. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17587. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17588. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17589. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17590. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17591. Failed writing message. Aborting connection.
  17592. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17593. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17594. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17595. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17596. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17597. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17598. Failed writing message. Aborting connection.
  17599. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17600. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17601. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17602. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17603. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17604. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17605. Failed writing message. Aborting connection.
  17606. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17607. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17608. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17609. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17610. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17611. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17612. Failed writing message. Aborting connection.
  17613. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17614. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17615. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17616. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17617. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17618. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17619. Failed writing message. Aborting connection.
  17620. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17621. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17622. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17623. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17624. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17625. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17626. Failed writing message. Aborting connection.
  17627. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17628. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17629. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17630. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17631. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17632. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17633. Failed writing message. Aborting connection.
  17634. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17635. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17636. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17637. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17638. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17639. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17640. Failed writing message. Aborting connection.
  17641. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17642. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17643. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17644. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17645. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17646. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17647. Failed writing message. Aborting connection.
  17648. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17649. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17650. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17651. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17652. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17653. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17654. Failed writing message. Aborting connection.
  17655. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17656. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17657. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17658. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17659. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17660. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17661. Failed writing message. Aborting connection.
  17662. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17663. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17664. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17665. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17666. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17667. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17668. Failed writing message. Aborting connection.
  17669. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17670. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17671. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17672. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17673. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17674. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17675. Failed writing message. Aborting connection.
  17676. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17677. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17678. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17679. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17680. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17681. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17682. Failed writing message. Aborting connection.
  17683. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17684. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17685. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17686. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17687. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17688. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17689. Failed writing message. Aborting connection.
  17690. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17691. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17692. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17693. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17694. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17695. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17696. Failed writing message. Aborting connection.
  17697. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17698. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17699. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17700. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17701. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17702. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17703. Failed writing message. Aborting connection.
  17704. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17705. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17706. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17707. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17708. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17709. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17710. Failed writing message. Aborting connection.
  17711. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17712. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17713. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17714. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17715. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17716. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17717. Failed writing message. Aborting connection.
  17718. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17719. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17720. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17721. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17722. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17723. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17724. Failed writing message. Aborting connection.
  17725. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17726. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17727. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17728. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17729. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17730. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17731. Failed writing message. Aborting connection.
  17732. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17733. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17734. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17735. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17736. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17737. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17738. Failed writing message. Aborting connection.
  17739. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17740. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17741. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17742. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17743. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17744. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17745. Failed writing message. Aborting connection.
  17746. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17747. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17748. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17749. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17750. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17751. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17752. Failed writing message. Aborting connection.
  17753. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17754. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17755. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17756. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17757. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17758. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17759. Failed writing message. Aborting connection.
  17760. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17761. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17762. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17763. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17764. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17765. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17766. Failed writing message. Aborting connection.
  17767. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17768. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17769. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17770. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17771. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17772. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17773. Failed writing message. Aborting connection.
  17774. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17775. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17776. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17777. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17778. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17779. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17780. Failed writing message. Aborting connection.
  17781. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17782. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17783. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17784. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17785. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17786. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17787. Failed writing message. Aborting connection.
  17788. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17789. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17790. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17791. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17792. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17793. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17794. Failed writing message. Aborting connection.
  17795. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17796. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17797. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17798. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17799. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17800. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17801. Failed writing message. Aborting connection.
  17802. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17803. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17804. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17805. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17806. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17807. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17808. Failed writing message. Aborting connection.
  17809. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17810. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17811. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17812. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17813. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17814. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17815. Failed writing message. Aborting connection.
  17816. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17817. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17818. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17819. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17820. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17821. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17822. Failed writing message. Aborting connection.
  17823. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17824. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17825. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17826. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17827. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17828. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17829. Failed writing message. Aborting connection.
  17830. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17831. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17832. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17833. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17834. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17835. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17836. Failed writing message. Aborting connection.
  17837. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17838. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17839. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17840. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17841. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17842. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17843. Failed writing message. Aborting connection.
  17844. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17845. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17846. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17847. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17848. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17849. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17850. Failed writing message. Aborting connection.
  17851. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17852. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17853. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17854. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17855. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17856. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17857. Failed writing message. Aborting connection.
  17858. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17859. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17860. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17861. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17862. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17863. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17864. Failed writing message. Aborting connection.
  17865. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17866. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17867. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17868. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17869. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17870. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17871. Failed writing message. Aborting connection.
  17872. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17873. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17874. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17875. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17876. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17877. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17878. Failed writing message. Aborting connection.
  17879. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17880. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17881. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17882. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17883. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17884. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17885. Failed writing message. Aborting connection.
  17886. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17887. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17888. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17889. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17890. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17891. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17892. Failed writing message. Aborting connection.
  17893. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17894. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17895. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17896. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17897. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17898. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17899. Failed writing message. Aborting connection.
  17900. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17901. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17902. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17903. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17904. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17905. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17906. Failed writing message. Aborting connection.
  17907. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17908. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17909. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17910. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17911. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17912. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17913. Failed writing message. Aborting connection.
  17914. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17915. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17916. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17917. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17918. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17919. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17920. Failed writing message. Aborting connection.
  17921. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17922. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17923. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17924. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17925. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17926. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17927. Failed writing message. Aborting connection.
  17928. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17929. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17930. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17931. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17932. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17933. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17934. Failed writing message. Aborting connection.
  17935. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17936. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17937. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17938. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17939. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17940. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17941. Failed writing message. Aborting connection.
  17942. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17943. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17944. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17945. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17946. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17947. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17948. Failed writing message. Aborting connection.
  17949. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17950. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17951. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17952. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17953. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17954. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17955. Failed writing message. Aborting connection.
  17956. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17957. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17958. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17959. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17960. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17961. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17962. Failed writing message. Aborting connection.
  17963. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17964. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17965. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17966. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17967. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17968. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17969. Failed writing message. Aborting connection.
  17970. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17971. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17972. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17973. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17974. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17975. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17976. Failed writing message. Aborting connection.
  17977. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17978. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17979. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17980. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17981. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17982. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17983. Failed writing message. Aborting connection.
  17984. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17985. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17986. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17987. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17988. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17989. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17990. Failed writing message. Aborting connection.
  17991. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17992. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  17993. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17994. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  17995. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  17996. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  17997. Failed writing message. Aborting connection.
  17998. System.InvalidOperationException: Writing is not allowed after writer was completed.
  17999. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18000. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18001. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18002. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18003. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18004. Failed writing message. Aborting connection.
  18005. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18006. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18007. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18008. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18009. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18010. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18011. Failed writing message. Aborting connection.
  18012. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18013. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18014. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18015. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18016. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18017. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18018. Failed writing message. Aborting connection.
  18019. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18020. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18021. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18022. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18023. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18024. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18025. Failed writing message. Aborting connection.
  18026. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18027. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18028. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18029. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18030. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18031. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18032. Failed writing message. Aborting connection.
  18033. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18034. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18035. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18036. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18037. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18038. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18039. Failed writing message. Aborting connection.
  18040. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18041. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18042. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18043. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18044. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18045. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18046. Failed writing message. Aborting connection.
  18047. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18048. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18049. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18050. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18051. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18052. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18053. Failed writing message. Aborting connection.
  18054. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18055. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18056. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18057. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18058. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18059. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18060. Failed writing message. Aborting connection.
  18061. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18062. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18063. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18064. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18065. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18066. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18067. Failed writing message. Aborting connection.
  18068. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18069. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18070. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18071. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18072. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18073. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18074. Failed writing message. Aborting connection.
  18075. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18076. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18077. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18078. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18079. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18080. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18081. Failed writing message. Aborting connection.
  18082. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18083. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18084. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18085. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18086. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18087. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18088. Failed writing message. Aborting connection.
  18089. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18090. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18091. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18092. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18093. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18094. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18095. Failed writing message. Aborting connection.
  18096. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18097. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18098. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18099. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18100. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18101. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18102. Failed writing message. Aborting connection.
  18103. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18104. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18105. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18106. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18107. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18108. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18109. Failed writing message. Aborting connection.
  18110. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18111. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18112. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18113. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18114. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18115. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18116. Failed writing message. Aborting connection.
  18117. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18118. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18119. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18120. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18121. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18122. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18123. Failed writing message. Aborting connection.
  18124. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18125. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18126. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18127. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18128. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18129. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18130. Failed writing message. Aborting connection.
  18131. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18132. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18133. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18134. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18135. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18136. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18137. Failed writing message. Aborting connection.
  18138. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18139. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18140. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18141. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18142. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18143. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18144. Failed writing message. Aborting connection.
  18145. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18146. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18147. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18148. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18149. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18150. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18151. Failed writing message. Aborting connection.
  18152. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18153. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18154. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18155. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18156. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18157. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18158. Failed writing message. Aborting connection.
  18159. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18160. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18161. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18162. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18163. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18164. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18165. Failed writing message. Aborting connection.
  18166. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18167. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18168. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18169. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18170. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18171. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18172. Failed writing message. Aborting connection.
  18173. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18174. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18175. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18176. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18177. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18178. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18179. Failed writing message. Aborting connection.
  18180. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18181. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18182. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18183. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18184. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18185. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18186. Failed writing message. Aborting connection.
  18187. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18188. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18189. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18190. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18191. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18192. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18193. Failed writing message. Aborting connection.
  18194. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18195. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18196. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18197. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18198. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18199. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18200. Failed writing message. Aborting connection.
  18201. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18202. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18203. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18204. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18205. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18206. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18207. Failed writing message. Aborting connection.
  18208. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18209. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18210. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18211. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18212. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18213. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18214. Failed writing message. Aborting connection.
  18215. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18216. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18217. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18218. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18219. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18220. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18221. Failed writing message. Aborting connection.
  18222. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18223. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18224. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18225. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18226. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18227. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18228. Failed writing message. Aborting connection.
  18229. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18230. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18231. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18232. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18233. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18234. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18235. Failed writing message. Aborting connection.
  18236. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18237. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18238. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18239. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18240. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18241. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18242. Failed writing message. Aborting connection.
  18243. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18244. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18245. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18246. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18247. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18248. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18249. Failed writing message. Aborting connection.
  18250. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18251. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18252. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18253. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18254. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18255. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18256. Failed writing message. Aborting connection.
  18257. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18258. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18259. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18260. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18261. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18262. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18263. Failed writing message. Aborting connection.
  18264. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18265. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18266. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18267. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18268. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18269. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18270. Failed writing message. Aborting connection.
  18271. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18272. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18273. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18274. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18275. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18276. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18277. Failed writing message. Aborting connection.
  18278. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18279. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18280. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18281. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18282. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18283. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18284. Failed writing message. Aborting connection.
  18285. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18286. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18287. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18288. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18289. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18290. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18291. Failed writing message. Aborting connection.
  18292. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18293. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18294. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18295. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18296. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18297. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18298. Failed writing message. Aborting connection.
  18299. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18300. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18301. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18302. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18303. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18304. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18305. Failed writing message. Aborting connection.
  18306. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18307. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18308. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18309. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18310. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18311. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18312. Failed writing message. Aborting connection.
  18313. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18314. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18315. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18316. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18317. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18318. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18319. Failed writing message. Aborting connection.
  18320. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18321. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18322. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18323. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18324. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18325. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18326. Failed writing message. Aborting connection.
  18327. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18328. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18329. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18330. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18331. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18332. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18333. Failed writing message. Aborting connection.
  18334. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18335. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18336. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18337. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18338. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18339. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18340. Failed writing message. Aborting connection.
  18341. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18342. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18343. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18344. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18345. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18346. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18347. Failed writing message. Aborting connection.
  18348. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18349. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18350. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18351. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18352. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18353. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18354. Failed writing message. Aborting connection.
  18355. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18356. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18357. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18358. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18359. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18360. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18361. Failed writing message. Aborting connection.
  18362. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18363. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18364. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18365. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18366. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18367. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18368. Failed writing message. Aborting connection.
  18369. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18370. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18371. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18372. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18373. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18374. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18375. Failed writing message. Aborting connection.
  18376. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18377. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18378. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18379. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18380. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18381. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18382. Failed writing message. Aborting connection.
  18383. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18384. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18385. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18386. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18387. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18388. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18389. Failed writing message. Aborting connection.
  18390. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18391. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18392. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18393. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18394. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18395. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18396. Failed writing message. Aborting connection.
  18397. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18398. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18399. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18400. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18401. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18402. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18403. Failed writing message. Aborting connection.
  18404. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18405. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18406. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18407. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18408. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18409. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18410. Failed writing message. Aborting connection.
  18411. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18412. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18413. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18414. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18415. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18416. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18417. Failed writing message. Aborting connection.
  18418. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18419. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18420. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18421. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18422. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18423. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18424. Failed writing message. Aborting connection.
  18425. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18426. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18427. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18428. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18429. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18430. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18431. Failed writing message. Aborting connection.
  18432. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18433. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18434. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18435. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18436. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18437. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18438. Failed writing message. Aborting connection.
  18439. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18440. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18441. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18442. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18443. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18444. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18445. Failed writing message. Aborting connection.
  18446. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18447. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18448. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18449. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18450. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18451. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18452. Failed writing message. Aborting connection.
  18453. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18454. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18455. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18456. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18457. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18458. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18459. Failed writing message. Aborting connection.
  18460. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18461. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18462. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18463. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18464. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18465. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18466. Failed writing message. Aborting connection.
  18467. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18468. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18469. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18470. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18471. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18472. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18473. Failed writing message. Aborting connection.
  18474. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18475. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18476. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18477. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18478. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18479. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18480. Failed writing message. Aborting connection.
  18481. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18482. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18483. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18484. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18485. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18486. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18487. Failed writing message. Aborting connection.
  18488. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18489. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18490. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18491. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18492. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18493. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18494. Failed writing message. Aborting connection.
  18495. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18496. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18497. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18498. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18499. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18500. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18501. Failed writing message. Aborting connection.
  18502. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18503. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18504. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18505. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18506. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18507. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18508. Failed writing message. Aborting connection.
  18509. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18510. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18511. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18512. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18513. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18514. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18515. Failed writing message. Aborting connection.
  18516. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18517. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18518. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18519. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18520. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18521. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18522. Failed writing message. Aborting connection.
  18523. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18524. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18525. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18526. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18527. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18528. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18529. Failed writing message. Aborting connection.
  18530. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18531. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18532. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18533. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18534. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18535. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18536. Failed writing message. Aborting connection.
  18537. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18538. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18539. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18540. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18541. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18542. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18543. Failed writing message. Aborting connection.
  18544. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18545. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18546. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18547. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18548. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18549. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18550. Failed writing message. Aborting connection.
  18551. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18552. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18553. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18554. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18555. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18556. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18557. Failed writing message. Aborting connection.
  18558. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18559. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18560. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18561. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18562. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18563. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18564. Failed writing message. Aborting connection.
  18565. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18566. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18567. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18568. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18569. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18570. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18571. Failed writing message. Aborting connection.
  18572. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18573. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18574. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18575. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18576. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18577. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18578. Failed writing message. Aborting connection.
  18579. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18580. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18581. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18582. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18583. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18584. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18585. Failed writing message. Aborting connection.
  18586. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18587. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18588. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18589. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18590. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18591. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18592. Failed writing message. Aborting connection.
  18593. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18594. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18595. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18596. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18597. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18598. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18599. Failed writing message. Aborting connection.
  18600. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18601. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18602. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18603. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18604. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18605. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18606. Failed writing message. Aborting connection.
  18607. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18608. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18609. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18610. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18611. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18612. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18613. Failed writing message. Aborting connection.
  18614. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18615. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18616. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18617. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18618. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18619. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18620. Failed writing message. Aborting connection.
  18621. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18622. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18623. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18624. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18625. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18626. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18627. Failed writing message. Aborting connection.
  18628. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18629. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18630. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18631. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18632. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18633. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18634. Failed writing message. Aborting connection.
  18635. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18636. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18637. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18638. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18639. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18640. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18641. Failed writing message. Aborting connection.
  18642. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18643. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18644. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18645. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18646. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18647. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18648. Failed writing message. Aborting connection.
  18649. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18650. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18651. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18652. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18653. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18654. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18655. Failed writing message. Aborting connection.
  18656. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18657. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18658. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18659. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18660. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18661. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  18662. Heartbeat took longer than "00:00:01" at "06/01/2019 00:41:18 +00:00".
  18663. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18664. Failed writing message. Aborting connection.
  18665. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18666. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18667. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18668. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18669. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18670. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18671. Failed writing message. Aborting connection.
  18672. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18673. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18674. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18675. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18676. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18677. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18678. Failed writing message. Aborting connection.
  18679. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18680. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18681. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18682. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18683. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18684. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18685. Failed writing message. Aborting connection.
  18686. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18687. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18688. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18689. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18690. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18691. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18692. Failed writing message. Aborting connection.
  18693. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18694. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18695. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18696. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18697. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18698. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18699. Failed writing message. Aborting connection.
  18700. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18701. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18702. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18703. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18704. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18705. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18706. Failed writing message. Aborting connection.
  18707. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18708. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18709. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18710. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18711. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18712. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18713. Failed writing message. Aborting connection.
  18714. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18715. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18716. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18717. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18718. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18719. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18720. Failed writing message. Aborting connection.
  18721. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18722. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18723. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18724. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18725. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18726. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18727. Failed writing message. Aborting connection.
  18728. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18729. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18730. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18731. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18732. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18733. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18734. Failed writing message. Aborting connection.
  18735. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18736. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18737. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18738. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18739. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18740. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18741. Failed writing message. Aborting connection.
  18742. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18743. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18744. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18745. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18746. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18747. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18748. Failed writing message. Aborting connection.
  18749. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18750. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18751. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18752. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18753. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18754. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18755. Failed writing message. Aborting connection.
  18756. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18757. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18758. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18759. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18760. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18761. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18762. Failed writing message. Aborting connection.
  18763. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18764. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18765. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18766. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18767. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18768. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18769. Failed writing message. Aborting connection.
  18770. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18771. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18772. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18773. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18774. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18775. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18776. Failed writing message. Aborting connection.
  18777. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18778. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18779. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18780. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18781. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18782. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18783. Failed writing message. Aborting connection.
  18784. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18785. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18786. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18787. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18788. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18789. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18790. Failed writing message. Aborting connection.
  18791. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18792. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18793. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18794. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18795. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18796. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18797. Failed writing message. Aborting connection.
  18798. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18799. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18800. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18801. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18802. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18803. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18804. Failed writing message. Aborting connection.
  18805. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18806. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18807. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18808. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18809. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18810. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18811. Failed writing message. Aborting connection.
  18812. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18813. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18814. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18815. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18816. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18817. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18818. Failed writing message. Aborting connection.
  18819. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18820. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18821. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18822. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18823. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18824. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18825. Failed writing message. Aborting connection.
  18826. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18827. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18828. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18829. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18830. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18831. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18832. Failed writing message. Aborting connection.
  18833. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18834. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18835. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18836. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18837. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18838. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18839. Failed writing message. Aborting connection.
  18840. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18841. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18842. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18843. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18844. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18845. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18846. Failed writing message. Aborting connection.
  18847. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18848. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18849. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18850. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18851. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18852. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18853. Failed writing message. Aborting connection.
  18854. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18855. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18856. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18857. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18858. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18859. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18860. Failed writing message. Aborting connection.
  18861. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18862. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18863. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18864. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18865. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18866. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18867. Failed writing message. Aborting connection.
  18868. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18869. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18870. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18871. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18872. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18873. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18874. Failed writing message. Aborting connection.
  18875. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18876. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18877. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18878. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18879. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18880. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18881. Failed writing message. Aborting connection.
  18882. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18883. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18884. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18885. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18886. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18887. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18888. Failed writing message. Aborting connection.
  18889. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18890. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18891. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18892. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18893. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18894. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18895. Failed writing message. Aborting connection.
  18896. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18897. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18898. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18899. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18900. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18901. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18902. Failed writing message. Aborting connection.
  18903. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18904. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18905. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18906. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18907. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18908. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18909. Failed writing message. Aborting connection.
  18910. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18911. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18912. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18913. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18914. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18915. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18916. Failed writing message. Aborting connection.
  18917. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18918. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18919. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18920. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18921. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18922. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18923. Failed writing message. Aborting connection.
  18924. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18925. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18926. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18927. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18928. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18929. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18930. Failed writing message. Aborting connection.
  18931. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18932. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18933. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18934. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18935. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18936. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18937. Failed writing message. Aborting connection.
  18938. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18939. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18940. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18941. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18942. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18943. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18944. Failed writing message. Aborting connection.
  18945. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18946. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18947. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18948. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18949. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18950. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18951. Failed writing message. Aborting connection.
  18952. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18953. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18954. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18955. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18956. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18957. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18958. Failed writing message. Aborting connection.
  18959. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18960. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18961. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18962. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18963. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18964. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18965. Failed writing message. Aborting connection.
  18966. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18967. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18968. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18969. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18970. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18971. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18972. Failed writing message. Aborting connection.
  18973. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18974. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18975. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18976. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18977. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18978. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18979. Failed writing message. Aborting connection.
  18980. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18981. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18982. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18983. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18984. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18985. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18986. Failed writing message. Aborting connection.
  18987. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18988. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18989. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18990. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18991. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18992. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  18993. Failed writing message. Aborting connection.
  18994. System.InvalidOperationException: Writing is not allowed after writer was completed.
  18995. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  18996. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18997. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  18998. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  18999. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19000. Failed writing message. Aborting connection.
  19001. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19002. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19003. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19004. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19005. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19006. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19007. Failed writing message. Aborting connection.
  19008. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19009. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19010. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19011. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19012. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19013. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19014. Failed writing message. Aborting connection.
  19015. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19016. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19017. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19018. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19019. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19020. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19021. Failed writing message. Aborting connection.
  19022. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19023. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19024. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19025. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19026. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19027. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19028. Failed writing message. Aborting connection.
  19029. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19030. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19031. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19032. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19033. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19034. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19035. Failed writing message. Aborting connection.
  19036. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19037. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19038. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19039. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19040. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19041. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19042. Failed writing message. Aborting connection.
  19043. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19044. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19045. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19046. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19047. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19048. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19049. Failed writing message. Aborting connection.
  19050. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19051. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19052. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19053. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19054. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19055. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19056. Failed writing message. Aborting connection.
  19057. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19058. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19059. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19060. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19061. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19062. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19063. Failed writing message. Aborting connection.
  19064. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19065. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19066. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19067. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19068. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19069. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19070. Failed writing message. Aborting connection.
  19071. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19072. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19073. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19074. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19075. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19076. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19077. Failed writing message. Aborting connection.
  19078. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19079. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19080. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19081. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19082. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19083. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19084. Failed writing message. Aborting connection.
  19085. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19086. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19087. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19088. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19089. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19090. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19091. Failed writing message. Aborting connection.
  19092. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19093. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19094. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19095. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19096. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19097. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19098. Failed writing message. Aborting connection.
  19099. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19100. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19101. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19102. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19103. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19104. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19105. Failed writing message. Aborting connection.
  19106. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19107. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19108. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19109. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19110. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19111. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19112. Failed writing message. Aborting connection.
  19113. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19114. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19115. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19116. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19117. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19118. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19119. Failed writing message. Aborting connection.
  19120. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19121. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19122. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19123. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19124. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19125. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19126. Failed writing message. Aborting connection.
  19127. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19128. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19129. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19130. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19131. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19132. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19133. Failed writing message. Aborting connection.
  19134. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19135. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19136. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19137. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19138. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19139. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19140. Failed writing message. Aborting connection.
  19141. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19142. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19143. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19144. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19145. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19146. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19147. Failed writing message. Aborting connection.
  19148. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19149. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19150. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19151. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19152. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19153. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19154. Failed writing message. Aborting connection.
  19155. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19156. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19157. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19158. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19159. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19160. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19161. Failed writing message. Aborting connection.
  19162. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19163. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19164. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19165. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19166. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19167. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19168. Failed writing message. Aborting connection.
  19169. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19170. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19171. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19172. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19173. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19174. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19175. Failed writing message. Aborting connection.
  19176. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19177. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19178. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19179. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19180. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19181. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19182. Failed writing message. Aborting connection.
  19183. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19184. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19185. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19186. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19187. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19188. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19189. Failed writing message. Aborting connection.
  19190. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19191. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19192. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19193. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19194. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19195. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19196. Failed writing message. Aborting connection.
  19197. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19198. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19199. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19200. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19201. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19202. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19203. Failed writing message. Aborting connection.
  19204. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19205. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19206. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19207. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19208. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19209. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19210. Failed writing message. Aborting connection.
  19211. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19212. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19213. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19214. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19215. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19216. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19217. Failed writing message. Aborting connection.
  19218. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19219. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19220. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19221. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19222. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19223. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19224. Failed writing message. Aborting connection.
  19225. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19226. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19227. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19228. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19229. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19230. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19231. Failed writing message. Aborting connection.
  19232. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19233. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19234. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19235. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19236. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19237. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19238. Failed writing message. Aborting connection.
  19239. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19240. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19241. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19242. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19243. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19244. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19245. Failed writing message. Aborting connection.
  19246. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19247. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19248. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19249. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19250. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19251. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19252. Failed writing message. Aborting connection.
  19253. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19254. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19255. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19256. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19257. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19258. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19259. Failed writing message. Aborting connection.
  19260. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19261. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19262. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19263. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19264. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19265. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19266. Failed writing message. Aborting connection.
  19267. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19268. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19269. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19270. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19271. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19272. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19273. Failed writing message. Aborting connection.
  19274. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19275. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19276. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19277. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19278. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19279. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19280. Failed writing message. Aborting connection.
  19281. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19282. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19283. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19284. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19285. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19286. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19287. Failed writing message. Aborting connection.
  19288. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19289. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19290. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19291. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19292. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19293. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19294. Failed writing message. Aborting connection.
  19295. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19296. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19297. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19298. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19299. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19300. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19301. Failed writing message. Aborting connection.
  19302. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19303. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19304. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19305. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19306. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19307. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19308. Failed writing message. Aborting connection.
  19309. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19310. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19311. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19312. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19313. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19314. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19315. Failed writing message. Aborting connection.
  19316. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19317. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19318. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19319. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19320. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19321. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19322. Failed writing message. Aborting connection.
  19323. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19324. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19325. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19326. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19327. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19328. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19329. Failed writing message. Aborting connection.
  19330. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19331. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19332. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19333. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19334. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19335. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19336. Failed writing message. Aborting connection.
  19337. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19338. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19339. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19340. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19341. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19342. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19343. Failed writing message. Aborting connection.
  19344. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19345. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19346. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19347. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19348. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19349. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19350. Failed writing message. Aborting connection.
  19351. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19352. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19353. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19354. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19355. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19356. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19357. Failed writing message. Aborting connection.
  19358. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19359. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19360. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19361. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19362. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19363. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19364. Failed writing message. Aborting connection.
  19365. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19366. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19367. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19368. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19369. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19370. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19371. Failed writing message. Aborting connection.
  19372. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19373. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19374. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19375. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19376. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19377. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19378. Failed writing message. Aborting connection.
  19379. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19380. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19381. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19382. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19383. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19384. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19385. Failed writing message. Aborting connection.
  19386. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19387. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19388. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19389. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19390. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19391. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19392. Failed writing message. Aborting connection.
  19393. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19394. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19395. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19396. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19397. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19398. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19399. Failed writing message. Aborting connection.
  19400. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19401. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19402. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19403. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19404. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19405. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19406. Failed writing message. Aborting connection.
  19407. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19408. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19409. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19410. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19411. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19412. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19413. Failed writing message. Aborting connection.
  19414. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19415. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19416. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19417. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19418. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19419. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19420. Failed writing message. Aborting connection.
  19421. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19422. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19423. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19424. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19425. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19426. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19427. Failed writing message. Aborting connection.
  19428. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19429. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19430. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19431. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19432. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19433. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19434. Failed writing message. Aborting connection.
  19435. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19436. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19437. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19438. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19439. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19440. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19441. Failed writing message. Aborting connection.
  19442. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19443. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19444. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19445. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19446. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19447. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19448. Failed writing message. Aborting connection.
  19449. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19450. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19451. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19452. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19453. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19454. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19455. Failed writing message. Aborting connection.
  19456. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19457. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19458. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19459. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19460. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19461. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19462. Failed writing message. Aborting connection.
  19463. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19464. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19465. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19466. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19467. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19468. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19469. Failed writing message. Aborting connection.
  19470. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19471. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19472. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19473. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19474. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19475. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19476. Failed writing message. Aborting connection.
  19477. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19478. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19479. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19480. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19481. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19482. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19483. Failed writing message. Aborting connection.
  19484. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19485. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19486. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19487. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19488. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19489. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19490. Failed writing message. Aborting connection.
  19491. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19492. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19493. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19494. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19495. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19496. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19497. Failed writing message. Aborting connection.
  19498. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19499. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19500. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19501. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19502. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19503. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19504. Failed writing message. Aborting connection.
  19505. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19506. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19507. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19508. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19509. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19510. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19511. Failed writing message. Aborting connection.
  19512. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19513. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19514. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19515. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19516. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19517. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19518. Failed writing message. Aborting connection.
  19519. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19520. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19521. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19522. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19523. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19524. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19525. Failed writing message. Aborting connection.
  19526. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19527. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19528. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19529. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19530. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19531. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19532. Failed writing message. Aborting connection.
  19533. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19534. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19535. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19536. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19537. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19538. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19539. Failed writing message. Aborting connection.
  19540. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19541. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19542. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19543. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19544. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19545. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19546. Failed writing message. Aborting connection.
  19547. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19548. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19549. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19550. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19551. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19552. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19553. Failed writing message. Aborting connection.
  19554. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19555. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19556. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19557. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19558. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19559. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19560. Failed writing message. Aborting connection.
  19561. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19562. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19563. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19564. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19565. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19566. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19567. Failed writing message. Aborting connection.
  19568. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19569. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19570. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19571. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19572. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19573. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19574. Failed writing message. Aborting connection.
  19575. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19576. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19577. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19578. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19579. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19580. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19581. Failed writing message. Aborting connection.
  19582. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19583. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19584. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19585. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19586. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19587. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19588. Failed writing message. Aborting connection.
  19589. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19590. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19591. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19592. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19593. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19594. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19595. Failed writing message. Aborting connection.
  19596. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19597. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19598. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19599. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19600. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19601. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19602. Failed writing message. Aborting connection.
  19603. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19604. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19605. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19606. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19607. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19608. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19609. Failed writing message. Aborting connection.
  19610. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19611. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19612. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19613. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19614. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19615. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19616. Failed writing message. Aborting connection.
  19617. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19618. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19619. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19620. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19621. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19622. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19623. Failed writing message. Aborting connection.
  19624. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19625. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19626. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19627. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19628. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19629. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19630. Failed writing message. Aborting connection.
  19631. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19632. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19633. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19634. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19635. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19636. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19637. Failed writing message. Aborting connection.
  19638. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19639. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19640. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19641. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19642. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19643. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19644. Failed writing message. Aborting connection.
  19645. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19646. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19647. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19648. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19649. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19650. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19651. Failed writing message. Aborting connection.
  19652. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19653. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19654. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19655. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19656. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19657. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19658. Failed writing message. Aborting connection.
  19659. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19660. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19661. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19662. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19663. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19664. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19665. Failed writing message. Aborting connection.
  19666. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19667. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19668. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19669. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19670. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19671. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19672. Failed writing message. Aborting connection.
  19673. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19674. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19675. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19676. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19677. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19678. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19679. Failed writing message. Aborting connection.
  19680. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19681. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19682. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19683. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19684. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19685. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19686. Failed writing message. Aborting connection.
  19687. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19688. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19689. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19690. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19691. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19692. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19693. Failed writing message. Aborting connection.
  19694. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19695. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19696. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19697. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19698. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19699. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19700. Failed writing message. Aborting connection.
  19701. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19702. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19703. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19704. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19705. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19706. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19707. Failed writing message. Aborting connection.
  19708. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19709. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19710. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19711. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19712. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19713. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19714. Failed writing message. Aborting connection.
  19715. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19716. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19717. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19718. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19719. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19720. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19721. Failed writing message. Aborting connection.
  19722. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19723. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19724. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19725. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19726. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19727. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19728. Failed writing message. Aborting connection.
  19729. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19730. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19731. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19732. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19733. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19734. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19735. Failed writing message. Aborting connection.
  19736. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19737. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19738. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19739. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19740. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19741. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19742. Failed writing message. Aborting connection.
  19743. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19744. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19745. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19746. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19747. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19748. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19749. Failed writing message. Aborting connection.
  19750. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19751. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19752. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19753. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19754. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19755. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19756. Failed writing message. Aborting connection.
  19757. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19758. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19759. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19760. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19761. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19762. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19763. Failed writing message. Aborting connection.
  19764. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19765. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19766. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19767. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19768. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19769. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19770. Failed writing message. Aborting connection.
  19771. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19772. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19773. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19774. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19775. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19776. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19777. Failed writing message. Aborting connection.
  19778. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19779. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19780. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19781. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19782. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19783. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19784. Failed writing message. Aborting connection.
  19785. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19786. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19787. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19788. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19789. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19790. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19791. Failed writing message. Aborting connection.
  19792. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19793. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19794. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19795. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19796. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19797. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19798. Failed writing message. Aborting connection.
  19799. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19800. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19801. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19802. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19803. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19804. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19805. Failed writing message. Aborting connection.
  19806. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19807. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19808. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19809. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19810. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19811. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19812. Failed writing message. Aborting connection.
  19813. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19814. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19815. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19816. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19817. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19818. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19819. Failed writing message. Aborting connection.
  19820. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19821. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19822. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19823. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19824. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19825. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19826. Failed writing message. Aborting connection.
  19827. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19828. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19829. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19830. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19831. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19832. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19833. Failed writing message. Aborting connection.
  19834. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19835. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19836. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19837. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19838. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19839. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19840. Failed writing message. Aborting connection.
  19841. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19842. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19843. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19844. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19845. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19846. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19847. Failed writing message. Aborting connection.
  19848. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19849. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19850. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19851. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19852. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19853. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19854. Failed writing message. Aborting connection.
  19855. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19856. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19857. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19858. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19859. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19860. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19861. Failed writing message. Aborting connection.
  19862. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19863. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19864. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19865. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19866. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19867. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19868. Failed writing message. Aborting connection.
  19869. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19870. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19871. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19872. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19873. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19874. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19875. Failed writing message. Aborting connection.
  19876. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19877. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19878. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19879. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19880. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19881. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19882. Failed writing message. Aborting connection.
  19883. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19884. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19885. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19886. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19887. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19888. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19889. Failed writing message. Aborting connection.
  19890. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19891. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19892. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19893. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19894. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19895. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19896. Failed writing message. Aborting connection.
  19897. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19898. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19899. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19900. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19901. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19902. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19903. Failed writing message. Aborting connection.
  19904. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19905. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19906. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19907. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19908. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19909. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19910. Failed writing message. Aborting connection.
  19911. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19912. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19913. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19914. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19915. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19916. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19917. Failed writing message. Aborting connection.
  19918. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19919. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19920. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19921. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19922. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19923. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19924. Failed writing message. Aborting connection.
  19925. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19926. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19927. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19928. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19929. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19930. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19931. Failed writing message. Aborting connection.
  19932. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19933. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19934. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19935. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19936. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19937. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19938. Failed writing message. Aborting connection.
  19939. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19940. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19941. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19942. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19943. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19944. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19945. Failed writing message. Aborting connection.
  19946. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19947. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19948. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19949. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19950. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19951. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19952. Failed writing message. Aborting connection.
  19953. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19954. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19955. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19956. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19957. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19958. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19959. Failed writing message. Aborting connection.
  19960. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19961. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19962. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19963. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19964. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19965. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19966. Failed writing message. Aborting connection.
  19967. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19968. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19969. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19970. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19971. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19972. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19973. Failed writing message. Aborting connection.
  19974. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19975. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19976. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19977. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19978. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19979. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19980. Failed writing message. Aborting connection.
  19981. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19982. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19983. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19984. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19985. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19986. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19987. Failed writing message. Aborting connection.
  19988. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19989. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19990. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19991. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19992. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  19993. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  19994. Failed writing message. Aborting connection.
  19995. System.InvalidOperationException: Writing is not allowed after writer was completed.
  19996. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  19997. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19998. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  19999. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20000. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20001. Failed writing message. Aborting connection.
  20002. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20003. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20004. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20005. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20006. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20007. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20008. Failed writing message. Aborting connection.
  20009. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20010. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20011. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20012. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20013. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20014. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20015. Failed writing message. Aborting connection.
  20016. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20017. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20018. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20019. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20020. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20021. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20022. Failed writing message. Aborting connection.
  20023. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20024. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20025. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20026. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20027. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20028. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20029. Failed writing message. Aborting connection.
  20030. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20031. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20032. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20033. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20034. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20035. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20036. Failed writing message. Aborting connection.
  20037. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20038. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20039. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20040. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20041. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20042. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20043. Failed writing message. Aborting connection.
  20044. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20045. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20046. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20047. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20048. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20049. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20050. Failed writing message. Aborting connection.
  20051. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20052. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20053. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20054. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20055. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20056. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20057. Failed writing message. Aborting connection.
  20058. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20059. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20060. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20061. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20062. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20063. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20064. Failed writing message. Aborting connection.
  20065. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20066. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20067. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20068. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20069. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20070. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20071. Failed writing message. Aborting connection.
  20072. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20073. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20074. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20075. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20076. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20077. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20078. Failed writing message. Aborting connection.
  20079. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20080. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20081. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20082. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20083. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20084. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20085. Failed writing message. Aborting connection.
  20086. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20087. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20088. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20089. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20090. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20091. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20092. Failed writing message. Aborting connection.
  20093. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20094. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20095. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20096. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20097. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20098. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20099. Failed writing message. Aborting connection.
  20100. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20101. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20102. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20103. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20104. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20105. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20106. Failed writing message. Aborting connection.
  20107. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20108. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20109. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20110. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20111. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20112. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20113. Failed writing message. Aborting connection.
  20114. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20115. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20116. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20117. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20118. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20119. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20120. Failed writing message. Aborting connection.
  20121. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20122. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20123. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20124. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20125. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20126. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20127. Failed writing message. Aborting connection.
  20128. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20129. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20130. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20131. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20132. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20133. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20134. Failed writing message. Aborting connection.
  20135. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20136. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20137. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20138. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20139. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20140. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20141. Failed writing message. Aborting connection.
  20142. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20143. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20144. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20145. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20146. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20147. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20148. Failed writing message. Aborting connection.
  20149. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20150. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20151. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20152. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20153. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20154. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20155. Failed writing message. Aborting connection.
  20156. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20157. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20158. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20159. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20160. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20161. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20162. Failed writing message. Aborting connection.
  20163. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20164. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20165. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20166. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20167. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20168. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20169. Failed writing message. Aborting connection.
  20170. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20171. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20172. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20173. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20174. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20175. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20176. Failed writing message. Aborting connection.
  20177. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20178. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20179. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20180. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20181. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20182. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20183. Failed writing message. Aborting connection.
  20184. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20185. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20186. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20187. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20188. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20189. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20190. Failed writing message. Aborting connection.
  20191. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20192. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20193. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20194. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20195. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20196. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20197. Failed writing message. Aborting connection.
  20198. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20199. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20200. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20201. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20202. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20203. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20204. Failed writing message. Aborting connection.
  20205. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20206. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20207. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20208. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20209. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20210. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20211. Failed writing message. Aborting connection.
  20212. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20213. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20214. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20215. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20216. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20217. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20218. Failed writing message. Aborting connection.
  20219. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20220. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20221. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20222. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20223. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20224. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20225. Failed writing message. Aborting connection.
  20226. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20227. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20228. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20229. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20230. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20231. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20232. Failed writing message. Aborting connection.
  20233. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20234. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20235. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20236. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20237. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20238. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20239. Failed writing message. Aborting connection.
  20240. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20241. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20242. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20243. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20244. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20245. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20246. Failed writing message. Aborting connection.
  20247. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20248. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20249. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20250. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20251. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20252. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20253. Failed writing message. Aborting connection.
  20254. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20255. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20256. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20257. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20258. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20259. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20260. Failed writing message. Aborting connection.
  20261. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20262. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20263. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20264. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20265. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20266. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20267. Failed writing message. Aborting connection.
  20268. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20269. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20270. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20271. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20272. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20273. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20274. Failed writing message. Aborting connection.
  20275. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20276. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20277. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20278. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20279. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20280. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20281. Failed writing message. Aborting connection.
  20282. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20283. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20284. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20285. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20286. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20287. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20288. Failed writing message. Aborting connection.
  20289. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20290. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20291. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20292. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20293. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20294. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20295. Failed writing message. Aborting connection.
  20296. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20297. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20298. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20299. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20300. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20301. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20302. Failed writing message. Aborting connection.
  20303. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20304. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20305. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20306. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20307. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20308. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20309. Failed writing message. Aborting connection.
  20310. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20311. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20312. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20313. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20314. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20315. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20316. Failed writing message. Aborting connection.
  20317. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20318. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20319. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20320. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20321. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20322. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20323. Failed writing message. Aborting connection.
  20324. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20325. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20326. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20327. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20328. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20329. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20330. Failed writing message. Aborting connection.
  20331. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20332. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20333. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20334. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20335. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20336. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20337. Failed writing message. Aborting connection.
  20338. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20339. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20340. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20341. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20342. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20343. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20344. Failed writing message. Aborting connection.
  20345. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20346. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20347. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20348. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20349. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20350. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20351. Failed writing message. Aborting connection.
  20352. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20353. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20354. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20355. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20356. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20357. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20358. Failed writing message. Aborting connection.
  20359. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20360. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20361. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20362. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20363. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20364. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20365. Failed writing message. Aborting connection.
  20366. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20367. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20368. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20369. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20370. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20371. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20372. Failed writing message. Aborting connection.
  20373. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20374. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20375. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20376. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20377. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20378. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20379. Failed writing message. Aborting connection.
  20380. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20381. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20382. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20383. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20384. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20385. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20386. Failed writing message. Aborting connection.
  20387. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20388. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20389. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20390. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20391. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20392. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20393. Failed writing message. Aborting connection.
  20394. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20395. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20396. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20397. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20398. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20399. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20400. Failed writing message. Aborting connection.
  20401. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20402. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20403. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20404. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20405. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20406. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20407. Failed writing message. Aborting connection.
  20408. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20409. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20410. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20411. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20412. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20413. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20414. Failed writing message. Aborting connection.
  20415. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20416. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20417. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20418. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20419. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20420. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20421. Failed writing message. Aborting connection.
  20422. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20423. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20424. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20425. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20426. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20427. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20428. Failed writing message. Aborting connection.
  20429. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20430. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20431. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20432. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20433. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20434. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20435. Failed writing message. Aborting connection.
  20436. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20437. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20438. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20439. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20440. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20441. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20442. Failed writing message. Aborting connection.
  20443. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20444. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20445. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20446. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20447. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20448. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20449. Failed writing message. Aborting connection.
  20450. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20451. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20452. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20453. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20454. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20455. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20456. Failed writing message. Aborting connection.
  20457. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20458. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20459. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20460. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20461. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20462. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20463. Failed writing message. Aborting connection.
  20464. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20465. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20466. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20467. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20468. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20469. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20470. Failed writing message. Aborting connection.
  20471. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20472. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20473. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20474. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20475. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20476. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20477. Failed writing message. Aborting connection.
  20478. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20479. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20480. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20481. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20482. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20483. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20484. Failed writing message. Aborting connection.
  20485. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20486. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20487. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20488. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20489. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20490. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20491. Failed writing message. Aborting connection.
  20492. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20493. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20494. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20495. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20496. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20497. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20498. Failed writing message. Aborting connection.
  20499. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20500. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20501. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20502. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20503. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20504. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20505. Failed writing message. Aborting connection.
  20506. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20507. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20508. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20509. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20510. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20511. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20512. Failed writing message. Aborting connection.
  20513. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20514. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20515. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20516. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20517. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20518. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20519. Failed writing message. Aborting connection.
  20520. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20521. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20522. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20523. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20524. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20525. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20526. Failed writing message. Aborting connection.
  20527. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20528. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20529. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20530. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20531. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20532. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20533. Failed writing message. Aborting connection.
  20534. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20535. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20536. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20537. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20538. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20539. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20540. Failed writing message. Aborting connection.
  20541. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20542. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20543. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20544. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20545. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20546. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20547. Failed writing message. Aborting connection.
  20548. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20549. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20550. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20551. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20552. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20553. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20554. Failed writing message. Aborting connection.
  20555. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20556. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20557. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20558. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20559. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20560. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20561. Failed writing message. Aborting connection.
  20562. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20563. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20564. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20565. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20566. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20567. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20568. Failed writing message. Aborting connection.
  20569. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20570. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20571. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20572. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20573. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20574. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20575. Failed writing message. Aborting connection.
  20576. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20577. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20578. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20579. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20580. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20581. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20582. Failed writing message. Aborting connection.
  20583. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20584. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20585. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20586. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20587. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20588. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20589. Failed writing message. Aborting connection.
  20590. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20591. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20592. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20593. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20594. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20595. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20596. Failed writing message. Aborting connection.
  20597. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20598. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20599. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20600. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20601. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20602. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20603. Failed writing message. Aborting connection.
  20604. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20605. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20606. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20607. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20608. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20609. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20610. Failed writing message. Aborting connection.
  20611. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20612. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20613. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20614. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20615. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20616. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20617. Failed writing message. Aborting connection.
  20618. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20619. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20620. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20621. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20622. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20623. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20624. Failed writing message. Aborting connection.
  20625. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20626. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20627. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20628. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20629. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20630. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20631. Failed writing message. Aborting connection.
  20632. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20633. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20634. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20635. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20636. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20637. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20638. Failed writing message. Aborting connection.
  20639. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20640. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20641. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20642. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20643. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20644. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20645. Failed writing message. Aborting connection.
  20646. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20647. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20648. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20649. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20650. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20651. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20652. Failed writing message. Aborting connection.
  20653. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20654. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20655. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20656. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20657. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20658. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20659. Failed writing message. Aborting connection.
  20660. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20661. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20662. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20663. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20664. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20665. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20666. Failed writing message. Aborting connection.
  20667. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20668. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20669. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20670. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20671. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20672. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20673. Failed writing message. Aborting connection.
  20674. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20675. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20676. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20677. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20678. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20679. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20680. Failed writing message. Aborting connection.
  20681. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20682. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20683. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20684. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20685. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20686. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20687. Failed writing message. Aborting connection.
  20688. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20689. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20690. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20691. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20692. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20693. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20694. Failed writing message. Aborting connection.
  20695. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20696. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20697. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20698. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20699. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20700. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20701. Failed writing message. Aborting connection.
  20702. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20703. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20704. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20705. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20706. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20707. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20708. Failed writing message. Aborting connection.
  20709. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20710. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20711. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20712. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20713. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20714. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20715. Failed writing message. Aborting connection.
  20716. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20717. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20718. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20719. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20720. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20721. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20722. Failed writing message. Aborting connection.
  20723. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20724. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20725. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20726. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20727. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20728. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20729. Failed writing message. Aborting connection.
  20730. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20731. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20732. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20733. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20734. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20735. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20736. Failed writing message. Aborting connection.
  20737. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20738. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20739. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20740. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20741. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20742. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20743. Failed writing message. Aborting connection.
  20744. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20745. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20746. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20747. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20748. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20749. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20750. Failed writing message. Aborting connection.
  20751. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20752. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20753. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20754. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20755. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20756. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20757. Failed writing message. Aborting connection.
  20758. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20759. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20760. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20761. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20762. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20763. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20764. Failed writing message. Aborting connection.
  20765. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20766. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20767. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20768. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20769. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20770. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20771. Failed writing message. Aborting connection.
  20772. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20773. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20774. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20775. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20776. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20777. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20778. Failed writing message. Aborting connection.
  20779. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20780. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20781. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20782. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20783. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20784. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20785. Failed writing message. Aborting connection.
  20786. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20787. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20788. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20789. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20790. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20791. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20792. Failed writing message. Aborting connection.
  20793. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20794. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20795. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20796. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20797. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20798. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20799. Failed writing message. Aborting connection.
  20800. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20801. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20802. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20803. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20804. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20805. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20806. Failed writing message. Aborting connection.
  20807. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20808. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20809. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20810. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20811. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20812. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20813. Failed writing message. Aborting connection.
  20814. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20815. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20816. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20817. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20818. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20819. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20820. Failed writing message. Aborting connection.
  20821. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20822. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20823. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20824. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20825. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20826. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20827. Failed writing message. Aborting connection.
  20828. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20829. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20830. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20831. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20832. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20833. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20834. Failed writing message. Aborting connection.
  20835. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20836. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20837. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20838. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20839. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20840. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20841. Failed writing message. Aborting connection.
  20842. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20843. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20844. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20845. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20846. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20847. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20848. Failed writing message. Aborting connection.
  20849. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20850. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20851. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20852. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20853. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20854. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20855. Failed writing message. Aborting connection.
  20856. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20857. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20858. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20859. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20860. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20861. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20862. Failed writing message. Aborting connection.
  20863. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20864. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20865. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20866. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20867. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20868. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20869. Failed writing message. Aborting connection.
  20870. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20871. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20872. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20873. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20874. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20875. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20876. Failed writing message. Aborting connection.
  20877. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20878. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20879. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20880. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20881. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20882. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20883. Failed writing message. Aborting connection.
  20884. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20885. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20886. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20887. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20888. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20889. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20890. Failed writing message. Aborting connection.
  20891. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20892. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20893. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20894. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20895. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20896. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20897. Failed writing message. Aborting connection.
  20898. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20899. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20900. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20901. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20902. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20903. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20904. Failed writing message. Aborting connection.
  20905. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20906. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20907. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20908. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20909. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20910. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20911. Failed writing message. Aborting connection.
  20912. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20913. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20914. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20915. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20916. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20917. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20918. Failed writing message. Aborting connection.
  20919. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20920. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20921. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20922. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20923. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20924. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20925. Failed writing message. Aborting connection.
  20926. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20927. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20928. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20929. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20930. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20931. [00:14:38] Current: 82998, peak: 91541, connected: 0, disconnected: 3441, rate: -3441/s
  20932. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20933. Failed writing message. Aborting connection.
  20934. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20935. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20936. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20937. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20938. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20939. [00:14:39] Current: 82974, peak: 91541, connected: 0, disconnected: 24, rate: -24/s
  20940. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  20941. Heartbeat took longer than "00:00:01" at "06/01/2019 00:41:26 +00:00".
  20942. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  20943. Heartbeat took longer than "00:00:01" at "06/01/2019 00:41:26 +00:00".
  20944. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  20945. Heartbeat took longer than "00:00:01" at "06/01/2019 00:41:28 +00:00".
  20946. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  20947. Heartbeat took longer than "00:00:01" at "06/01/2019 00:41:28 +00:00".
  20948. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20949. Failed writing message. Aborting connection.
  20950. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20951. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20952. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20953. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20954. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20955. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20956. Failed writing message. Aborting connection.
  20957. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20958. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20959. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20960. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20961. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20962. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20963. Failed writing message. Aborting connection.
  20964. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20965. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20966. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20967. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20968. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20969. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20970. Failed writing message. Aborting connection.
  20971. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20972. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20973. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20974. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20975. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20976. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20977. Failed writing message. Aborting connection.
  20978. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20979. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20980. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20981. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20982. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20983. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  20984. Heartbeat took longer than "00:00:01" at "06/01/2019 00:41:30 +00:00".
  20985. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  20986. Heartbeat took longer than "00:00:01" at "06/01/2019 00:41:30 +00:00".
  20987. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20988. Failed writing message. Aborting connection.
  20989. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20990. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20991. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20992. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20993. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  20994. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  20995. Failed writing message. Aborting connection.
  20996. System.InvalidOperationException: Writing is not allowed after writer was completed.
  20997. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  20998. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  20999. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21000. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21001. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21002. Failed writing message. Aborting connection.
  21003. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21004. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21005. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21006. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21007. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21008. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21009. Failed writing message. Aborting connection.
  21010. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21011. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21012. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21013. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21014. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21015. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21016. Failed writing message. Aborting connection.
  21017. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21018. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21019. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21020. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21021. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21022. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21023. Failed writing message. Aborting connection.
  21024. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21025. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21026. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21027. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21028. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21029. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21030. Failed writing message. Aborting connection.
  21031. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21032. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21033. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21034. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21035. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21036. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21037. Failed writing message. Aborting connection.
  21038. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21039. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21040. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21041. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21042. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21043. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21044. Failed writing message. Aborting connection.
  21045. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21046. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21047. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21048. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21049. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21050. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21051. Failed writing message. Aborting connection.
  21052. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21053. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21054. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21055. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21056. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21057. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21058. Failed writing message. Aborting connection.
  21059. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21060. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21061. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21062. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21063. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21064. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21065. Failed writing message. Aborting connection.
  21066. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21067. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21068. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21069. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21070. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21071. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21072. Failed writing message. Aborting connection.
  21073. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21074. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21075. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21076. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21077. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21078. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21079. Failed writing message. Aborting connection.
  21080. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21081. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21082. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21083. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21084. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21085. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21086. Failed writing message. Aborting connection.
  21087. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21088. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21089. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21090. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21091. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21092. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21093. Failed writing message. Aborting connection.
  21094. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21095. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21096. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21097. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21098. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21099. [00:14:46] Current: 81379, peak: 91541, connected: 0, disconnected: 1595, rate: -1595/s
  21100. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21101. Failed writing message. Aborting connection.
  21102. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21103. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21104. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21105. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21106. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21107. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21108. Failed writing message. Aborting connection.
  21109. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21110. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21111. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21112. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21113. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21114. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21115. Failed writing message. Aborting connection.
  21116. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21117. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21118. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21119. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21120. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21121. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21122. Failed writing message. Aborting connection.
  21123. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21124. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21125. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21126. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21127. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21128. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21129. Failed writing message. Aborting connection.
  21130. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21131. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21132. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21133. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21134. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21135. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21136. Failed writing message. Aborting connection.
  21137. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21138. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21139. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21140. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21141. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21142. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21143. Failed writing message. Aborting connection.
  21144. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21145. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21146. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21147. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21148. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21149. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21150. Failed writing message. Aborting connection.
  21151. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21152. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21153. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21154. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21155. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21156. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21157. Failed writing message. Aborting connection.
  21158. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21159. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21160. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21161. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21162. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21163. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21164. Failed writing message. Aborting connection.
  21165. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21166. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21167. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21168. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21169. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21170. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21171. Failed writing message. Aborting connection.
  21172. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21173. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21174. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21175. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21176. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21177. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21178. Failed writing message. Aborting connection.
  21179. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21180. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21181. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21182. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21183. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21184. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21185. Failed writing message. Aborting connection.
  21186. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21187. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21188. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21189. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21190. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21191. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21192. Failed writing message. Aborting connection.
  21193. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21194. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21195. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21196. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21197. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21198. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21199. Failed writing message. Aborting connection.
  21200. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21201. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21202. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21203. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21204. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21205. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21206. Failed writing message. Aborting connection.
  21207. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21208. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21209. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21210. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21211. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21212. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21213. Failed writing message. Aborting connection.
  21214. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21215. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21216. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21217. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21218. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21219. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21220. Failed writing message. Aborting connection.
  21221. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21222. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21223. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21224. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21225. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21226. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21227. Failed writing message. Aborting connection.
  21228. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21229. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21230. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21231. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21232. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21233. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21234. Failed writing message. Aborting connection.
  21235. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21236. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21237. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21238. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21239. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21240. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21241. Failed writing message. Aborting connection.
  21242. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21243. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21244. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21245. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21246. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21247. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21248. Failed writing message. Aborting connection.
  21249. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21250. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21251. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21252. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21253. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21254. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21255. Failed writing message. Aborting connection.
  21256. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21257. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21258. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21259. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21260. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21261. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21262. Failed writing message. Aborting connection.
  21263. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21264. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21265. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21266. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21267. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21268. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21269. Failed writing message. Aborting connection.
  21270. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21271. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21272. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21273. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21274. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21275. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21276. Failed writing message. Aborting connection.
  21277. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21278. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21279. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21280. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21281. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21282. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21283. Failed writing message. Aborting connection.
  21284. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21285. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21286. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21287. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21288. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21289. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21290. Failed writing message. Aborting connection.
  21291. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21292. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21293. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21294. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21295. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21296. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21297. Failed writing message. Aborting connection.
  21298. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21299. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21300. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21301. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21302. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21303. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21304. Failed writing message. Aborting connection.
  21305. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21306. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21307. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21308. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21309. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21310. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21311. Failed writing message. Aborting connection.
  21312. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21313. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21314. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21315. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21316. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21317. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21318. Failed writing message. Aborting connection.
  21319. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21320. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21321. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21322. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21323. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21324. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21325. Failed writing message. Aborting connection.
  21326. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21327. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21328. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21329. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21330. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21331. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21332. Failed writing message. Aborting connection.
  21333. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21334. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21335. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21336. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21337. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21338. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21339. Failed writing message. Aborting connection.
  21340. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21341. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21342. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21343. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21344. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21345. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21346. Failed writing message. Aborting connection.
  21347. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21348. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21349. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21350. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21351. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21352. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21353. Failed writing message. Aborting connection.
  21354. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21355. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21356. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21357. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21358. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21359. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21360. Failed writing message. Aborting connection.
  21361. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21362. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21363. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21364. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21365. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21366. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21367. Failed writing message. Aborting connection.
  21368. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21369. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21370. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21371. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21372. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21373. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21374. Failed writing message. Aborting connection.
  21375. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21376. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21377. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21378. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21379. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21380. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21381. Failed writing message. Aborting connection.
  21382. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21383. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21384. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21385. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21386. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21387. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21388. Failed writing message. Aborting connection.
  21389. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21390. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21391. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21392. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21393. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21394. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21395. Failed writing message. Aborting connection.
  21396. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21397. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21398. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21399. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21400. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21401. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21402. Failed writing message. Aborting connection.
  21403. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21404. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21405. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21406. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21407. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21408. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21409. Failed writing message. Aborting connection.
  21410. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21411. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21412. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21413. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21414. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21415. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21416. Failed writing message. Aborting connection.
  21417. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21418. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21419. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21420. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21421. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21422. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21423. Failed writing message. Aborting connection.
  21424. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21425. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21426. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21427. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21428. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21429. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21430. Failed writing message. Aborting connection.
  21431. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21432. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21433. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21434. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21435. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21436. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21437. Failed writing message. Aborting connection.
  21438. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21439. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21440. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21441. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21442. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21443. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21444. Failed writing message. Aborting connection.
  21445. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21446. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21447. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21448. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21449. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21450. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21451. Failed writing message. Aborting connection.
  21452. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21453. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21454. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21455. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21456. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21457. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21458. Failed writing message. Aborting connection.
  21459. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21460. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21461. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21462. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21463. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21464. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21465. Failed writing message. Aborting connection.
  21466. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21467. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21468. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21469. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21470. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21471. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21472. Failed writing message. Aborting connection.
  21473. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21474. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21475. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21476. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21477. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21478. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21479. Failed writing message. Aborting connection.
  21480. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21481. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21482. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21483. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21484. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21485. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21486. Failed writing message. Aborting connection.
  21487. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21488. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21489. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21490. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21491. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21492. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21493. Failed writing message. Aborting connection.
  21494. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21495. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21496. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21497. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21498. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21499. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21500. Failed writing message. Aborting connection.
  21501. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21502. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21503. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21504. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21505. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21506. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21507. Failed writing message. Aborting connection.
  21508. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21509. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21510. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21511. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21512. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21513. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21514. Failed writing message. Aborting connection.
  21515. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21516. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21517. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21518. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21519. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21520. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21521. Failed writing message. Aborting connection.
  21522. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21523. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21524. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21525. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21526. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21527. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21528. Failed writing message. Aborting connection.
  21529. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21530. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21531. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21532. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21533. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21534. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21535. Failed writing message. Aborting connection.
  21536. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21537. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21538. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21539. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21540. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21541. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21542. Failed writing message. Aborting connection.
  21543. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21544. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21545. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21546. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21547. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21548. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21549. Failed writing message. Aborting connection.
  21550. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21551. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21552. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21553. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21554. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21555. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21556. Failed writing message. Aborting connection.
  21557. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21558. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21559. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21560. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21561. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21562. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21563. Failed writing message. Aborting connection.
  21564. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21565. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21566. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21567. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21568. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21569. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21570. Failed writing message. Aborting connection.
  21571. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21572. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21573. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21574. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21575. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21576. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21577. Failed writing message. Aborting connection.
  21578. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21579. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21580. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21581. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21582. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21583. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21584. Failed writing message. Aborting connection.
  21585. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21586. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21587. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21588. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21589. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21590. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21591. Failed writing message. Aborting connection.
  21592. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21593. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21594. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21595. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21596. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21597. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21598. Failed writing message. Aborting connection.
  21599. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21600. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21601. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21602. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21603. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21604. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21605. Failed writing message. Aborting connection.
  21606. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21607. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21608. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21609. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21610. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21611. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21612. Failed writing message. Aborting connection.
  21613. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21614. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21615. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21616. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21617. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21618. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21619. Failed writing message. Aborting connection.
  21620. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21621. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21622. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21623. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21624. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21625. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21626. Failed writing message. Aborting connection.
  21627. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21628. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21629. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21630. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21631. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21632. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21633. Failed writing message. Aborting connection.
  21634. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21635. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21636. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21637. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21638. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21639. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21640. Failed writing message. Aborting connection.
  21641. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21642. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21643. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21644. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21645. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21646. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21647. Failed writing message. Aborting connection.
  21648. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21649. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21650. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21651. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21652. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21653. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21654. Failed writing message. Aborting connection.
  21655. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21656. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21657. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21658. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21659. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21660. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21661. Failed writing message. Aborting connection.
  21662. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21663. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21664. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21665. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21666. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21667. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21668. Failed writing message. Aborting connection.
  21669. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21670. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21671. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21672. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21673. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21674. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21675. Failed writing message. Aborting connection.
  21676. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21677. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21678. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21679. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21680. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21681. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21682. Failed writing message. Aborting connection.
  21683. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21684. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21685. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21686. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21687. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21688. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21689. Failed writing message. Aborting connection.
  21690. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21691. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21692. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21693. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21694. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21695. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21696. Failed writing message. Aborting connection.
  21697. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21698. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21699. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21700. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21701. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21702. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21703. Failed writing message. Aborting connection.
  21704. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21705. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21706. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21707. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21708. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21709. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21710. Failed writing message. Aborting connection.
  21711. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21712. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21713. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21714. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21715. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21716. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21717. Failed writing message. Aborting connection.
  21718. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21719. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21720. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21721. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21722. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21723. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21724. Failed writing message. Aborting connection.
  21725. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21726. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21727. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21728. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21729. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21730. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21731. Failed writing message. Aborting connection.
  21732. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21733. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21734. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21735. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21736. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21737. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21738. Failed writing message. Aborting connection.
  21739. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21740. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21741. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21742. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21743. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21744. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21745. Failed writing message. Aborting connection.
  21746. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21747. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21748. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21749. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21750. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21751. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21752. Failed writing message. Aborting connection.
  21753. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21754. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21755. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21756. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21757. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21758. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21759. Failed writing message. Aborting connection.
  21760. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21761. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21762. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21763. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21764. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21765. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21766. Failed writing message. Aborting connection.
  21767. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21768. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21769. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21770. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21771. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21772. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21773. Failed writing message. Aborting connection.
  21774. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21775. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21776. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21777. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21778. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21779. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21780. Failed writing message. Aborting connection.
  21781. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21782. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21783. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21784. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21785. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21786. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21787. Failed writing message. Aborting connection.
  21788. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21789. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21790. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21791. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21792. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21793. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21794. Failed writing message. Aborting connection.
  21795. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21796. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21797. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21798. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21799. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21800. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21801. Failed writing message. Aborting connection.
  21802. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21803. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21804. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21805. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21806. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21807. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21808. Failed writing message. Aborting connection.
  21809. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21810. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21811. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21812. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21813. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21814. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21815. Failed writing message. Aborting connection.
  21816. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21817. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21818. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21819. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21820. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21821. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21822. Failed writing message. Aborting connection.
  21823. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21824. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21825. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21826. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21827. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21828. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21829. Failed writing message. Aborting connection.
  21830. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21831. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21832. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21833. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21834. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21835. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21836. Failed writing message. Aborting connection.
  21837. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21838. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21839. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21840. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21841. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21842. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21843. Failed writing message. Aborting connection.
  21844. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21845. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21846. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21847. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21848. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21849. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21850. Failed writing message. Aborting connection.
  21851. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21852. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21853. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21854. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21855. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21856. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21857. Failed writing message. Aborting connection.
  21858. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21859. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21860. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21861. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21862. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21863. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21864. Failed writing message. Aborting connection.
  21865. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21866. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21867. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21868. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21869. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21870. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21871. Failed writing message. Aborting connection.
  21872. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21873. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21874. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21875. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21876. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21877. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21878. Failed writing message. Aborting connection.
  21879. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21880. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21881. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21882. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21883. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21884. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21885. Failed writing message. Aborting connection.
  21886. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21887. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21888. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21889. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21890. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21891. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21892. Failed writing message. Aborting connection.
  21893. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21894. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21895. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21896. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21897. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21898. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21899. Failed writing message. Aborting connection.
  21900. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21901. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21902. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21903. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21904. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21905. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21906. Failed writing message. Aborting connection.
  21907. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21908. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21909. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21910. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21911. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21912. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21913. Failed writing message. Aborting connection.
  21914. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21915. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21916. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21917. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21918. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21919. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21920. Failed writing message. Aborting connection.
  21921. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21922. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21923. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21924. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21925. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21926. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21927. Failed writing message. Aborting connection.
  21928. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21929. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21930. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21931. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21932. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21933. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21934. Failed writing message. Aborting connection.
  21935. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21936. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21937. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21938. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21939. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21940. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21941. Failed writing message. Aborting connection.
  21942. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21943. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21944. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21945. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21946. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21947. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21948. Failed writing message. Aborting connection.
  21949. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21950. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21951. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21952. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21953. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21954. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21955. Failed writing message. Aborting connection.
  21956. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21957. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21958. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21959. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21960. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21961. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21962. Failed writing message. Aborting connection.
  21963. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21964. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21965. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21966. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21967. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21968. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21969. Failed writing message. Aborting connection.
  21970. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21971. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21972. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21973. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21974. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21975. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21976. Failed writing message. Aborting connection.
  21977. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21978. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21979. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21980. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21981. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21982. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21983. Failed writing message. Aborting connection.
  21984. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21985. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21986. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21987. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21988. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21989. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21990. Failed writing message. Aborting connection.
  21991. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21992. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  21993. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21994. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  21995. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  21996. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  21997. Failed writing message. Aborting connection.
  21998. System.InvalidOperationException: Writing is not allowed after writer was completed.
  21999. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22000. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22001. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22002. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22003. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22004. Failed writing message. Aborting connection.
  22005. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22006. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22007. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22008. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22009. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22010. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22011. Failed writing message. Aborting connection.
  22012. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22013. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22014. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22015. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22016. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22017. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22018. Failed writing message. Aborting connection.
  22019. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22020. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22021. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22022. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22023. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22024. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22025. Failed writing message. Aborting connection.
  22026. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22027. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22028. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22029. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22030. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22031. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22032. Failed writing message. Aborting connection.
  22033. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22034. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22035. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22036. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22037. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22038. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22039. Failed writing message. Aborting connection.
  22040. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22041. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22042. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22043. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22044. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22045. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22046. Failed writing message. Aborting connection.
  22047. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22048. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22049. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22050. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22051. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22052. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22053. Failed writing message. Aborting connection.
  22054. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22055. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22056. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22057. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22058. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22059. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22060. Failed writing message. Aborting connection.
  22061. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22062. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22063. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22064. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22065. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22066. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22067. Failed writing message. Aborting connection.
  22068. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22069. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22070. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22071. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22072. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22073. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22074. Failed writing message. Aborting connection.
  22075. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22076. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22077. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22078. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22079. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22080. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22081. Failed writing message. Aborting connection.
  22082. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22083. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22084. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22085. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22086. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22087. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22088. Failed writing message. Aborting connection.
  22089. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22090. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22091. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22092. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22093. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22094. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22095. Failed writing message. Aborting connection.
  22096. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22097. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22098. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22099. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22100. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22101. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22102. Failed writing message. Aborting connection.
  22103. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22104. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22105. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22106. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22107. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22108. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22109. Failed writing message. Aborting connection.
  22110. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22111. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22112. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22113. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22114. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22115. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22116. Failed writing message. Aborting connection.
  22117. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22118. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22119. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22120. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22121. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22122. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22123. Failed writing message. Aborting connection.
  22124. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22125. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22126. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22127. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22128. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22129. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22130. Failed writing message. Aborting connection.
  22131. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22132. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22133. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22134. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22135. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22136. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22137. Failed writing message. Aborting connection.
  22138. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22139. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22140. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22141. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22142. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22143. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22144. Failed writing message. Aborting connection.
  22145. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22146. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22147. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22148. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22149. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22150. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22151. Failed writing message. Aborting connection.
  22152. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22153. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22154. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22155. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22156. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22157. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22158. Failed writing message. Aborting connection.
  22159. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22160. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22161. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22162. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22163. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22164. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22165. Failed writing message. Aborting connection.
  22166. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22167. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22168. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22169. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22170. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22171. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  22172. Heartbeat took longer than "00:00:01" at "06/01/2019 00:41:34 +00:00".
  22173. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22174. Failed writing message. Aborting connection.
  22175. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22176. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22177. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22178. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22179. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22180. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22181. Failed writing message. Aborting connection.
  22182. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22183. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22184. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22185. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22186. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22187. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22188. Failed writing message. Aborting connection.
  22189. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22190. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22191. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22192. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22193. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22194. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22195. Failed writing message. Aborting connection.
  22196. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22197. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22198. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22199. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22200. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22201. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22202. Failed writing message. Aborting connection.
  22203. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22204. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22205. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22206. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22207. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22208. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22209. Failed writing message. Aborting connection.
  22210. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22211. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22212. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22213. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22214. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22215. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22216. Failed writing message. Aborting connection.
  22217. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22218. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22219. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22220. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22221. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22222. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22223. Failed writing message. Aborting connection.
  22224. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22225. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22226. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22227. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22228. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22229. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22230. Failed writing message. Aborting connection.
  22231. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22232. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22233. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22234. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22235. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22236. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22237. Failed writing message. Aborting connection.
  22238. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22239. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22240. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22241. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22242. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22243. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22244. Failed writing message. Aborting connection.
  22245. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22246. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22247. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22248. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22249. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22250. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22251. Failed writing message. Aborting connection.
  22252. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22253. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22254. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22255. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22256. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22257. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22258. Failed writing message. Aborting connection.
  22259. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22260. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22261. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22262. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22263. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22264. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22265. Failed writing message. Aborting connection.
  22266. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22267. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22268. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22269. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22270. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22271. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22272. Failed writing message. Aborting connection.
  22273. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22274. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22275. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22276. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22277. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22278. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22279. Failed writing message. Aborting connection.
  22280. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22281. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22282. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22283. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22284. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22285. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22286. Failed writing message. Aborting connection.
  22287. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22288. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22289. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22290. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22291. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22292. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22293. Failed writing message. Aborting connection.
  22294. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22295. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22296. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22297. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22298. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22299. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22300. Failed writing message. Aborting connection.
  22301. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22302. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22303. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22304. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22305. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22306. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22307. Failed writing message. Aborting connection.
  22308. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22309. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22310. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22311. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22312. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22313. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22314. Failed writing message. Aborting connection.
  22315. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22316. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22317. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22318. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22319. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22320. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22321. Failed writing message. Aborting connection.
  22322. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22323. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22324. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22325. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22326. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22327. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22328. Failed writing message. Aborting connection.
  22329. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22330. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22331. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22332. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22333. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22334. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22335. Failed writing message. Aborting connection.
  22336. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22337. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22338. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22339. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22340. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22341. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22342. Failed writing message. Aborting connection.
  22343. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22344. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22345. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22346. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22347. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22348. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22349. Failed writing message. Aborting connection.
  22350. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22351. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22352. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22353. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22354. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22355. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22356. Failed writing message. Aborting connection.
  22357. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22358. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22359. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22360. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22361. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22362. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22363. Failed writing message. Aborting connection.
  22364. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22365. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22366. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22367. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22368. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22369. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22370. Failed writing message. Aborting connection.
  22371. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22372. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22373. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22374. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22375. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22376. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22377. Failed writing message. Aborting connection.
  22378. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22379. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22380. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22381. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22382. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22383. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22384. Failed writing message. Aborting connection.
  22385. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22386. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22387. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22388. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22389. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22390. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22391. Failed writing message. Aborting connection.
  22392. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22393. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22394. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22395. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22396. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22397. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22398. Failed writing message. Aborting connection.
  22399. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22400. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22401. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22402. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22403. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22404. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22405. Failed writing message. Aborting connection.
  22406. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22407. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22408. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22409. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22410. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22411. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22412. Failed writing message. Aborting connection.
  22413. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22414. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22415. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22416. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22417. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22418. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22419. Failed writing message. Aborting connection.
  22420. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22421. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22422. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22423. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22424. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22425. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22426. Failed writing message. Aborting connection.
  22427. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22428. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22429. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22430. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22431. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22432. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22433. Failed writing message. Aborting connection.
  22434. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22435. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22436. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22437. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22438. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22439. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22440. Failed writing message. Aborting connection.
  22441. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22442. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22443. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22444. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22445. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22446. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22447. Failed writing message. Aborting connection.
  22448. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22449. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22450. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22451. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22452. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22453. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22454. Failed writing message. Aborting connection.
  22455. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22456. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22457. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22458. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22459. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22460. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22461. Failed writing message. Aborting connection.
  22462. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22463. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22464. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22465. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22466. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22467. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22468. Failed writing message. Aborting connection.
  22469. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22470. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22471. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22472. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22473. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22474. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22475. Failed writing message. Aborting connection.
  22476. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22477. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22478. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22479. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22480. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22481. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22482. Failed writing message. Aborting connection.
  22483. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22484. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22485. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22486. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22487. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22488. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22489. Failed writing message. Aborting connection.
  22490. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22491. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22492. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22493. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22494. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22495. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22496. Failed writing message. Aborting connection.
  22497. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22498. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22499. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22500. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22501. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22502. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22503. Failed writing message. Aborting connection.
  22504. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22505. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22506. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22507. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22508. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22509. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22510. Failed writing message. Aborting connection.
  22511. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22512. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22513. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22514. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22515. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22516. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22517. Failed writing message. Aborting connection.
  22518. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22519. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22520. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22521. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22522. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22523. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22524. Failed writing message. Aborting connection.
  22525. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22526. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22527. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22528. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22529. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22530. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22531. Failed writing message. Aborting connection.
  22532. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22533. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22534. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22535. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22536. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22537. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22538. Failed writing message. Aborting connection.
  22539. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22540. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22541. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22542. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22543. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22544. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22545. Failed writing message. Aborting connection.
  22546. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22547. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22548. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22549. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22550. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22551. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22552. Failed writing message. Aborting connection.
  22553. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22554. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22555. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22556. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22557. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22558. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22559. Failed writing message. Aborting connection.
  22560. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22561. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22562. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22563. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22564. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22565. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22566. Failed writing message. Aborting connection.
  22567. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22568. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22569. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22570. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22571. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22572. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22573. Failed writing message. Aborting connection.
  22574. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22575. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22576. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22577. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22578. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22579. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22580. Failed writing message. Aborting connection.
  22581. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22582. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22583. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22584. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22585. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22586. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22587. Failed writing message. Aborting connection.
  22588. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22589. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22590. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22591. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22592. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22593. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22594. Failed writing message. Aborting connection.
  22595. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22596. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22597. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22598. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22599. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22600. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22601. Failed writing message. Aborting connection.
  22602. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22603. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22604. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22605. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22606. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22607. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22608. Failed writing message. Aborting connection.
  22609. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22610. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22611. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22612. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22613. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22614. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22615. Failed writing message. Aborting connection.
  22616. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22617. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22618. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22619. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22620. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22621. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22622. Failed writing message. Aborting connection.
  22623. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22624. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22625. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22626. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22627. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22628. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22629. Failed writing message. Aborting connection.
  22630. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22631. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22632. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22633. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22634. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22635. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22636. Failed writing message. Aborting connection.
  22637. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22638. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22639. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22640. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22641. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22642. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22643. Failed writing message. Aborting connection.
  22644. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22645. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22646. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22647. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22648. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22649. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22650. Failed writing message. Aborting connection.
  22651. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22652. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22653. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22654. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22655. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22656. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22657. Failed writing message. Aborting connection.
  22658. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22659. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22660. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22661. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22662. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22663. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22664. Failed writing message. Aborting connection.
  22665. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22666. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22667. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22668. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22669. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22670. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22671. Failed writing message. Aborting connection.
  22672. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22673. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22674. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22675. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22676. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22677. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22678. Failed writing message. Aborting connection.
  22679. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22680. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22681. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22682. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22683. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22684. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22685. Failed writing message. Aborting connection.
  22686. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22687. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22688. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22689. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22690. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22691. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22692. Failed writing message. Aborting connection.
  22693. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22694. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22695. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22696. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22697. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22698. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22699. Failed writing message. Aborting connection.
  22700. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22701. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22702. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22703. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22704. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22705. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22706. Failed writing message. Aborting connection.
  22707. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22708. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22709. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22710. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22711. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22712. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22713. Failed writing message. Aborting connection.
  22714. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22715. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22716. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22717. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22718. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22719. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22720. Failed writing message. Aborting connection.
  22721. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22722. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22723. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22724. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22725. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22726. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22727. Failed writing message. Aborting connection.
  22728. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22729. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22730. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22731. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22732. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22733. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22734. Failed writing message. Aborting connection.
  22735. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22736. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22737. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22738. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22739. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22740. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22741. Failed writing message. Aborting connection.
  22742. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22743. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22744. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22745. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22746. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22747. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22748. Failed writing message. Aborting connection.
  22749. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22750. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22751. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22752. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22753. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22754. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22755. Failed writing message. Aborting connection.
  22756. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22757. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22758. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22759. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22760. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22761. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22762. Failed writing message. Aborting connection.
  22763. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22764. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22765. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22766. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22767. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22768. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22769. Failed writing message. Aborting connection.
  22770. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22771. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22772. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22773. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22774. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22775. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22776. Failed writing message. Aborting connection.
  22777. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22778. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22779. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22780. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22781. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22782. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22783. Failed writing message. Aborting connection.
  22784. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22785. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22786. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22787. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22788. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22789. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22790. Failed writing message. Aborting connection.
  22791. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22792. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22793. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22794. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22795. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22796. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22797. Failed writing message. Aborting connection.
  22798. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22799. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22800. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22801. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22802. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22803. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22804. Failed writing message. Aborting connection.
  22805. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22806. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22807. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22808. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22809. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22810. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22811. Failed writing message. Aborting connection.
  22812. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22813. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22814. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22815. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22816. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22817. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22818. Failed writing message. Aborting connection.
  22819. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22820. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22821. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22822. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22823. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22824. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22825. Failed writing message. Aborting connection.
  22826. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22827. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22828. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22829. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22830. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22831. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22832. Failed writing message. Aborting connection.
  22833. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22834. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22835. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22836. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22837. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22838. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22839. Failed writing message. Aborting connection.
  22840. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22841. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22842. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22843. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22844. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22845. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22846. Failed writing message. Aborting connection.
  22847. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22848. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22849. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22850. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22851. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22852. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22853. Failed writing message. Aborting connection.
  22854. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22855. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22856. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22857. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22858. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22859. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22860. Failed writing message. Aborting connection.
  22861. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22862. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22863. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22864. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22865. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22866. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22867. Failed writing message. Aborting connection.
  22868. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22869. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22870. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22871. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22872. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22873. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22874. Failed writing message. Aborting connection.
  22875. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22876. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22877. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22878. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22879. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22880. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22881. Failed writing message. Aborting connection.
  22882. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22883. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22884. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22885. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22886. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22887. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22888. Failed writing message. Aborting connection.
  22889. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22890. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22891. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22892. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22893. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22894. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22895. Failed writing message. Aborting connection.
  22896. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22897. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22898. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22899. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22900. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22901. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22902. Failed writing message. Aborting connection.
  22903. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22904. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22905. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22906. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22907. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22908. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22909. Failed writing message. Aborting connection.
  22910. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22911. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22912. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22913. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22914. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22915. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22916. Failed writing message. Aborting connection.
  22917. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22918. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22919. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22920. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22921. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22922. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22923. Failed writing message. Aborting connection.
  22924. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22925. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22926. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22927. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22928. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22929. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22930. Failed writing message. Aborting connection.
  22931. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22932. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22933. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22934. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22935. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22936. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22937. Failed writing message. Aborting connection.
  22938. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22939. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22940. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22941. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22942. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22943. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22944. Failed writing message. Aborting connection.
  22945. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22946. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22947. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22948. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22949. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22950. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22951. Failed writing message. Aborting connection.
  22952. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22953. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22954. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22955. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22956. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22957. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22958. Failed writing message. Aborting connection.
  22959. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22960. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22961. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22962. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22963. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22964. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22965. Failed writing message. Aborting connection.
  22966. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22967. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22968. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22969. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22970. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22971. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22972. Failed writing message. Aborting connection.
  22973. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22974. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22975. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22976. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22977. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22978. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22979. Failed writing message. Aborting connection.
  22980. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22981. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22982. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22983. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22984. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22985. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22986. Failed writing message. Aborting connection.
  22987. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22988. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22989. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22990. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22991. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22992. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  22993. Failed writing message. Aborting connection.
  22994. System.InvalidOperationException: Writing is not allowed after writer was completed.
  22995. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  22996. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22997. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  22998. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  22999. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23000. Failed writing message. Aborting connection.
  23001. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23002. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23003. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23004. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23005. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23006. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23007. Failed writing message. Aborting connection.
  23008. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23009. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23010. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23011. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23012. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23013. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23014. Failed writing message. Aborting connection.
  23015. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23016. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23017. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23018. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23019. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23020. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23021. Failed writing message. Aborting connection.
  23022. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23023. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23024. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23025. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23026. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23027. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23028. Failed writing message. Aborting connection.
  23029. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23030. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23031. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23032. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23033. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23034. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23035. Failed writing message. Aborting connection.
  23036. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23037. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23038. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23039. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23040. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23041. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23042. Failed writing message. Aborting connection.
  23043. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23044. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23045. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23046. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23047. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23048. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23049. Failed writing message. Aborting connection.
  23050. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23051. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23052. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23053. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23054. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23055. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23056. Failed writing message. Aborting connection.
  23057. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23058. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23059. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23060. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23061. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23062. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23063. Failed writing message. Aborting connection.
  23064. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23065. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23066. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23067. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23068. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23069. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23070. Failed writing message. Aborting connection.
  23071. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23072. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23073. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23074. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23075. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23076. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23077. Failed writing message. Aborting connection.
  23078. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23079. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23080. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23081. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23082. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23083. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23084. Failed writing message. Aborting connection.
  23085. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23086. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23087. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23088. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23089. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23090. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23091. Failed writing message. Aborting connection.
  23092. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23093. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23094. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23095. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23096. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23097. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23098. Failed writing message. Aborting connection.
  23099. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23100. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23101. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23102. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23103. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23104. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23105. Failed writing message. Aborting connection.
  23106. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23107. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23108. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23109. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23110. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23111. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23112. Failed writing message. Aborting connection.
  23113. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23114. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23115. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23116. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23117. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23118. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23119. Failed writing message. Aborting connection.
  23120. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23121. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23122. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23123. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23124. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23125. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23126. Failed writing message. Aborting connection.
  23127. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23128. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23129. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23130. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23131. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23132. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23133. Failed writing message. Aborting connection.
  23134. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23135. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23136. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23137. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23138. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23139. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23140. Failed writing message. Aborting connection.
  23141. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23142. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23143. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23144. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23145. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23146. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23147. Failed writing message. Aborting connection.
  23148. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23149. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23150. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23151. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23152. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23153. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23154. Failed writing message. Aborting connection.
  23155. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23156. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23157. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23158. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23159. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23160. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23161. Failed writing message. Aborting connection.
  23162. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23163. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23164. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23165. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23166. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23167. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23168. Failed writing message. Aborting connection.
  23169. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23170. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23171. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23172. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23173. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23174. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23175. Failed writing message. Aborting connection.
  23176. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23177. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23178. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23179. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23180. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23181. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23182. Failed writing message. Aborting connection.
  23183. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23184. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23185. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23186. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23187. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23188. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23189. Failed writing message. Aborting connection.
  23190. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23191. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23192. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23193. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23194. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23195. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23196. Failed writing message. Aborting connection.
  23197. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23198. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23199. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23200. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23201. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23202. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23203. Failed writing message. Aborting connection.
  23204. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23205. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23206. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23207. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23208. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23209. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23210. Failed writing message. Aborting connection.
  23211. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23212. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23213. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23214. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23215. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23216. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23217. Failed writing message. Aborting connection.
  23218. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23219. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23220. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23221. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23222. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23223. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23224. Failed writing message. Aborting connection.
  23225. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23226. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23227. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23228. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23229. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23230. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23231. Failed writing message. Aborting connection.
  23232. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23233. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23234. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23235. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23236. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23237. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23238. Failed writing message. Aborting connection.
  23239. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23240. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23241. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23242. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23243. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23244. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23245. Failed writing message. Aborting connection.
  23246. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23247. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23248. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23249. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23250. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23251. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23252. Failed writing message. Aborting connection.
  23253. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23254. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23255. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23256. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23257. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23258. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23259. Failed writing message. Aborting connection.
  23260. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23261. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23262. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23263. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23264. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23265. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23266. Failed writing message. Aborting connection.
  23267. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23268. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23269. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23270. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23271. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23272. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23273. Failed writing message. Aborting connection.
  23274. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23275. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23276. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23277. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23278. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23279. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23280. Failed writing message. Aborting connection.
  23281. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23282. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23283. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23284. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23285. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23286. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23287. Failed writing message. Aborting connection.
  23288. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23289. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23290. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23291. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23292. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23293. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23294. Failed writing message. Aborting connection.
  23295. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23296. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23297. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23298. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23299. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23300. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23301. Failed writing message. Aborting connection.
  23302. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23303. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23304. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23305. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23306. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23307. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23308. Failed writing message. Aborting connection.
  23309. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23310. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23311. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23312. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23313. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23314. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23315. Failed writing message. Aborting connection.
  23316. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23317. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23318. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23319. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23320. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23321. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23322. Failed writing message. Aborting connection.
  23323. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23324. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23325. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23326. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23327. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23328. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23329. Failed writing message. Aborting connection.
  23330. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23331. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23332. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23333. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23334. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23335. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23336. Failed writing message. Aborting connection.
  23337. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23338. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23339. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23340. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23341. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23342. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23343. Failed writing message. Aborting connection.
  23344. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23345. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23346. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23347. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23348. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23349. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23350. Failed writing message. Aborting connection.
  23351. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23352. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23353. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23354. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23355. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23356. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23357. Failed writing message. Aborting connection.
  23358. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23359. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23360. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23361. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23362. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23363. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23364. Failed writing message. Aborting connection.
  23365. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23366. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23367. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23368. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23369. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23370. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23371. Failed writing message. Aborting connection.
  23372. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23373. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23374. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23375. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23376. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23377. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23378. Failed writing message. Aborting connection.
  23379. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23380. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23381. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23382. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23383. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23384. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23385. Failed writing message. Aborting connection.
  23386. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23387. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23388. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23389. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23390. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23391. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23392. Failed writing message. Aborting connection.
  23393. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23394. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23395. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23396. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23397. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23398. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23399. Failed writing message. Aborting connection.
  23400. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23401. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23402. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23403. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23404. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23405. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23406. Failed writing message. Aborting connection.
  23407. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23408. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23409. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23410. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23411. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23412. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23413. Failed writing message. Aborting connection.
  23414. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23415. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23416. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23417. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23418. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23419. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23420. Failed writing message. Aborting connection.
  23421. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23422. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23423. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23424. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23425. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23426. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23427. Failed writing message. Aborting connection.
  23428. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23429. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23430. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23431. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23432. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23433. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23434. Failed writing message. Aborting connection.
  23435. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23436. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23437. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23438. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23439. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23440. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23441. Failed writing message. Aborting connection.
  23442. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23443. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23444. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23445. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23446. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23447. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23448. Failed writing message. Aborting connection.
  23449. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23450. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23451. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23452. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23453. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23454. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23455. Failed writing message. Aborting connection.
  23456. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23457. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23458. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23459. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23460. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23461. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23462. Failed writing message. Aborting connection.
  23463. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23464. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23465. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23466. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23467. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23468. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23469. Failed writing message. Aborting connection.
  23470. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23471. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23472. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23473. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23474. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23475. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23476. Failed writing message. Aborting connection.
  23477. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23478. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23479. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23480. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23481. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23482. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23483. Failed writing message. Aborting connection.
  23484. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23485. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23486. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23487. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23488. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23489. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23490. Failed writing message. Aborting connection.
  23491. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23492. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23493. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23494. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23495. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23496. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23497. Failed writing message. Aborting connection.
  23498. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23499. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23500. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23501. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23502. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23503. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23504. Failed writing message. Aborting connection.
  23505. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23506. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23507. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23508. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23509. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23510. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23511. Failed writing message. Aborting connection.
  23512. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23513. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23514. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23515. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23516. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23517. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23518. Failed writing message. Aborting connection.
  23519. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23520. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23521. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23522. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23523. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23524. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23525. Failed writing message. Aborting connection.
  23526. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23527. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23528. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23529. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23530. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23531. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23532. Failed writing message. Aborting connection.
  23533. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23534. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23535. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23536. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23537. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23538. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23539. Failed writing message. Aborting connection.
  23540. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23541. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23542. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23543. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23544. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23545. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23546. Failed writing message. Aborting connection.
  23547. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23548. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23549. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23550. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23551. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23552. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23553. Failed writing message. Aborting connection.
  23554. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23555. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23556. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23557. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23558. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23559. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23560. Failed writing message. Aborting connection.
  23561. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23562. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23563. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23564. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23565. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23566. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23567. Failed writing message. Aborting connection.
  23568. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23569. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23570. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23571. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23572. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23573. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23574. Failed writing message. Aborting connection.
  23575. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23576. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23577. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23578. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23579. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23580. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23581. Failed writing message. Aborting connection.
  23582. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23583. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23584. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23585. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23586. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23587. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23588. Failed writing message. Aborting connection.
  23589. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23590. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23591. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23592. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23593. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23594. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23595. Failed writing message. Aborting connection.
  23596. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23597. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23598. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23599. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23600. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23601. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23602. Failed writing message. Aborting connection.
  23603. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23604. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23605. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23606. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23607. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23608. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23609. Failed writing message. Aborting connection.
  23610. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23611. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23612. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23613. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23614. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23615. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23616. Failed writing message. Aborting connection.
  23617. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23618. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23619. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23620. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23621. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23622. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23623. Failed writing message. Aborting connection.
  23624. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23625. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23626. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23627. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23628. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23629. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23630. Failed writing message. Aborting connection.
  23631. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23632. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23633. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23634. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23635. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23636. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23637. Failed writing message. Aborting connection.
  23638. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23639. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23640. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23641. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23642. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23643. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23644. Failed writing message. Aborting connection.
  23645. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23646. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23647. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23648. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23649. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23650. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23651. Failed writing message. Aborting connection.
  23652. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23653. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23654. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23655. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23656. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23657. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23658. Failed writing message. Aborting connection.
  23659. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23660. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23661. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23662. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23663. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23664. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23665. Failed writing message. Aborting connection.
  23666. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23667. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23668. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23669. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23670. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23671. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23672. Failed writing message. Aborting connection.
  23673. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23674. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23675. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23676. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23677. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23678. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23679. Failed writing message. Aborting connection.
  23680. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23681. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23682. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23683. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23684. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23685. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23686. Failed writing message. Aborting connection.
  23687. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23688. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23689. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23690. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23691. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23692. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23693. Failed writing message. Aborting connection.
  23694. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23695. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23696. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23697. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23698. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23699. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23700. Failed writing message. Aborting connection.
  23701. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23702. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23703. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23704. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23705. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23706. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23707. Failed writing message. Aborting connection.
  23708. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23709. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23710. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23711. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23712. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23713. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23714. Failed writing message. Aborting connection.
  23715. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23716. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23717. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23718. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23719. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23720. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23721. Failed writing message. Aborting connection.
  23722. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23723. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23724. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23725. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23726. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23727. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23728. Failed writing message. Aborting connection.
  23729. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23730. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23731. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23732. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23733. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23734. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23735. Failed writing message. Aborting connection.
  23736. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23737. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23738. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23739. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23740. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23741. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23742. Failed writing message. Aborting connection.
  23743. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23744. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23745. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23746. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23747. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23748. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23749. Failed writing message. Aborting connection.
  23750. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23751. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23752. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23753. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23754. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23755. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23756. Failed writing message. Aborting connection.
  23757. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23758. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23759. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23760. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23761. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23762. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23763. Failed writing message. Aborting connection.
  23764. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23765. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23766. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23767. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23768. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23769. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23770. Failed writing message. Aborting connection.
  23771. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23772. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23773. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23774. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23775. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23776. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23777. Failed writing message. Aborting connection.
  23778. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23779. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23780. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23781. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23782. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23783. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23784. Failed writing message. Aborting connection.
  23785. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23786. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23787. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23788. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23789. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23790. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23791. Failed writing message. Aborting connection.
  23792. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23793. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23794. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23795. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23796. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23797. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23798. Failed writing message. Aborting connection.
  23799. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23800. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23801. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23802. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23803. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23804. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23805. Failed writing message. Aborting connection.
  23806. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23807. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23808. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23809. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23810. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23811. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23812. Failed writing message. Aborting connection.
  23813. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23814. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23815. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23816. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23817. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23818. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23819. Failed writing message. Aborting connection.
  23820. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23821. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23822. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23823. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23824. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23825. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23826. Failed writing message. Aborting connection.
  23827. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23828. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23829. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23830. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23831. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23832. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23833. Failed writing message. Aborting connection.
  23834. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23835. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23836. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23837. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23838. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23839. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23840. Failed writing message. Aborting connection.
  23841. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23842. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23843. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23844. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23845. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23846. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23847. Failed writing message. Aborting connection.
  23848. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23849. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23850. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23851. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23852. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23853. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23854. Failed writing message. Aborting connection.
  23855. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23856. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23857. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23858. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23859. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23860. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23861. Failed writing message. Aborting connection.
  23862. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23863. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23864. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23865. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23866. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23867. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23868. Failed writing message. Aborting connection.
  23869. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23870. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23871. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23872. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23873. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23874. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23875. Failed writing message. Aborting connection.
  23876. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23877. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23878. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23879. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23880. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23881. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23882. Failed writing message. Aborting connection.
  23883. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23884. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23885. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23886. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23887. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23888. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23889. Failed writing message. Aborting connection.
  23890. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23891. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23892. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23893. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23894. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23895. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23896. Failed writing message. Aborting connection.
  23897. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23898. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23899. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23900. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23901. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23902. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23903. Failed writing message. Aborting connection.
  23904. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23905. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23906. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23907. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23908. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23909. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23910. Failed writing message. Aborting connection.
  23911. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23912. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23913. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23914. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23915. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23916. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23917. Failed writing message. Aborting connection.
  23918. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23919. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23920. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23921. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23922. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23923. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23924. Failed writing message. Aborting connection.
  23925. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23926. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23927. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23928. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23929. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23930. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23931. Failed writing message. Aborting connection.
  23932. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23933. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23934. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23935. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23936. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23937. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23938. Failed writing message. Aborting connection.
  23939. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23940. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23941. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23942. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23943. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23944. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23945. Failed writing message. Aborting connection.
  23946. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23947. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23948. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23949. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23950. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23951. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23952. Failed writing message. Aborting connection.
  23953. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23954. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23955. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23956. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23957. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23958. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23959. Failed writing message. Aborting connection.
  23960. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23961. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23962. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23963. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23964. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23965. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23966. Failed writing message. Aborting connection.
  23967. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23968. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23969. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23970. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23971. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23972. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23973. Failed writing message. Aborting connection.
  23974. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23975. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23976. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23977. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23978. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23979. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23980. Failed writing message. Aborting connection.
  23981. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23982. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23983. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23984. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23985. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23986. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23987. Failed writing message. Aborting connection.
  23988. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23989. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23990. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23991. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23992. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  23993. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  23994. Failed writing message. Aborting connection.
  23995. System.InvalidOperationException: Writing is not allowed after writer was completed.
  23996. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  23997. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23998. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  23999. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24000. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24001. Failed writing message. Aborting connection.
  24002. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24003. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24004. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24005. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24006. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24007. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24008. Failed writing message. Aborting connection.
  24009. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24010. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24011. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24012. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24013. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24014. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24015. Failed writing message. Aborting connection.
  24016. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24017. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24018. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24019. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24020. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24021. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24022. Failed writing message. Aborting connection.
  24023. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24024. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24025. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24026. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24027. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24028. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24029. Failed writing message. Aborting connection.
  24030. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24031. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24032. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24033. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24034. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24035. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24036. Failed writing message. Aborting connection.
  24037. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24038. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24039. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24040. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24041. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24042. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24043. Failed writing message. Aborting connection.
  24044. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24045. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24046. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24047. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24048. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24049. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24050. Failed writing message. Aborting connection.
  24051. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24052. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24053. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24054. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24055. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24056. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24057. Failed writing message. Aborting connection.
  24058. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24059. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24060. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24061. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24062. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24063. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24064. Failed writing message. Aborting connection.
  24065. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24066. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24067. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24068. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24069. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24070. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24071. Failed writing message. Aborting connection.
  24072. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24073. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24074. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24075. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24076. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24077. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24078. Failed writing message. Aborting connection.
  24079. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24080. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24081. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24082. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24083. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24084. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24085. Failed writing message. Aborting connection.
  24086. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24087. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24088. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24089. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24090. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24091. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24092. Failed writing message. Aborting connection.
  24093. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24094. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24095. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24096. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24097. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24098. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24099. Failed writing message. Aborting connection.
  24100. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24101. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24102. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24103. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24104. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24105. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24106. Failed writing message. Aborting connection.
  24107. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24108. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24109. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24110. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24111. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24112. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24113. Failed writing message. Aborting connection.
  24114. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24115. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24116. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24117. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24118. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24119. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24120. Failed writing message. Aborting connection.
  24121. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24122. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24123. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24124. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24125. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24126. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24127. Failed writing message. Aborting connection.
  24128. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24129. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24130. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24131. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24132. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24133. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24134. Failed writing message. Aborting connection.
  24135. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24136. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24137. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24138. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24139. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24140. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24141. Failed writing message. Aborting connection.
  24142. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24143. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24144. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24145. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24146. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24147. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24148. Failed writing message. Aborting connection.
  24149. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24150. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24151. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24152. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24153. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24154. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24155. Failed writing message. Aborting connection.
  24156. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24157. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24158. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24159. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24160. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24161. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24162. Failed writing message. Aborting connection.
  24163. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24164. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24165. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24166. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24167. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24168. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24169. Failed writing message. Aborting connection.
  24170. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24171. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24172. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24173. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24174. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24175. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24176. Failed writing message. Aborting connection.
  24177. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24178. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24179. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24180. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24181. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24182. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24183. Failed writing message. Aborting connection.
  24184. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24185. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24186. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24187. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24188. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24189. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24190. Failed writing message. Aborting connection.
  24191. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24192. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24193. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24194. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24195. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24196. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24197. Failed writing message. Aborting connection.
  24198. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24199. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24200. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24201. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24202. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24203. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24204. Failed writing message. Aborting connection.
  24205. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24206. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24207. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24208. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24209. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24210. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24211. Failed writing message. Aborting connection.
  24212. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24213. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24214. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24215. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24216. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24217. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24218. Failed writing message. Aborting connection.
  24219. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24220. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24221. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24222. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24223. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24224. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24225. Failed writing message. Aborting connection.
  24226. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24227. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24228. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24229. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24230. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24231. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24232. Failed writing message. Aborting connection.
  24233. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24234. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24235. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24236. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24237. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24238. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24239. Failed writing message. Aborting connection.
  24240. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24241. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24242. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24243. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24244. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24245. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24246. Failed writing message. Aborting connection.
  24247. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24248. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24249. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24250. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24251. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24252. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24253. Failed writing message. Aborting connection.
  24254. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24255. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24256. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24257. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24258. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24259. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24260. Failed writing message. Aborting connection.
  24261. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24262. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24263. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24264. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24265. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24266. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24267. Failed writing message. Aborting connection.
  24268. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24269. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24270. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24271. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24272. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24273. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24274. Failed writing message. Aborting connection.
  24275. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24276. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24277. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24278. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24279. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24280. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24281. Failed writing message. Aborting connection.
  24282. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24283. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24284. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24285. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24286. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24287. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24288. Failed writing message. Aborting connection.
  24289. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24290. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24291. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24292. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24293. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24294. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24295. Failed writing message. Aborting connection.
  24296. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24297. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24298. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24299. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24300. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24301. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24302. Failed writing message. Aborting connection.
  24303. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24304. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24305. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24306. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24307. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24308. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24309. Failed writing message. Aborting connection.
  24310. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24311. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24312. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24313. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24314. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24315. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24316. Failed writing message. Aborting connection.
  24317. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24318. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24319. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24320. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24321. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24322. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24323. Failed writing message. Aborting connection.
  24324. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24325. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24326. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24327. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24328. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24329. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24330. Failed writing message. Aborting connection.
  24331. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24332. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24333. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24334. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24335. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24336. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24337. Failed writing message. Aborting connection.
  24338. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24339. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24340. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24341. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24342. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24343. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24344. Failed writing message. Aborting connection.
  24345. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24346. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24347. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24348. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24349. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24350. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24351. Failed writing message. Aborting connection.
  24352. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24353. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24354. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24355. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24356. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24357. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24358. Failed writing message. Aborting connection.
  24359. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24360. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24361. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24362. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24363. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24364. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24365. Failed writing message. Aborting connection.
  24366. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24367. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24368. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24369. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24370. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24371. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24372. Failed writing message. Aborting connection.
  24373. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24374. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24375. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24376. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24377. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24378. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24379. Failed writing message. Aborting connection.
  24380. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24381. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24382. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24383. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24384. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24385. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24386. Failed writing message. Aborting connection.
  24387. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24388. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24389. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24390. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24391. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24392. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24393. Failed writing message. Aborting connection.
  24394. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24395. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24396. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24397. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24398. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24399. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24400. Failed writing message. Aborting connection.
  24401. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24402. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24403. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24404. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24405. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24406. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24407. Failed writing message. Aborting connection.
  24408. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24409. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24410. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24411. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24412. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24413. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24414. Failed writing message. Aborting connection.
  24415. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24416. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24417. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24418. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24419. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24420. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24421. Failed writing message. Aborting connection.
  24422. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24423. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24424. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24425. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24426. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24427. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24428. Failed writing message. Aborting connection.
  24429. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24430. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24431. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24432. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24433. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24434. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24435. Failed writing message. Aborting connection.
  24436. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24437. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24438. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24439. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24440. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24441. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24442. Failed writing message. Aborting connection.
  24443. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24444. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24445. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24446. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24447. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24448. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24449. Failed writing message. Aborting connection.
  24450. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24451. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24452. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24453. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24454. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24455. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24456. Failed writing message. Aborting connection.
  24457. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24458. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24459. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24460. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24461. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24462. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24463. Failed writing message. Aborting connection.
  24464. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24465. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24466. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24467. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24468. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24469. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24470. Failed writing message. Aborting connection.
  24471. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24472. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24473. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24474. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24475. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24476. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24477. Failed writing message. Aborting connection.
  24478. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24479. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24480. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24481. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24482. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24483. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24484. Failed writing message. Aborting connection.
  24485. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24486. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24487. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24488. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24489. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24490. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24491. Failed writing message. Aborting connection.
  24492. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24493. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24494. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24495. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24496. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24497. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24498. Failed writing message. Aborting connection.
  24499. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24500. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24501. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24502. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24503. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24504. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24505. Failed writing message. Aborting connection.
  24506. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24507. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24508. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24509. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24510. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24511. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24512. Failed writing message. Aborting connection.
  24513. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24514. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24515. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24516. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24517. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24518. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24519. Failed writing message. Aborting connection.
  24520. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24521. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24522. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24523. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24524. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24525. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24526. Failed writing message. Aborting connection.
  24527. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24528. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24529. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24530. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24531. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24532. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24533. Failed writing message. Aborting connection.
  24534. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24535. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24536. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24537. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24538. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24539. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24540. Failed writing message. Aborting connection.
  24541. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24542. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24543. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24544. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24545. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24546. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24547. Failed writing message. Aborting connection.
  24548. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24549. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24550. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24551. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24552. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24553. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24554. Failed writing message. Aborting connection.
  24555. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24556. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24557. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24558. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24559. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24560. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24561. Failed writing message. Aborting connection.
  24562. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24563. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24564. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24565. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24566. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24567. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24568. Failed writing message. Aborting connection.
  24569. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24570. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24571. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24572. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24573. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24574. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24575. Failed writing message. Aborting connection.
  24576. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24577. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24578. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24579. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24580. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24581. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24582. Failed writing message. Aborting connection.
  24583. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24584. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24585. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24586. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24587. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24588. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24589. Failed writing message. Aborting connection.
  24590. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24591. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24592. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24593. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24594. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24595. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24596. Failed writing message. Aborting connection.
  24597. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24598. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24599. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24600. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24601. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24602. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24603. Failed writing message. Aborting connection.
  24604. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24605. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24606. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24607. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24608. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24609. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24610. Failed writing message. Aborting connection.
  24611. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24612. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24613. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24614. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24615. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24616. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24617. Failed writing message. Aborting connection.
  24618. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24619. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24620. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24621. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24622. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24623. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24624. Failed writing message. Aborting connection.
  24625. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24626. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24627. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24628. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24629. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24630. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24631. Failed writing message. Aborting connection.
  24632. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24633. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24634. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24635. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24636. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24637. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24638. Failed writing message. Aborting connection.
  24639. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24640. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24641. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24642. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24643. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24644. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24645. Failed writing message. Aborting connection.
  24646. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24647. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24648. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24649. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24650. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24651. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24652. Failed writing message. Aborting connection.
  24653. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24654. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24655. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24656. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24657. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24658. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24659. Failed writing message. Aborting connection.
  24660. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24661. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24662. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24663. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24664. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24665. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24666. Failed writing message. Aborting connection.
  24667. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24668. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24669. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24670. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24671. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24672. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24673. Failed writing message. Aborting connection.
  24674. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24675. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24676. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24677. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24678. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24679. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24680. Failed writing message. Aborting connection.
  24681. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24682. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24683. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24684. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24685. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24686. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24687. Failed writing message. Aborting connection.
  24688. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24689. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24690. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24691. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24692. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24693. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24694. Failed writing message. Aborting connection.
  24695. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24696. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24697. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24698. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24699. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24700. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24701. Failed writing message. Aborting connection.
  24702. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24703. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24704. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24705. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24706. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24707. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24708. Failed writing message. Aborting connection.
  24709. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24710. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24711. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24712. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24713. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24714. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24715. Failed writing message. Aborting connection.
  24716. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24717. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24718. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24719. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24720. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24721. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24722. Failed writing message. Aborting connection.
  24723. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24724. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24725. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24726. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24727. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24728. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24729. Failed writing message. Aborting connection.
  24730. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24731. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24732. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24733. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24734. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24735. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24736. Failed writing message. Aborting connection.
  24737. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24738. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24739. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24740. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24741. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24742. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24743. Failed writing message. Aborting connection.
  24744. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24745. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24746. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24747. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24748. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24749. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24750. Failed writing message. Aborting connection.
  24751. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24752. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24753. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24754. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24755. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24756. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24757. Failed writing message. Aborting connection.
  24758. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24759. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24760. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24761. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24762. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24763. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24764. Failed writing message. Aborting connection.
  24765. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24766. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24767. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24768. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24769. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24770. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24771. Failed writing message. Aborting connection.
  24772. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24773. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24774. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24775. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24776. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24777. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24778. Failed writing message. Aborting connection.
  24779. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24780. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24781. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24782. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24783. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24784. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24785. Failed writing message. Aborting connection.
  24786. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24787. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24788. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24789. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24790. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24791. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24792. Failed writing message. Aborting connection.
  24793. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24794. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24795. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24796. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24797. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24798. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24799. Failed writing message. Aborting connection.
  24800. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24801. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24802. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24803. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24804. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24805. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24806. Failed writing message. Aborting connection.
  24807. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24808. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24809. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24810. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24811. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24812. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24813. Failed writing message. Aborting connection.
  24814. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24815. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24816. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24817. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24818. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24819. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24820. Failed writing message. Aborting connection.
  24821. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24822. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24823. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24824. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24825. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24826. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24827. Failed writing message. Aborting connection.
  24828. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24829. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24830. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24831. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24832. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24833. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24834. Failed writing message. Aborting connection.
  24835. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24836. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24837. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24838. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24839. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24840. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24841. Failed writing message. Aborting connection.
  24842. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24843. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24844. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24845. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24846. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24847. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24848. Failed writing message. Aborting connection.
  24849. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24850. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24851. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24852. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24853. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24854. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24855. Failed writing message. Aborting connection.
  24856. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24857. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24858. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24859. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24860. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24861. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24862. Failed writing message. Aborting connection.
  24863. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24864. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24865. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24866. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24867. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24868. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24869. Failed writing message. Aborting connection.
  24870. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24871. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24872. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24873. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24874. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24875. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24876. Failed writing message. Aborting connection.
  24877. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24878. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24879. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24880. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24881. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24882. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24883. Failed writing message. Aborting connection.
  24884. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24885. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24886. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24887. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24888. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24889. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24890. Failed writing message. Aborting connection.
  24891. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24892. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24893. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24894. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24895. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24896. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24897. Failed writing message. Aborting connection.
  24898. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24899. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24900. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24901. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24902. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24903. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24904. Failed writing message. Aborting connection.
  24905. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24906. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24907. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24908. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24909. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24910. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24911. Failed writing message. Aborting connection.
  24912. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24913. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24914. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24915. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24916. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24917. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24918. Failed writing message. Aborting connection.
  24919. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24920. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24921. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24922. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24923. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24924. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24925. Failed writing message. Aborting connection.
  24926. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24927. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24928. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24929. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24930. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24931. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24932. Failed writing message. Aborting connection.
  24933. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24934. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24935. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24936. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24937. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24938. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24939. Failed writing message. Aborting connection.
  24940. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24941. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24942. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24943. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24944. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24945. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24946. Failed writing message. Aborting connection.
  24947. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24948. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24949. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24950. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24951. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24952. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24953. Failed writing message. Aborting connection.
  24954. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24955. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24956. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24957. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24958. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24959. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24960. Failed writing message. Aborting connection.
  24961. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24962. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24963. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24964. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24965. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24966. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24967. Failed writing message. Aborting connection.
  24968. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24969. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24970. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24971. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24972. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24973. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24974. Failed writing message. Aborting connection.
  24975. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24976. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24977. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24978. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24979. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24980. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24981. Failed writing message. Aborting connection.
  24982. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24983. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24984. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24985. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24986. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24987. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24988. Failed writing message. Aborting connection.
  24989. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24990. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24991. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24992. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24993. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  24994. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  24995. Failed writing message. Aborting connection.
  24996. System.InvalidOperationException: Writing is not allowed after writer was completed.
  24997. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  24998. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  24999. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25000. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25001. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25002. Failed writing message. Aborting connection.
  25003. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25004. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25005. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25006. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25007. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25008. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25009. Failed writing message. Aborting connection.
  25010. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25011. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25012. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25013. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25014. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25015. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25016. Failed writing message. Aborting connection.
  25017. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25018. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25019. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25020. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25021. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25022. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25023. Failed writing message. Aborting connection.
  25024. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25025. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25026. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25027. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25028. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25029. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25030. Failed writing message. Aborting connection.
  25031. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25032. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25033. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25034. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25035. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25036. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25037. Failed writing message. Aborting connection.
  25038. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25039. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25040. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25041. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25042. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25043. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25044. Failed writing message. Aborting connection.
  25045. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25046. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25047. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25048. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25049. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25050. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25051. Failed writing message. Aborting connection.
  25052. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25053. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25054. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25055. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25056. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25057. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25058. Failed writing message. Aborting connection.
  25059. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25060. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25061. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25062. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25063. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25064. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25065. Failed writing message. Aborting connection.
  25066. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25067. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25068. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25069. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25070. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25071. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25072. Failed writing message. Aborting connection.
  25073. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25074. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25075. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25076. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25077. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25078. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25079. Failed writing message. Aborting connection.
  25080. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25081. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25082. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25083. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25084. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25085. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25086. Failed writing message. Aborting connection.
  25087. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25088. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25089. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25090. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25091. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25092. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25093. Failed writing message. Aborting connection.
  25094. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25095. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25096. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25097. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25098. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25099. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25100. Failed writing message. Aborting connection.
  25101. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25102. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25103. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25104. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25105. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25106. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25107. Failed writing message. Aborting connection.
  25108. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25109. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25110. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25111. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25112. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25113. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25114. Failed writing message. Aborting connection.
  25115. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25116. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25117. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25118. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25119. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25120. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25121. Failed writing message. Aborting connection.
  25122. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25123. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25124. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25125. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25126. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25127. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25128. Failed writing message. Aborting connection.
  25129. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25130. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25131. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25132. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25133. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25134. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25135. Failed writing message. Aborting connection.
  25136. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25137. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25138. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25139. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25140. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25141. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25142. Failed writing message. Aborting connection.
  25143. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25144. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25145. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25146. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25147. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25148. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25149. Failed writing message. Aborting connection.
  25150. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25151. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25152. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25153. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25154. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25155. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25156. Failed writing message. Aborting connection.
  25157. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25158. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25159. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25160. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25161. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25162. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25163. Failed writing message. Aborting connection.
  25164. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25165. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25166. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25167. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25168. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25169. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25170. Failed writing message. Aborting connection.
  25171. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25172. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25173. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25174. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25175. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25176. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25177. Failed writing message. Aborting connection.
  25178. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25179. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25180. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25181. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25182. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25183. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25184. Failed writing message. Aborting connection.
  25185. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25186. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25187. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25188. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25189. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25190. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25191. Failed writing message. Aborting connection.
  25192. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25193. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25194. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25195. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25196. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25197. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25198. Failed writing message. Aborting connection.
  25199. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25200. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25201. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25202. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25203. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25204. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25205. Failed writing message. Aborting connection.
  25206. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25207. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25208. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25209. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25210. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25211. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25212. Failed writing message. Aborting connection.
  25213. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25214. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25215. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25216. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25217. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25218. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25219. Failed writing message. Aborting connection.
  25220. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25221. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25222. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25223. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25224. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25225. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25226. Failed writing message. Aborting connection.
  25227. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25228. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25229. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25230. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25231. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25232. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25233. Failed writing message. Aborting connection.
  25234. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25235. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25236. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25237. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25238. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25239. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25240. Failed writing message. Aborting connection.
  25241. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25242. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25243. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25244. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25245. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25246. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25247. Failed writing message. Aborting connection.
  25248. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25249. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25250. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25251. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25252. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25253. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25254. Failed writing message. Aborting connection.
  25255. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25256. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25257. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25258. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25259. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25260. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25261. Failed writing message. Aborting connection.
  25262. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25263. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25264. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25265. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25266. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25267. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25268. Failed writing message. Aborting connection.
  25269. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25270. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25271. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25272. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25273. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25274. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25275. Failed writing message. Aborting connection.
  25276. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25277. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25278. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25279. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25280. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25281. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25282. Failed writing message. Aborting connection.
  25283. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25284. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25285. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25286. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25287. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25288. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25289. Failed writing message. Aborting connection.
  25290. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25291. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25292. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25293. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25294. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25295. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25296. Failed writing message. Aborting connection.
  25297. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25298. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25299. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25300. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25301. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25302. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25303. Failed writing message. Aborting connection.
  25304. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25305. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25306. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25307. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25308. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25309. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25310. Failed writing message. Aborting connection.
  25311. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25312. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25313. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25314. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25315. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25316. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25317. Failed writing message. Aborting connection.
  25318. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25319. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25320. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25321. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25322. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25323. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25324. Failed writing message. Aborting connection.
  25325. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25326. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25327. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25328. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25329. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25330. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25331. Failed writing message. Aborting connection.
  25332. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25333. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25334. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25335. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25336. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25337. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25338. Failed writing message. Aborting connection.
  25339. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25340. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25341. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25342. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25343. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25344. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25345. Failed writing message. Aborting connection.
  25346. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25347. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25348. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25349. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25350. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25351. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25352. Failed writing message. Aborting connection.
  25353. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25354. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25355. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25356. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25357. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25358. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25359. Failed writing message. Aborting connection.
  25360. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25361. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25362. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25363. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25364. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25365. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25366. Failed writing message. Aborting connection.
  25367. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25368. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25369. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25370. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25371. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25372. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25373. Failed writing message. Aborting connection.
  25374. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25375. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25376. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25377. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25378. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25379. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25380. Failed writing message. Aborting connection.
  25381. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25382. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25383. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25384. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25385. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25386. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25387. Failed writing message. Aborting connection.
  25388. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25389. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25390. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25391. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25392. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25393. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25394. Failed writing message. Aborting connection.
  25395. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25396. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25397. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25398. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25399. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25400. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25401. Failed writing message. Aborting connection.
  25402. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25403. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25404. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25405. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25406. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25407. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25408. Failed writing message. Aborting connection.
  25409. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25410. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25411. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25412. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25413. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25414. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25415. Failed writing message. Aborting connection.
  25416. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25417. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25418. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25419. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25420. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25421. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25422. Failed writing message. Aborting connection.
  25423. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25424. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25425. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25426. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25427. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25428. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25429. Failed writing message. Aborting connection.
  25430. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25431. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25432. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25433. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25434. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25435. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25436. Failed writing message. Aborting connection.
  25437. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25438. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25439. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25440. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25441. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25442. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25443. Failed writing message. Aborting connection.
  25444. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25445. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25446. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25447. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25448. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25449. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25450. Failed writing message. Aborting connection.
  25451. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25452. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25453. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25454. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25455. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25456. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25457. Failed writing message. Aborting connection.
  25458. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25459. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25460. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25461. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25462. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25463. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25464. Failed writing message. Aborting connection.
  25465. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25466. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25467. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25468. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25469. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25470. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25471. Failed writing message. Aborting connection.
  25472. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25473. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25474. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25475. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25476. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25477. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25478. Failed writing message. Aborting connection.
  25479. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25480. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25481. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25482. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25483. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25484. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25485. Failed writing message. Aborting connection.
  25486. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25487. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25488. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25489. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25490. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25491. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25492. Failed writing message. Aborting connection.
  25493. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25494. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25495. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25496. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25497. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25498. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25499. Failed writing message. Aborting connection.
  25500. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25501. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25502. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25503. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25504. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25505. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25506. Failed writing message. Aborting connection.
  25507. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25508. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25509. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25510. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25511. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25512. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25513. Failed writing message. Aborting connection.
  25514. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25515. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25516. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25517. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25518. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25519. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25520. Failed writing message. Aborting connection.
  25521. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25522. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25523. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25524. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25525. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25526. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25527. Failed writing message. Aborting connection.
  25528. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25529. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25530. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25531. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25532. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25533. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25534. Failed writing message. Aborting connection.
  25535. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25536. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25537. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25538. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25539. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25540. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25541. Failed writing message. Aborting connection.
  25542. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25543. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25544. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25545. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25546. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25547. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25548. Failed writing message. Aborting connection.
  25549. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25550. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25551. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25552. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25553. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25554. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25555. Failed writing message. Aborting connection.
  25556. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25557. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25558. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25559. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25560. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25561. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25562. Failed writing message. Aborting connection.
  25563. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25564. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25565. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25566. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25567. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25568. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25569. Failed writing message. Aborting connection.
  25570. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25571. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25572. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25573. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25574. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25575. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25576. Failed writing message. Aborting connection.
  25577. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25578. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25579. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25580. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25581. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25582. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25583. Failed writing message. Aborting connection.
  25584. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25585. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25586. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25587. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25588. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25589. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25590. Failed writing message. Aborting connection.
  25591. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25592. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25593. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25594. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25595. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25596. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25597. Failed writing message. Aborting connection.
  25598. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25599. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25600. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25601. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25602. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25603. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25604. Failed writing message. Aborting connection.
  25605. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25606. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25607. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25608. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25609. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25610. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25611. Failed writing message. Aborting connection.
  25612. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25613. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25614. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25615. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25616. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25617. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25618. Failed writing message. Aborting connection.
  25619. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25620. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25621. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25622. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25623. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25624. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25625. Failed writing message. Aborting connection.
  25626. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25627. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25628. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25629. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25630. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25631. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25632. Failed writing message. Aborting connection.
  25633. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25634. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25635. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25636. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25637. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25638. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25639. Failed writing message. Aborting connection.
  25640. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25641. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25642. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25643. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25644. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25645. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25646. Failed writing message. Aborting connection.
  25647. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25648. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25649. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25650. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25651. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25652. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25653. Failed writing message. Aborting connection.
  25654. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25655. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25656. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25657. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25658. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25659. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25660. Failed writing message. Aborting connection.
  25661. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25662. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25663. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25664. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25665. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25666. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25667. Failed writing message. Aborting connection.
  25668. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25669. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25670. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25671. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25672. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25673. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25674. Failed writing message. Aborting connection.
  25675. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25676. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25677. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25678. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25679. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25680. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25681. Failed writing message. Aborting connection.
  25682. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25683. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25684. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25685. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25686. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25687. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25688. Failed writing message. Aborting connection.
  25689. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25690. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25691. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25692. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25693. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25694. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25695. Failed writing message. Aborting connection.
  25696. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25697. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25698. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25699. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25700. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25701. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25702. Failed writing message. Aborting connection.
  25703. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25704. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25705. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25706. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25707. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25708. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25709. Failed writing message. Aborting connection.
  25710. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25711. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25712. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25713. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25714. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25715. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25716. Failed writing message. Aborting connection.
  25717. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25718. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25719. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25720. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25721. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25722. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25723. Failed writing message. Aborting connection.
  25724. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25725. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25726. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25727. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25728. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25729. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25730. Failed writing message. Aborting connection.
  25731. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25732. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25733. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25734. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25735. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25736. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25737. Failed writing message. Aborting connection.
  25738. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25739. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25740. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25741. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25742. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25743. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25744. Failed writing message. Aborting connection.
  25745. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25746. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25747. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25748. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25749. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25750. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25751. Failed writing message. Aborting connection.
  25752. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25753. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25754. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25755. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25756. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25757. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25758. Failed writing message. Aborting connection.
  25759. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25760. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25761. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25762. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25763. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25764. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25765. Failed writing message. Aborting connection.
  25766. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25767. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25768. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25769. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25770. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25771. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25772. Failed writing message. Aborting connection.
  25773. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25774. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25775. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25776. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25777. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25778. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25779. Failed writing message. Aborting connection.
  25780. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25781. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25782. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25783. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25784. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25785. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25786. Failed writing message. Aborting connection.
  25787. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25788. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25789. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25790. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25791. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25792. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25793. Failed writing message. Aborting connection.
  25794. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25795. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25796. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25797. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25798. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25799. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25800. Failed writing message. Aborting connection.
  25801. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25802. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25803. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25804. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25805. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25806. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25807. Failed writing message. Aborting connection.
  25808. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25809. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25810. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25811. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25812. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25813. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25814. Failed writing message. Aborting connection.
  25815. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25816. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25817. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25818. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25819. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25820. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25821. Failed writing message. Aborting connection.
  25822. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25823. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25824. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25825. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25826. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25827. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25828. Failed writing message. Aborting connection.
  25829. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25830. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25831. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25832. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25833. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25834. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25835. Failed writing message. Aborting connection.
  25836. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25837. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25838. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25839. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25840. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25841. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25842. Failed writing message. Aborting connection.
  25843. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25844. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25845. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25846. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25847. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25848. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25849. Failed writing message. Aborting connection.
  25850. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25851. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25852. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25853. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25854. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25855. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25856. Failed writing message. Aborting connection.
  25857. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25858. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25859. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25860. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25861. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25862. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25863. Failed writing message. Aborting connection.
  25864. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25865. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25866. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25867. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25868. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25869. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25870. Failed writing message. Aborting connection.
  25871. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25872. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25873. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25874. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25875. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25876. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25877. Failed writing message. Aborting connection.
  25878. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25879. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25880. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25881. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25882. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25883. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25884. Failed writing message. Aborting connection.
  25885. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25886. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25887. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25888. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25889. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25890. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25891. Failed writing message. Aborting connection.
  25892. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25893. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25894. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25895. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25896. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25897. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25898. Failed writing message. Aborting connection.
  25899. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25900. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25901. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25902. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25903. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25904. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25905. Failed writing message. Aborting connection.
  25906. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25907. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25908. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25909. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25910. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25911. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25912. Failed writing message. Aborting connection.
  25913. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25914. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25915. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25916. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25917. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25918. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25919. Failed writing message. Aborting connection.
  25920. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25921. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25922. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25923. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25924. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25925. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25926. Failed writing message. Aborting connection.
  25927. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25928. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25929. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25930. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25931. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25932. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25933. Failed writing message. Aborting connection.
  25934. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25935. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25936. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25937. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25938. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25939. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25940. Failed writing message. Aborting connection.
  25941. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25942. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25943. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25944. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25945. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25946. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25947. Failed writing message. Aborting connection.
  25948. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25949. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25950. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25951. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25952. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25953. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25954. Failed writing message. Aborting connection.
  25955. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25956. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25957. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25958. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25959. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25960. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25961. Failed writing message. Aborting connection.
  25962. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25963. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25964. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25965. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25966. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25967. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25968. Failed writing message. Aborting connection.
  25969. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25970. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25971. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25972. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25973. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25974. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25975. Failed writing message. Aborting connection.
  25976. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25977. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25978. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25979. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25980. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25981. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25982. Failed writing message. Aborting connection.
  25983. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25984. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25985. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25986. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25987. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25988. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25989. Failed writing message. Aborting connection.
  25990. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25991. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25992. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25993. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  25994. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  25995. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  25996. Failed writing message. Aborting connection.
  25997. System.InvalidOperationException: Writing is not allowed after writer was completed.
  25998. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  25999. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26000. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26001. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26002. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26003. Failed writing message. Aborting connection.
  26004. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26005. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26006. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26007. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26008. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26009. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26010. Failed writing message. Aborting connection.
  26011. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26012. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26013. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26014. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26015. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26016. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26017. Failed writing message. Aborting connection.
  26018. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26019. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26020. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26021. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26022. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26023. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26024. Failed writing message. Aborting connection.
  26025. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26026. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26027. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26028. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26029. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26030. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26031. Failed writing message. Aborting connection.
  26032. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26033. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26034. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26035. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26036. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26037. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26038. Failed writing message. Aborting connection.
  26039. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26040. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26041. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26042. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26043. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26044. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26045. Failed writing message. Aborting connection.
  26046. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26047. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26048. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26049. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26050. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26051. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26052. Failed writing message. Aborting connection.
  26053. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26054. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26055. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26056. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26057. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26058. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26059. Failed writing message. Aborting connection.
  26060. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26061. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26062. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26063. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26064. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26065. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26066. Failed writing message. Aborting connection.
  26067. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26068. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26069. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26070. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26071. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26072. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26073. Failed writing message. Aborting connection.
  26074. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26075. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26076. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26077. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26078. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26079. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26080. Failed writing message. Aborting connection.
  26081. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26082. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26083. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26084. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26085. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26086. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26087. Failed writing message. Aborting connection.
  26088. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26089. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26090. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26091. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26092. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26093. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26094. Failed writing message. Aborting connection.
  26095. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26096. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26097. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26098. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26099. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26100. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26101. Failed writing message. Aborting connection.
  26102. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26103. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26104. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26105. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26106. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26107. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26108. Failed writing message. Aborting connection.
  26109. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26110. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26111. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26112. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26113. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26114. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26115. Failed writing message. Aborting connection.
  26116. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26117. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26118. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26119. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26120. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26121. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26122. Failed writing message. Aborting connection.
  26123. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26124. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26125. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26126. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26127. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26128. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26129. Failed writing message. Aborting connection.
  26130. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26131. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26132. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26133. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26134. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26135. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26136. Failed writing message. Aborting connection.
  26137. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26138. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26139. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26140. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26141. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26142. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26143. Failed writing message. Aborting connection.
  26144. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26145. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26146. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26147. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26148. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26149. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26150. Failed writing message. Aborting connection.
  26151. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26152. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26153. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26154. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26155. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26156. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26157. Failed writing message. Aborting connection.
  26158. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26159. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26160. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26161. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26162. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26163. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26164. Failed writing message. Aborting connection.
  26165. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26166. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26167. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26168. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26169. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26170. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26171. Failed writing message. Aborting connection.
  26172. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26173. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26174. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26175. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26176. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26177. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26178. Failed writing message. Aborting connection.
  26179. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26180. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26181. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26182. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26183. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26184. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26185. Failed writing message. Aborting connection.
  26186. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26187. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26188. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26189. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26190. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26191. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26192. Failed writing message. Aborting connection.
  26193. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26194. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26195. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26196. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26197. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26198. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26199. Failed writing message. Aborting connection.
  26200. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26201. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26202. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26203. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26204. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26205. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26206. Failed writing message. Aborting connection.
  26207. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26208. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26209. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26210. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26211. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26212. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26213. Failed writing message. Aborting connection.
  26214. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26215. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26216. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26217. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26218. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26219. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26220. Failed writing message. Aborting connection.
  26221. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26222. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26223. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26224. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26225. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26226. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26227. Failed writing message. Aborting connection.
  26228. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26229. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26230. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26231. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26232. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26233. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26234. Failed writing message. Aborting connection.
  26235. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26236. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26237. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26238. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26239. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26240. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26241. Failed writing message. Aborting connection.
  26242. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26243. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26244. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26245. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26246. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26247. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26248. Failed writing message. Aborting connection.
  26249. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26250. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26251. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26252. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26253. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26254. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26255. Failed writing message. Aborting connection.
  26256. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26257. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26258. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26259. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26260. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26261. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26262. Failed writing message. Aborting connection.
  26263. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26264. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26265. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26266. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26267. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26268. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26269. Failed writing message. Aborting connection.
  26270. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26271. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26272. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26273. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26274. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26275. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26276. Failed writing message. Aborting connection.
  26277. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26278. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26279. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26280. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26281. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26282. [00:14:55] Current: 53115, peak: 91541, connected: 0, disconnected: 28264, rate: -28264/s
  26283. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26284. Heartbeat took longer than "00:00:01" at "06/01/2019 00:41:41 +00:00".
  26285. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26286. Heartbeat took longer than "00:00:01" at "06/01/2019 00:41:42 +00:00".
  26287. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26288. Heartbeat took longer than "00:00:01" at "06/01/2019 00:41:42 +00:00".
  26289. [00:14:56] Current: 47224, peak: 91541, connected: 0, disconnected: 5891, rate: -5891/s
  26290. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26291. Heartbeat took longer than "00:00:01" at "06/01/2019 00:41:42 +00:00".
  26292. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26293. Failed writing message. Aborting connection.
  26294. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26295. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26296. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26297. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26298. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26299. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26300. Failed writing message. Aborting connection.
  26301. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26302. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26303. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26304. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26305. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26306. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26307. Failed writing message. Aborting connection.
  26308. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26309. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26310. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26311. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26312. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26313. [00:15:00] Current: 36637, peak: 91541, connected: 0, disconnected: 10587, rate: -10587/s
  26314. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26315. Heartbeat took longer than "00:00:01" at "06/01/2019 00:41:46 +00:00".
  26316. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26317. Failed writing message. Aborting connection.
  26318. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26319. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26320. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26321. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26322. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26323. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26324. Failed writing message. Aborting connection.
  26325. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26326. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26327. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26328. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26329. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26330. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26331. Failed writing message. Aborting connection.
  26332. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26333. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26334. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26335. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26336. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26337. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26338. Failed writing message. Aborting connection.
  26339. System.InvalidOperationException: Writing is not allowed after writer was completed.
  26340. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  26341. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26342. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  26343. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  26344. [00:15:01] Current: 32630, peak: 91541, connected: 0, disconnected: 4007, rate: -4007/s
  26345. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26346. Heartbeat took longer than "00:00:01" at "06/01/2019 00:41:47 +00:00".
  26347. [00:15:02] Current: 32621, peak: 91541, connected: 0, disconnected: 9, rate: -9/s
  26348. [00:15:03] Current: 32816, peak: 91541, connected: 195, disconnected: 0, rate: 195/s
  26349. [00:15:04] Current: 33268, peak: 91541, connected: 452, disconnected: 0, rate: 452/s
  26350. [00:15:05] Current: 33768, peak: 91541, connected: 500, disconnected: 0, rate: 500/s
  26351. [00:15:06] Current: 33883, peak: 91541, connected: 115, disconnected: 0, rate: 115/s
  26352. [00:15:07] Current: 34153, peak: 91541, connected: 270, disconnected: 0, rate: 270/s
  26353. [00:15:08] Current: 34360, peak: 91541, connected: 207, disconnected: 0, rate: 207/s
  26354. [00:15:09] Current: 34503, peak: 91541, connected: 143, disconnected: 0, rate: 143/s
  26355. [00:15:11] Current: 34862, peak: 91541, connected: 359, disconnected: 0, rate: 359/s
  26356. [00:15:12] Current: 35016, peak: 91541, connected: 154, disconnected: 0, rate: 154/s
  26357. [00:15:13] Current: 35402, peak: 91541, connected: 386, disconnected: 0, rate: 386/s
  26358. [00:15:14] Current: 35728, peak: 91541, connected: 326, disconnected: 0, rate: 326/s
  26359. [00:15:15] Current: 36187, peak: 91541, connected: 459, disconnected: 0, rate: 459/s
  26360. [00:15:17] Current: 36684, peak: 91541, connected: 497, disconnected: 0, rate: 497/s
  26361. [00:15:18] Current: 37172, peak: 91541, connected: 488, disconnected: 0, rate: 488/s
  26362. [00:15:19] Current: 37675, peak: 91541, connected: 503, disconnected: 0, rate: 503/s
  26363. [00:15:20] Current: 38157, peak: 91541, connected: 482, disconnected: 0, rate: 482/s
  26364. [00:15:21] Current: 38613, peak: 91541, connected: 456, disconnected: 0, rate: 456/s
  26365. [00:15:22] Current: 39113, peak: 91541, connected: 500, disconnected: 0, rate: 500/s
  26366. [00:15:23] Current: 39415, peak: 91541, connected: 302, disconnected: 0, rate: 302/s
  26367. [00:15:24] Current: 39771, peak: 91541, connected: 356, disconnected: 0, rate: 356/s
  26368. [00:15:25] Current: 40005, peak: 91541, connected: 234, disconnected: 0, rate: 234/s
  26369. [00:15:26] Current: 40088, peak: 91541, connected: 83, disconnected: 0, rate: 83/s
  26370. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26371. Heartbeat took longer than "00:00:01" at "06/01/2019 00:42:12 +00:00".
  26372. [00:15:27] Current: 40546, peak: 91541, connected: 458, disconnected: 0, rate: 458/s
  26373. [00:15:28] Current: 40972, peak: 91541, connected: 426, disconnected: 0, rate: 426/s
  26374. [00:15:29] Current: 41379, peak: 91541, connected: 407, disconnected: 0, rate: 407/s
  26375. [00:15:30] Current: 41848, peak: 91541, connected: 469, disconnected: 0, rate: 469/s
  26376. [00:15:31] Current: 42327, peak: 91541, connected: 479, disconnected: 0, rate: 479/s
  26377. [00:15:32] Current: 42815, peak: 91541, connected: 488, disconnected: 0, rate: 488/s
  26378. [00:15:33] Current: 43299, peak: 91541, connected: 484, disconnected: 0, rate: 484/s
  26379. [00:15:34] Current: 43786, peak: 91541, connected: 487, disconnected: 0, rate: 487/s
  26380. [00:15:35] Current: 44256, peak: 91541, connected: 470, disconnected: 0, rate: 470/s
  26381. [00:15:36] Current: 44423, peak: 91541, connected: 167, disconnected: 0, rate: 167/s
  26382. [00:15:37] Current: 44853, peak: 91541, connected: 430, disconnected: 0, rate: 430/s
  26383. [00:15:38] Current: 45336, peak: 91541, connected: 483, disconnected: 0, rate: 483/s
  26384. [00:15:39] Current: 45570, peak: 91541, connected: 234, disconnected: 0, rate: 234/s
  26385. [00:15:40] Current: 46045, peak: 91541, connected: 475, disconnected: 0, rate: 475/s
  26386. [00:15:41] Current: 46249, peak: 91541, connected: 204, disconnected: 0, rate: 204/s
  26387. [00:15:42] Current: 46716, peak: 91541, connected: 467, disconnected: 0, rate: 467/s
  26388. [00:15:43] Current: 47071, peak: 91541, connected: 355, disconnected: 0, rate: 355/s
  26389. [00:15:44] Current: 47456, peak: 91541, connected: 385, disconnected: 0, rate: 385/s
  26390. [00:15:45] Current: 47922, peak: 91541, connected: 466, disconnected: 0, rate: 466/s
  26391. [00:15:46] Current: 48408, peak: 91541, connected: 486, disconnected: 0, rate: 486/s
  26392. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26393. Heartbeat took longer than "00:00:01" at "06/01/2019 00:42:33 +00:00".
  26394. [00:15:47] Current: 48458, peak: 91541, connected: 50, disconnected: 0, rate: 50/s
  26395. [00:15:48] Current: 48809, peak: 91541, connected: 351, disconnected: 0, rate: 351/s
  26396. [00:15:49] Current: 49281, peak: 91541, connected: 472, disconnected: 0, rate: 472/s
  26397. [00:15:50] Current: 49709, peak: 91541, connected: 428, disconnected: 0, rate: 428/s
  26398. [00:15:51] Current: 50175, peak: 91541, connected: 466, disconnected: 0, rate: 466/s
  26399. [00:15:53] Current: 50407, peak: 91541, connected: 232, disconnected: 0, rate: 232/s
  26400. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26401. Heartbeat took longer than "00:00:01" at "06/01/2019 00:42:39 +00:00".
  26402. [00:15:54] Current: 50480, peak: 91541, connected: 73, disconnected: 0, rate: 73/s
  26403. [00:15:55] Current: 50806, peak: 91541, connected: 326, disconnected: 0, rate: 326/s
  26404. [00:15:57] Current: 50978, peak: 91541, connected: 172, disconnected: 0, rate: 172/s
  26405. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26406. Heartbeat took longer than "00:00:01" at "06/01/2019 00:42:43 +00:00".
  26407. [00:15:58] Current: 51248, peak: 91541, connected: 270, disconnected: 0, rate: 270/s
  26408. [00:15:59] Current: 51612, peak: 91541, connected: 364, disconnected: 0, rate: 364/s
  26409. [00:16:00] Current: 52073, peak: 91541, connected: 461, disconnected: 0, rate: 461/s
  26410. [00:16:01] Current: 52548, peak: 91541, connected: 475, disconnected: 0, rate: 475/s
  26411. [00:16:02] Current: 53050, peak: 91541, connected: 502, disconnected: 0, rate: 502/s
  26412. [00:16:03] Current: 53485, peak: 91541, connected: 435, disconnected: 0, rate: 435/s
  26413. [00:16:04] Current: 53953, peak: 91541, connected: 468, disconnected: 0, rate: 468/s
  26414. [00:16:05] Current: 54294, peak: 91541, connected: 341, disconnected: 0, rate: 341/s
  26415. [00:16:07] Current: 54564, peak: 91541, connected: 270, disconnected: 0, rate: 270/s
  26416. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26417. Heartbeat took longer than "00:00:01" at "06/01/2019 00:42:53 +00:00".
  26418. [00:16:08] Current: 54802, peak: 91541, connected: 238, disconnected: 0, rate: 238/s
  26419. [00:16:09] Current: 55068, peak: 91541, connected: 266, disconnected: 0, rate: 266/s
  26420. [00:16:10] Current: 55141, peak: 91541, connected: 73, disconnected: 0, rate: 73/s
  26421. [00:16:11] Current: 55449, peak: 91541, connected: 308, disconnected: 0, rate: 308/s
  26422. [00:16:12] Current: 55732, peak: 91541, connected: 283, disconnected: 0, rate: 283/s
  26423. [00:16:13] Current: 56042, peak: 91541, connected: 310, disconnected: 0, rate: 310/s
  26424. [00:16:14] Current: 56424, peak: 91541, connected: 382, disconnected: 0, rate: 382/s
  26425. [00:16:15] Current: 56689, peak: 91541, connected: 265, disconnected: 0, rate: 265/s
  26426. [00:16:16] Current: 56822, peak: 91541, connected: 133, disconnected: 0, rate: 133/s
  26427. [00:16:17] Current: 56823, peak: 91541, connected: 1, disconnected: 0, rate: 1/s
  26428. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26429. Heartbeat took longer than "00:00:01" at "06/01/2019 00:43:04 +00:00".
  26430. [00:16:18] Current: 56893, peak: 91541, connected: 70, disconnected: 0, rate: 70/s
  26431. [00:16:19] Current: 57160, peak: 91541, connected: 267, disconnected: 0, rate: 267/s
  26432. [00:16:20] Current: 57555, peak: 91541, connected: 395, disconnected: 0, rate: 395/s
  26433. [00:16:21] Current: 57959, peak: 91541, connected: 404, disconnected: 0, rate: 404/s
  26434. [00:16:22] Current: 58412, peak: 91541, connected: 453, disconnected: 0, rate: 453/s
  26435. [00:16:23] Current: 58846, peak: 91541, connected: 434, disconnected: 0, rate: 434/s
  26436. [00:16:24] Current: 59182, peak: 91541, connected: 336, disconnected: 0, rate: 336/s
  26437. [00:16:25] Current: 59275, peak: 91541, connected: 93, disconnected: 0, rate: 93/s
  26438. [00:16:26] Current: 59506, peak: 91541, connected: 231, disconnected: 0, rate: 231/s
  26439. [00:16:28] Current: 59506, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26440. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26441. Heartbeat took longer than "00:00:01" at "06/01/2019 00:43:15 +00:00".
  26442. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26443. Heartbeat took longer than "00:00:01" at "06/01/2019 00:43:15 +00:00".
  26444. [00:16:29] Current: 59538, peak: 91541, connected: 32, disconnected: 0, rate: 32/s
  26445. [00:16:30] Current: 59814, peak: 91541, connected: 276, disconnected: 0, rate: 276/s
  26446. [00:16:31] Current: 60243, peak: 91541, connected: 429, disconnected: 0, rate: 429/s
  26447. [00:16:32] Current: 60676, peak: 91541, connected: 433, disconnected: 0, rate: 433/s
  26448. [00:16:33] Current: 61115, peak: 91541, connected: 439, disconnected: 0, rate: 439/s
  26449. [00:16:34] Current: 61447, peak: 91541, connected: 332, disconnected: 0, rate: 332/s
  26450. [00:16:35] Current: 61859, peak: 91541, connected: 412, disconnected: 0, rate: 412/s
  26451. [00:16:37] Current: 62131, peak: 91541, connected: 272, disconnected: 0, rate: 272/s
  26452. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26453. Heartbeat took longer than "00:00:01" at "06/01/2019 00:43:23 +00:00".
  26454. [00:16:38] Current: 62232, peak: 91541, connected: 101, disconnected: 0, rate: 101/s
  26455. [00:16:39] Current: 62550, peak: 91541, connected: 318, disconnected: 0, rate: 318/s
  26456. [00:16:40] Current: 62836, peak: 91541, connected: 286, disconnected: 0, rate: 286/s
  26457. [00:16:41] Current: 63061, peak: 91541, connected: 225, disconnected: 0, rate: 225/s
  26458. [00:16:42] Current: 63321, peak: 91541, connected: 260, disconnected: 0, rate: 260/s
  26459. [00:16:43] Current: 63779, peak: 91541, connected: 458, disconnected: 0, rate: 458/s
  26460. [00:16:44] Current: 64000, peak: 91541, connected: 221, disconnected: 0, rate: 221/s
  26461. [00:16:45] Current: 64177, peak: 91541, connected: 177, disconnected: 0, rate: 177/s
  26462. [00:16:47] Current: 64288, peak: 91541, connected: 111, disconnected: 0, rate: 111/s
  26463. [00:16:48] Current: 64383, peak: 91541, connected: 95, disconnected: 0, rate: 95/s
  26464. [00:16:49] Current: 64686, peak: 91541, connected: 303, disconnected: 0, rate: 303/s
  26465. [00:16:50] Current: 65100, peak: 91541, connected: 414, disconnected: 0, rate: 414/s
  26466. [00:16:51] Current: 65433, peak: 91541, connected: 333, disconnected: 0, rate: 333/s
  26467. [00:16:52] Current: 65843, peak: 91541, connected: 410, disconnected: 0, rate: 410/s
  26468. [00:16:53] Current: 66226, peak: 91541, connected: 383, disconnected: 0, rate: 383/s
  26469. [00:16:54] Current: 66618, peak: 91541, connected: 392, disconnected: 0, rate: 392/s
  26470. [00:16:55] Current: 66859, peak: 91541, connected: 241, disconnected: 0, rate: 241/s
  26471. [00:16:57] Current: 67226, peak: 91541, connected: 367, disconnected: 0, rate: 367/s
  26472. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26473. Heartbeat took longer than "00:00:01" at "06/01/2019 00:43:44 +00:00".
  26474. [00:16:58] Current: 67233, peak: 91541, connected: 7, disconnected: 0, rate: 7/s
  26475. [00:16:59] Current: 67326, peak: 91541, connected: 93, disconnected: 0, rate: 93/s
  26476. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26477. Heartbeat took longer than "00:00:01" at "06/01/2019 00:43:45 +00:00".
  26478. [00:17:00] Current: 67494, peak: 91541, connected: 168, disconnected: 0, rate: 168/s
  26479. [00:17:01] Current: 67586, peak: 91541, connected: 92, disconnected: 0, rate: 92/s
  26480. [00:17:02] Current: 67814, peak: 91541, connected: 228, disconnected: 0, rate: 228/s
  26481. [00:17:03] Current: 68095, peak: 91541, connected: 281, disconnected: 0, rate: 281/s
  26482. [00:17:04] Current: 68224, peak: 91541, connected: 129, disconnected: 0, rate: 129/s
  26483. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26484. Heartbeat took longer than "00:00:01" at "06/01/2019 00:43:53 +00:00".
  26485. [00:17:07] Current: 68246, peak: 91541, connected: 22, disconnected: 0, rate: 22/s
  26486. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26487. Heartbeat took longer than "00:00:01" at "06/01/2019 00:43:53 +00:00".
  26488. [00:17:08] Current: 68272, peak: 91541, connected: 26, disconnected: 0, rate: 26/s
  26489. [00:17:09] Current: 68293, peak: 91541, connected: 21, disconnected: 0, rate: 21/s
  26490. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26491. Heartbeat took longer than "00:00:01" at "06/01/2019 00:43:55 +00:00".
  26492. [00:17:10] Current: 68339, peak: 91541, connected: 46, disconnected: 0, rate: 46/s
  26493. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26494. Heartbeat took longer than "00:00:01" at "06/01/2019 00:43:57 +00:00".
  26495. [00:17:11] Current: 68345, peak: 91541, connected: 6, disconnected: 0, rate: 6/s
  26496. [00:17:12] Current: 68345, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26497. [00:17:13] Current: 68383, peak: 91541, connected: 38, disconnected: 0, rate: 38/s
  26498. [00:17:15] Current: 68419, peak: 91541, connected: 36, disconnected: 0, rate: 36/s
  26499. [00:17:16] Current: 68419, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26500. [00:17:17] Current: 68423, peak: 91541, connected: 4, disconnected: 0, rate: 4/s
  26501. [00:17:18] Current: 68439, peak: 91541, connected: 16, disconnected: 0, rate: 16/s
  26502. [00:17:19] Current: 68449, peak: 91541, connected: 10, disconnected: 0, rate: 10/s
  26503. [00:17:20] Current: 68571, peak: 91541, connected: 122, disconnected: 0, rate: 122/s
  26504. [00:17:21] Current: 68956, peak: 91541, connected: 385, disconnected: 0, rate: 385/s
  26505. [00:17:23] Current: 69276, peak: 91541, connected: 320, disconnected: 0, rate: 320/s
  26506. [00:17:24] Current: 69284, peak: 91541, connected: 8, disconnected: 0, rate: 8/s
  26507. [00:17:25] Current: 69359, peak: 91541, connected: 75, disconnected: 0, rate: 75/s
  26508. [00:17:26] Current: 69477, peak: 91541, connected: 118, disconnected: 0, rate: 118/s
  26509. [00:17:27] Current: 69795, peak: 91541, connected: 318, disconnected: 0, rate: 318/s
  26510. [00:17:28] Current: 70212, peak: 91541, connected: 417, disconnected: 0, rate: 417/s
  26511. [00:17:29] Current: 70447, peak: 91541, connected: 235, disconnected: 0, rate: 235/s
  26512. [00:17:30] Current: 70524, peak: 91541, connected: 77, disconnected: 0, rate: 77/s
  26513. [00:17:31] Current: 70532, peak: 91541, connected: 8, disconnected: 0, rate: 8/s
  26514. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26515. Heartbeat took longer than "00:00:01" at "06/01/2019 00:44:20 +00:00".
  26516. [00:17:34] Current: 70607, peak: 91541, connected: 75, disconnected: 0, rate: 75/s
  26517. [00:17:35] Current: 70642, peak: 91541, connected: 35, disconnected: 0, rate: 35/s
  26518. [00:17:36] Current: 70773, peak: 91541, connected: 131, disconnected: 0, rate: 131/s
  26519. [00:17:37] Current: 71157, peak: 91541, connected: 384, disconnected: 0, rate: 384/s
  26520. [00:17:38] Current: 71496, peak: 91541, connected: 339, disconnected: 0, rate: 339/s
  26521. [00:17:39] Current: 71858, peak: 91541, connected: 362, disconnected: 0, rate: 362/s
  26522. [00:17:40] Current: 71973, peak: 91541, connected: 115, disconnected: 0, rate: 115/s
  26523. [00:17:41] Current: 72307, peak: 91541, connected: 334, disconnected: 0, rate: 334/s
  26524. [00:17:42] Current: 72712, peak: 91541, connected: 405, disconnected: 0, rate: 405/s
  26525. [00:17:43] Current: 72764, peak: 91541, connected: 52, disconnected: 0, rate: 52/s
  26526. [00:17:45] Current: 73006, peak: 91541, connected: 242, disconnected: 0, rate: 242/s
  26527. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26528. Heartbeat took longer than "00:00:01" at "06/01/2019 00:44:32 +00:00".
  26529. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26530. Heartbeat took longer than "00:00:01" at "06/01/2019 00:44:32 +00:00".
  26531. [00:17:46] Current: 73041, peak: 91541, connected: 35, disconnected: 0, rate: 35/s
  26532. [00:17:47] Current: 73099, peak: 91541, connected: 58, disconnected: 0, rate: 58/s
  26533. [00:17:48] Current: 73099, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26534. [00:17:49] Current: 73409, peak: 91541, connected: 310, disconnected: 0, rate: 310/s
  26535. [00:17:50] Current: 73656, peak: 91541, connected: 247, disconnected: 0, rate: 247/s
  26536. [00:17:51] Current: 73823, peak: 91541, connected: 167, disconnected: 0, rate: 167/s
  26537. [00:17:52] Current: 74142, peak: 91541, connected: 319, disconnected: 0, rate: 319/s
  26538. [00:17:53] Current: 74521, peak: 91541, connected: 379, disconnected: 0, rate: 379/s
  26539. [00:17:54] Current: 74702, peak: 91541, connected: 181, disconnected: 0, rate: 181/s
  26540. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26541. Heartbeat took longer than "00:00:01" at "06/01/2019 00:44:42 +00:00".
  26542. [00:17:56] Current: 74767, peak: 91541, connected: 65, disconnected: 0, rate: 65/s
  26543. [00:17:57] Current: 74774, peak: 91541, connected: 7, disconnected: 0, rate: 7/s
  26544. [00:17:59] Current: 74785, peak: 91541, connected: 11, disconnected: 0, rate: 11/s
  26545. [00:18:00] Current: 74874, peak: 91541, connected: 89, disconnected: 0, rate: 89/s
  26546. [00:18:01] Current: 75304, peak: 91541, connected: 430, disconnected: 0, rate: 430/s
  26547. [00:18:03] Current: 75330, peak: 91541, connected: 26, disconnected: 0, rate: 26/s
  26548. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26549. Heartbeat took longer than "00:00:01" at "06/01/2019 00:44:49 +00:00".
  26550. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26551. Heartbeat took longer than "00:00:01" at "06/01/2019 00:44:49 +00:00".
  26552. [00:18:04] Current: 75341, peak: 91541, connected: 11, disconnected: 0, rate: 11/s
  26553. [00:18:05] Current: 75341, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26554. [00:18:06] Current: 75378, peak: 91541, connected: 37, disconnected: 0, rate: 37/s
  26555. [00:18:07] Current: 75428, peak: 91541, connected: 50, disconnected: 0, rate: 50/s
  26556. [00:18:09] Current: 75430, peak: 91541, connected: 2, disconnected: 0, rate: 2/s
  26557. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26558. Heartbeat took longer than "00:00:01" at "06/01/2019 00:44:55 +00:00".
  26559. [00:18:10] Current: 75430, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26560. [00:18:11] Current: 75441, peak: 91541, connected: 11, disconnected: 0, rate: 11/s
  26561. [00:18:12] Current: 75530, peak: 91541, connected: 89, disconnected: 0, rate: 89/s
  26562. [00:18:13] Current: 75530, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26563. [00:18:14] Current: 75541, peak: 91541, connected: 11, disconnected: 0, rate: 11/s
  26564. [00:18:15] Current: 75661, peak: 91541, connected: 120, disconnected: 0, rate: 120/s
  26565. [00:18:16] Current: 76094, peak: 91541, connected: 433, disconnected: 0, rate: 433/s
  26566. [00:18:18] Current: 76431, peak: 91541, connected: 337, disconnected: 0, rate: 337/s
  26567. [00:18:19] Current: 76451, peak: 91541, connected: 20, disconnected: 0, rate: 20/s
  26568. [00:18:20] Current: 76502, peak: 91541, connected: 51, disconnected: 0, rate: 51/s
  26569. [00:18:21] Current: 76502, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26570. [00:18:22] Current: 76531, peak: 91541, connected: 29, disconnected: 0, rate: 29/s
  26571. [00:18:23] Current: 76531, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26572. [00:18:24] Current: 76696, peak: 91541, connected: 165, disconnected: 0, rate: 165/s
  26573. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26574. Heartbeat took longer than "00:00:01" at "06/01/2019 00:45:12 +00:00".
  26575. [00:18:26] Current: 76836, peak: 91541, connected: 140, disconnected: 0, rate: 140/s
  26576. [00:18:27] Current: 76884, peak: 91541, connected: 48, disconnected: 0, rate: 48/s
  26577. [00:18:28] Current: 76922, peak: 91541, connected: 38, disconnected: 0, rate: 38/s
  26578. [00:18:29] Current: 76936, peak: 91541, connected: 14, disconnected: 0, rate: 14/s
  26579. [00:18:30] Current: 77080, peak: 91541, connected: 144, disconnected: 0, rate: 144/s
  26580. [00:18:31] Current: 77522, peak: 91541, connected: 442, disconnected: 0, rate: 442/s
  26581. [00:18:33] Current: 77551, peak: 91541, connected: 29, disconnected: 0, rate: 29/s
  26582. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26583. Heartbeat took longer than "00:00:01" at "06/01/2019 00:45:19 +00:00".
  26584. [00:18:34] Current: 77641, peak: 91541, connected: 90, disconnected: 0, rate: 90/s
  26585. [00:18:36] Current: 77673, peak: 91541, connected: 32, disconnected: 0, rate: 32/s
  26586. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26587. Heartbeat took longer than "00:00:01" at "06/01/2019 00:45:22 +00:00".
  26588. [00:18:37] Current: 77673, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26589. [00:18:38] Current: 77741, peak: 91541, connected: 68, disconnected: 0, rate: 68/s
  26590. [00:18:39] Current: 77741, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26591. [00:18:40] Current: 77744, peak: 91541, connected: 3, disconnected: 0, rate: 3/s
  26592. [00:18:41] Current: 78096, peak: 91541, connected: 352, disconnected: 0, rate: 352/s
  26593. [00:18:42] Current: 78368, peak: 91541, connected: 272, disconnected: 0, rate: 272/s
  26594. [00:18:45] Current: 78425, peak: 91541, connected: 57, disconnected: 0, rate: 57/s
  26595. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26596. Heartbeat took longer than "00:00:01" at "06/01/2019 00:45:31 +00:00".
  26597. [00:18:46] Current: 78448, peak: 91541, connected: 23, disconnected: 0, rate: 23/s
  26598. [00:18:47] Current: 78468, peak: 91541, connected: 20, disconnected: 0, rate: 20/s
  26599. [00:18:48] Current: 78468, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26600. [00:18:49] Current: 78525, peak: 91541, connected: 57, disconnected: 0, rate: 57/s
  26601. [00:18:50] Current: 78548, peak: 91541, connected: 23, disconnected: 0, rate: 23/s
  26602. [00:18:51] Current: 78548, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26603. [00:18:54] Current: 78548, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26604. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26605. Heartbeat took longer than "00:00:01" at "06/01/2019 00:45:40 +00:00".
  26606. [00:18:55] Current: 78568, peak: 91541, connected: 20, disconnected: 0, rate: 20/s
  26607. [00:18:56] Current: 78798, peak: 91541, connected: 230, disconnected: 0, rate: 230/s
  26608. [00:18:58] Current: 79084, peak: 91541, connected: 286, disconnected: 0, rate: 286/s
  26609. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26610. Heartbeat took longer than "00:00:01" at "06/01/2019 00:45:44 +00:00".
  26611. [00:18:59] Current: 79107, peak: 91541, connected: 23, disconnected: 0, rate: 23/s
  26612. [00:19:00] Current: 79314, peak: 91541, connected: 207, disconnected: 0, rate: 207/s
  26613. [00:19:02] Current: 79624, peak: 91541, connected: 310, disconnected: 0, rate: 310/s
  26614. [00:19:03] Current: 79645, peak: 91541, connected: 21, disconnected: 0, rate: 21/s
  26615. [00:19:04] Current: 79891, peak: 91541, connected: 246, disconnected: 0, rate: 246/s
  26616. [00:19:05] Current: 80209, peak: 91541, connected: 318, disconnected: 0, rate: 318/s
  26617. [00:19:06] Current: 80209, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26618. [00:19:07] Current: 80216, peak: 91541, connected: 7, disconnected: 0, rate: 7/s
  26619. [00:19:08] Current: 80248, peak: 91541, connected: 32, disconnected: 0, rate: 32/s
  26620. [00:19:10] Current: 80248, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26621. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26622. Heartbeat took longer than "00:00:01" at "06/01/2019 00:45:56 +00:00".
  26623. [00:19:11] Current: 80295, peak: 91541, connected: 47, disconnected: 0, rate: 47/s
  26624. [00:19:13] Current: 80295, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26625. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26626. Heartbeat took longer than "00:00:01" at "06/01/2019 00:45:59 +00:00".
  26627. [00:19:15] Current: 80298, peak: 91541, connected: 3, disconnected: 0, rate: 3/s
  26628. [00:19:16] Current: 80298, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26629. [00:19:17] Current: 80298, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26630. [00:19:19] Current: 80316, peak: 91541, connected: 18, disconnected: 0, rate: 18/s
  26631. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26632. Heartbeat took longer than "00:00:01" at "06/01/2019 00:46:05 +00:00".
  26633. [00:19:20] Current: 80316, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26634. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26635. Heartbeat took longer than "00:00:01" at "06/01/2019 00:46:06 +00:00".
  26636. [00:19:21] Current: 80316, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26637. [00:19:24] Current: 80395, peak: 91541, connected: 79, disconnected: 0, rate: 79/s
  26638. [00:19:25] Current: 80395, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26639. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26640. Heartbeat took longer than "00:00:01" at "06/01/2019 00:46:12 +00:00".
  26641. [00:19:27] Current: 80395, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26642. [00:19:28] Current: 80397, peak: 91541, connected: 2, disconnected: 0, rate: 2/s
  26643. [00:19:29] Current: 80398, peak: 91541, connected: 1, disconnected: 0, rate: 1/s
  26644. [00:19:31] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26645. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26646. Heartbeat took longer than "00:00:01" at "06/01/2019 00:46:20 +00:00".
  26647. [00:19:35] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26648. [00:19:37] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26649. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26650. Heartbeat took longer than "00:00:01" at "06/01/2019 00:46:23 +00:00".
  26651. [00:19:38] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26652. [00:19:43] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26653. [00:19:44] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26654. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26655. Heartbeat took longer than "00:00:01" at "06/01/2019 00:46:31 +00:00".
  26656. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26657. Heartbeat took longer than "00:00:01" at "06/01/2019 00:46:31 +00:00".
  26658. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26659. Heartbeat took longer than "00:00:01" at "06/01/2019 00:46:31 +00:00".
  26660. [00:19:48] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26661. [00:19:53] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26662. [00:20:00] Current: 80495, peak: 91541, connected: 97, disconnected: 0, rate: 97/s
  26663. [00:20:01] Current: 80495, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26664. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26665. Heartbeat took longer than "00:00:01" at "06/01/2019 00:46:48 +00:00".
  26666. [00:20:02] Current: 80495, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26667. [00:20:03] Current: 80495, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26668. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26669. Heartbeat took longer than "00:00:01" at "06/01/2019 00:46:50 +00:00".
  26670. [00:20:08] Current: 80495, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26671. [00:20:09] Current: 80495, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26672. [00:20:11] Current: 80495, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26673. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26674. Heartbeat took longer than "00:00:01" at "06/01/2019 00:46:58 +00:00".
  26675. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26676. Heartbeat took longer than "00:00:01" at "06/01/2019 00:47:01 +00:00".
  26677. [00:20:16] Current: 80398, peak: 91541, connected: 0, disconnected: 97, rate: -97/s
  26678. [00:20:17] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26679. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26680. Heartbeat took longer than "00:00:01" at "06/01/2019 00:47:06 +00:00".
  26681. [00:20:23] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26682. [00:20:24] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26683. [00:20:25] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26684. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26685. Heartbeat took longer than "00:00:01" at "06/01/2019 00:47:11 +00:00".
  26686. [00:20:26] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26687. [00:20:27] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26688. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26689. Heartbeat took longer than "00:00:01" at "06/01/2019 00:47:15 +00:00".
  26690. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26691. Heartbeat took longer than "00:00:01" at "06/01/2019 00:47:15 +00:00".
  26692. [00:20:33] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26693. [00:20:34] Current: 80495, peak: 91541, connected: 97, disconnected: 0, rate: 97/s
  26694. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26695. Heartbeat took longer than "00:00:01" at "06/01/2019 00:47:20 +00:00".
  26696. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26697. Heartbeat took longer than "00:00:01" at "06/01/2019 00:47:22 +00:00".
  26698. [00:20:39] Current: 80495, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26699. [00:20:41] Current: 80495, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26700. [00:20:42] Current: 80498, peak: 91541, connected: 3, disconnected: 0, rate: 3/s
  26701. [00:20:44] Current: 80498, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26702. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26703. Heartbeat took longer than "00:00:01" at "06/01/2019 00:47:30 +00:00".
  26704. [00:20:45] Current: 80498, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26705. [00:20:50] Current: 80498, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26706. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26707. Heartbeat took longer than "00:00:01" at "06/01/2019 00:47:37 +00:00".
  26708. [00:20:52] Current: 80498, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26709. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26710. Heartbeat took longer than "00:00:01" at "06/01/2019 00:47:38 +00:00".
  26711. [00:20:58] Current: 80401, peak: 91541, connected: 0, disconnected: 97, rate: -97/s
  26712. [00:20:59] Current: 80401, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26713. [00:21:00] Current: 80401, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26714. [00:21:03] Current: 80401, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26715. [00:21:04] Current: 80401, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26716. [00:21:05] Current: 80398, peak: 91541, connected: 0, disconnected: 3, rate: -3/s
  26717. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26718. Heartbeat took longer than "00:00:01" at "06/01/2019 00:47:51 +00:00".
  26719. [00:21:06] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26720. [00:21:07] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26721. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26722. Heartbeat took longer than "00:00:01" at "06/01/2019 00:47:53 +00:00".
  26723. [00:21:08] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26724. [00:21:09] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26725. [00:21:11] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26726. [00:21:12] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26727. [00:21:13] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26728. [00:21:14] Current: 80494, peak: 91541, connected: 96, disconnected: 0, rate: 96/s
  26729. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26730. Heartbeat took longer than "00:00:01" at "06/01/2019 00:48:01 +00:00".
  26731. [00:21:16] Current: 80494, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26732. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26733. Heartbeat took longer than "00:00:01" at "06/01/2019 00:48:02 +00:00".
  26734. [00:21:17] Current: 80494, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26735. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26736. Heartbeat took longer than "00:00:01" at "06/01/2019 00:48:03 +00:00".
  26737. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26738. Heartbeat took longer than "00:00:01" at "06/01/2019 00:48:03 +00:00".
  26739. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26740. Heartbeat took longer than "00:00:01" at "06/01/2019 00:48:15 +00:00".
  26741. [00:21:30] Current: 80494, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26742. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26743. Heartbeat took longer than "00:00:01" at "06/01/2019 00:48:17 +00:00".
  26744. [00:21:31] Current: 80494, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26745. [00:21:32] Current: 80494, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26746. [00:21:33] Current: 80494, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26747. [00:21:35] Current: 80494, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26748. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26749. Heartbeat took longer than "00:00:01" at "06/01/2019 00:48:21 +00:00".
  26750. [00:21:36] Current: 80494, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26751. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26752. Heartbeat took longer than "00:00:01" at "06/01/2019 00:48:22 +00:00".
  26753. [00:21:37] Current: 80494, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26754. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26755. Heartbeat took longer than "00:00:01" at "06/01/2019 00:48:23 +00:00".
  26756. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26757. Heartbeat took longer than "00:00:01" at "06/01/2019 00:48:26 +00:00".
  26758. [00:21:43] Current: 80398, peak: 91541, connected: 0, disconnected: 96, rate: -96/s
  26759. [00:21:45] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26760. [00:21:47] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26761. [00:21:48] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26762. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26763. Heartbeat took longer than "00:00:01" at "06/01/2019 00:48:34 +00:00".
  26764. [00:21:49] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26765. [00:21:50] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26766. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26767. Heartbeat took longer than "00:00:01" at "06/01/2019 00:48:36 +00:00".
  26768. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26769. Heartbeat took longer than "00:00:01" at "06/01/2019 00:48:36 +00:00".
  26770. [00:21:51] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26771. [00:21:52] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26772. [00:21:53] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26773. [00:21:54] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26774. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26775. Heartbeat took longer than "00:00:01" at "06/01/2019 00:48:40 +00:00".
  26776. [00:21:56] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26777. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26778. Heartbeat took longer than "00:00:01" at "06/01/2019 00:48:42 +00:00".
  26779. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26780. Heartbeat took longer than "00:00:01" at "06/01/2019 00:48:42 +00:00".
  26781. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26782. Heartbeat took longer than "00:00:01" at "06/01/2019 00:48:43 +00:00".
  26783. [00:21:57] Current: 80495, peak: 91541, connected: 97, disconnected: 0, rate: 97/s
  26784. [00:21:58] Current: 80495, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26785. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26786. Heartbeat took longer than "00:00:01" at "06/01/2019 00:48:44 +00:00".
  26787. [00:22:00] Current: 80495, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26788. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26789. Heartbeat took longer than "00:00:01" at "06/01/2019 00:48:46 +00:00".
  26790. [00:22:01] Current: 80495, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26791. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26792. Heartbeat took longer than "00:00:01" at "06/01/2019 00:48:47 +00:00".
  26793. [00:22:02] Current: 80495, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26794. [00:22:04] Current: 80495, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26795. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26796. Heartbeat took longer than "00:00:01" at "06/01/2019 00:48:50 +00:00".
  26797. [00:22:05] Current: 80495, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26798. [00:22:06] Current: 80398, peak: 91541, connected: 0, disconnected: 97, rate: -97/s
  26799. [00:22:07] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26800. [00:22:08] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26801. [00:22:09] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26802. [00:22:10] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26803. [00:22:11] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26804. [00:22:12] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26805. [00:22:13] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26806. [00:22:14] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26807. [00:22:15] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26808. [00:22:17] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26809. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26810. Heartbeat took longer than "00:00:01" at "06/01/2019 00:49:03 +00:00".
  26811. [00:22:18] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26812. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26813. Heartbeat took longer than "00:00:01" at "06/01/2019 00:49:05 +00:00".
  26814. [00:22:20] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26815. [00:22:21] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26816. [00:22:22] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26817. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26818. Heartbeat took longer than "00:00:01" at "06/01/2019 00:49:08 +00:00".
  26819. [00:22:23] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26820. [00:22:24] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26821. [00:22:25] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26822. [00:22:26] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26823. [00:22:27] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26824. [00:22:28] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26825. [00:22:29] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26826. [00:22:32] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26827. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26828. Heartbeat took longer than "00:00:01" at "06/01/2019 00:49:18 +00:00".
  26829. [00:22:33] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26830. [00:22:34] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26831. [00:22:35] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26832. [00:22:36] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26833. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26834. Heartbeat took longer than "00:00:01" at "06/01/2019 00:49:23 +00:00".
  26835. [00:22:37] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26836. [00:22:38] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26837. [00:22:39] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26838. [00:22:40] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26839. [00:22:41] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26840. [00:22:42] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26841. [00:22:43] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26842. [00:22:44] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26843. [00:22:45] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26844. [00:22:46] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26845. [00:22:47] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26846. [00:22:49] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26847. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26848. Heartbeat took longer than "00:00:01" at "06/01/2019 00:49:36 +00:00".
  26849. [00:22:51] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26850. [00:22:52] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26851. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26852. Heartbeat took longer than "00:00:01" at "06/01/2019 00:49:38 +00:00".
  26853. [00:22:53] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26854. [00:22:54] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26855. [00:22:55] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26856. [00:22:56] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26857. [00:22:57] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26858. [00:22:58] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26859. [00:22:59] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26860. [00:23:01] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26861. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26862. Heartbeat took longer than "00:00:01" at "06/01/2019 00:49:47 +00:00".
  26863. [00:23:02] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26864. [00:23:03] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26865. [00:23:04] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26866. [00:23:05] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26867. [00:23:06] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26868. [00:23:07] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26869. [00:23:08] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26870. [00:23:09] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26871. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26872. Heartbeat took longer than "00:00:01" at "06/01/2019 00:49:55 +00:00".
  26873. [00:23:10] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26874. [00:23:11] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26875. [00:23:12] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26876. [00:23:13] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26877. [00:23:14] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26878. [00:23:16] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26879. [00:23:17] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26880. [00:23:18] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26881. [00:23:19] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26882. [00:23:20] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26883. [00:23:22] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26884. [00:23:23] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26885. [00:23:26] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26886. [00:23:27] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26887. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26888. Heartbeat took longer than "00:00:01" at "06/01/2019 00:50:14 +00:00".
  26889. [00:23:28] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26890. [00:23:30] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26891. [00:23:31] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26892. [00:23:32] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26893. [00:23:33] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26894. [00:23:34] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26895. [00:23:36] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26896. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26897. Heartbeat took longer than "00:00:01" at "06/01/2019 00:50:22 +00:00".
  26898. [00:23:37] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26899. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26900. Heartbeat took longer than "00:00:01" at "06/01/2019 00:50:26 +00:00".
  26901. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26902. Heartbeat took longer than "00:00:01" at "06/01/2019 00:50:26 +00:00".
  26903. [00:23:41] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26904. [00:23:42] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26905. [00:23:43] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26906. [00:23:44] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26907. [00:23:45] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26908. [00:23:46] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26909. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26910. Heartbeat took longer than "00:00:01" at "06/01/2019 00:50:33 +00:00".
  26911. [00:23:47] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26912. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26913. Heartbeat took longer than "00:00:01" at "06/01/2019 00:50:35 +00:00".
  26914. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26915. Heartbeat took longer than "00:00:01" at "06/01/2019 00:50:35 +00:00".
  26916. [00:23:50] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26917. [00:23:51] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26918. [00:23:52] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26919. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26920. Heartbeat took longer than "00:00:01" at "06/01/2019 00:50:41 +00:00".
  26921. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26922. Heartbeat took longer than "00:00:01" at "06/01/2019 00:50:42 +00:00".
  26923. [00:23:56] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26924. [00:23:58] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26925. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26926. Heartbeat took longer than "00:00:01" at "06/01/2019 00:50:45 +00:00".
  26927. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26928. Heartbeat took longer than "00:00:01" at "06/01/2019 00:50:45 +00:00".
  26929. [00:24:02] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26930. [00:24:03] Current: 80398, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26931. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26932. Heartbeat took longer than "00:00:01" at "06/01/2019 00:50:50 +00:00".
  26933. [00:24:04] Current: 80389, peak: 91541, connected: 0, disconnected: 9, rate: -9/s
  26934. [00:24:05] Current: 80389, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26935. [00:24:06] Current: 80389, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26936. [00:24:08] Current: 80274, peak: 91541, connected: 0, disconnected: 115, rate: -115/s
  26937. [00:24:13] Current: 80212, peak: 91541, connected: 0, disconnected: 62, rate: -62/s
  26938. [00:24:14] Current: 80212, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26939. [00:24:15] Current: 80212, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26940. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26941. Heartbeat took longer than "00:00:01" at "06/01/2019 00:51:02 +00:00".
  26942. [00:24:16] Current: 80212, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26943. [00:24:18] Current: 80212, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26944. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26945. Heartbeat took longer than "00:00:01" at "06/01/2019 00:51:04 +00:00".
  26946. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26947. Heartbeat took longer than "00:00:01" at "06/01/2019 00:51:07 +00:00".
  26948. [00:24:23] Current: 80212, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26949. [00:24:24] Current: 80161, peak: 91541, connected: 0, disconnected: 51, rate: -51/s
  26950. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26951. Heartbeat took longer than "00:00:01" at "06/01/2019 00:51:10 +00:00".
  26952. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26953. Heartbeat took longer than "00:00:01" at "06/01/2019 00:51:13 +00:00".
  26954. [00:24:31] Current: 80133, peak: 91541, connected: 0, disconnected: 28, rate: -28/s
  26955. [00:24:32] Current: 80133, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26956. [00:24:33] Current: 80133, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26957. [00:24:36] Current: 80133, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26958. [00:24:37] Current: 80133, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26959. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26960. Heartbeat took longer than "00:00:01" at "06/01/2019 00:51:23 +00:00".
  26961. [00:24:38] Current: 80133, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26962. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26963. Heartbeat took longer than "00:00:01" at "06/01/2019 00:51:24 +00:00".
  26964. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26965. Heartbeat took longer than "00:00:01" at "06/01/2019 00:51:24 +00:00".
  26966. [00:24:43] Current: 80133, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26967. [00:24:45] Current: 80133, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26968. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26969. Heartbeat took longer than "00:00:01" at "06/01/2019 00:51:34 +00:00".
  26970. [00:24:52] Current: 80133, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26971. [00:24:53] Current: 80133, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26972. [00:24:55] Current: 80133, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26973. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26974. Heartbeat took longer than "00:00:01" at "06/01/2019 00:51:41 +00:00".
  26975. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26976. Heartbeat took longer than "00:00:01" at "06/01/2019 00:51:41 +00:00".
  26977. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26978. Heartbeat took longer than "00:00:01" at "06/01/2019 00:51:44 +00:00".
  26979. [00:25:05] Current: 80133, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26980. [00:25:06] Current: 80133, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26981. [00:25:07] Current: 80133, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26982. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26983. Heartbeat took longer than "00:00:01" at "06/01/2019 00:51:54 +00:00".
  26984. [00:25:08] Current: 80133, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26985. [00:25:09] Current: 80133, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26986. [00:25:10] Current: 80133, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26987. [00:25:11] Current: 80133, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26988. [00:25:12] Current: 80133, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26989. [00:25:14] Current: 80133, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26990. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26991. Heartbeat took longer than "00:00:01" at "06/01/2019 00:52:09 +00:00".
  26992. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26993. Heartbeat took longer than "00:00:01" at "06/01/2019 00:52:10 +00:00".
  26994. [00:25:26] Current: 80133, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  26995. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  26996. Heartbeat took longer than "00:00:01" at "06/01/2019 00:52:25 +00:00".
  26997. [00:25:41] Current: 70668, peak: 91541, connected: 0, disconnected: 9465, rate: -9465/s
  26998. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  26999. Failed writing message. Aborting connection.
  27000. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27001. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27002. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27003. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27004. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27005. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27006. Failed writing message. Aborting connection.
  27007. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27008. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27009. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27010. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27011. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27012. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27013. Failed writing message. Aborting connection.
  27014. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27015. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27016. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27017. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27018. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27019. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27020. Failed writing message. Aborting connection.
  27021. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27022. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27023. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27024. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27025. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27026. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27027. Failed writing message. Aborting connection.
  27028. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27029. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27030. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27031. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27032. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27033. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27034. Failed writing message. Aborting connection.
  27035. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27036. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27037. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27038. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27039. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27040. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27041. Failed writing message. Aborting connection.
  27042. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27043. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27044. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27045. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27046. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27047. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  27048. Heartbeat took longer than "00:00:01" at "06/01/2019 00:52:33 +00:00".
  27049. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  27050. Heartbeat took longer than "00:00:01" at "06/01/2019 00:52:34 +00:00".
  27051. [00:25:51] Current: 51140, peak: 91541, connected: 0, disconnected: 19528, rate: -19528/s
  27052. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  27053. Heartbeat took longer than "00:00:01" at "06/01/2019 00:52:37 +00:00".
  27054. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  27055. Heartbeat took longer than "00:00:01" at "06/01/2019 00:52:37 +00:00".
  27056. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  27057. Heartbeat took longer than "00:00:01" at "06/01/2019 00:52:37 +00:00".
  27058. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  27059. Heartbeat took longer than "00:00:01" at "06/01/2019 00:52:37 +00:00".
  27060. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  27061. Heartbeat took longer than "00:00:01" at "06/01/2019 00:52:37 +00:00".
  27062. [00:25:53] Current: 10841, peak: 91541, connected: 0, disconnected: 40299, rate: -40299/s
  27063. [00:25:54] Current: 1367, peak: 91541, connected: 0, disconnected: 9474, rate: -9474/s
  27064. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27065. Failed writing message. Aborting connection.
  27066. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27067. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27068. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27069. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27070. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27071. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27072. Failed writing message. Aborting connection.
  27073. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27074. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27075. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27076. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27077. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27078. [00:25:55] Current: 1367, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  27079. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27080. Failed writing message. Aborting connection.
  27081. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27082. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27083. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27084. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27085. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27086. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27087. Failed writing message. Aborting connection.
  27088. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27089. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27090. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27091. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27092. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27093. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27094. Failed writing message. Aborting connection.
  27095. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27096. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27097. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27098. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27099. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27100. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27101. Failed writing message. Aborting connection.
  27102. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27103. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27104. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27105. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27106. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27107. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27108. Failed writing message. Aborting connection.
  27109. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27110. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27111. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27112. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27113. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27114. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27115. Failed writing message. Aborting connection.
  27116. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27117. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27118. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27119. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27120. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27121. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27122. Failed writing message. Aborting connection.
  27123. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27124. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27125. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27126. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27127. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27128. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27129. Failed writing message. Aborting connection.
  27130. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27131. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27132. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27133. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27134. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27135. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27136. Failed writing message. Aborting connection.
  27137. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27138. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27139. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27140. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27141. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27142. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27143. Failed writing message. Aborting connection.
  27144. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27145. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27146. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27147. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27148. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27149. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27150. Failed writing message. Aborting connection.
  27151. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27152. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27153. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27154. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27155. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27156. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27157. Failed writing message. Aborting connection.
  27158. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27159. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27160. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27161. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27162. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27163. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27164. Failed writing message. Aborting connection.
  27165. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27166. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27167. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27168. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27169. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27170. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27171. Failed writing message. Aborting connection.
  27172. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27173. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27174. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27175. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27176. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27177. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27178. Failed writing message. Aborting connection.
  27179. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27180. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27181. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27182. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27183. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27184. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27185. Failed writing message. Aborting connection.
  27186. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27187. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27188. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27189. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27190. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27191. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27192. Failed writing message. Aborting connection.
  27193. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27194. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27195. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27196. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27197. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27198. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27199. Failed writing message. Aborting connection.
  27200. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27201. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27202. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27203. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27204. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27205. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27206. Failed writing message. Aborting connection.
  27207. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27208. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27209. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27210. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27211. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27212. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27213. Failed writing message. Aborting connection.
  27214. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27215. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27216. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27217. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27218. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27219. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27220. Failed writing message. Aborting connection.
  27221. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27222. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27223. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27224. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27225. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27226. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27227. Failed writing message. Aborting connection.
  27228. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27229. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27230. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27231. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27232. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27233. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27234. Failed writing message. Aborting connection.
  27235. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27236. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27237. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27238. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27239. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27240. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27241. Failed writing message. Aborting connection.
  27242. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27243. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27244. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27245. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27246. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27247. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27248. Failed writing message. Aborting connection.
  27249. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27250. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27251. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27252. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27253. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27254. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27255. Failed writing message. Aborting connection.
  27256. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27257. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27258. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27259. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27260. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27261. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27262. Failed writing message. Aborting connection.
  27263. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27264. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27265. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27266. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27267. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27268. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27269. Failed writing message. Aborting connection.
  27270. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27271. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27272. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27273. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27274. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27275. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27276. Failed writing message. Aborting connection.
  27277. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27278. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27279. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27280. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27281. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27282. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27283. Failed writing message. Aborting connection.
  27284. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27285. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27286. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27287. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27288. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27289. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27290. Failed writing message. Aborting connection.
  27291. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27292. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27293. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27294. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27295. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27296. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27297. Failed writing message. Aborting connection.
  27298. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27299. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27300. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27301. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27302. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27303. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27304. Failed writing message. Aborting connection.
  27305. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27306. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27307. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27308. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27309. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27310. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27311. Failed writing message. Aborting connection.
  27312. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27313. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27314. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27315. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27316. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27317. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27318. Failed writing message. Aborting connection.
  27319. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27320. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27321. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27322. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27323. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27324. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27325. Failed writing message. Aborting connection.
  27326. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27327. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27328. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27329. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27330. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27331. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27332. Failed writing message. Aborting connection.
  27333. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27334. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27335. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27336. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27337. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27338. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27339. Failed writing message. Aborting connection.
  27340. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27341. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27342. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27343. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27344. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27345. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27346. Failed writing message. Aborting connection.
  27347. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27348. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27349. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27350. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27351. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27352. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27353. Failed writing message. Aborting connection.
  27354. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27355. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27356. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27357. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27358. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27359. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27360. Failed writing message. Aborting connection.
  27361. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27362. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27363. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27364. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27365. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27366. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27367. Failed writing message. Aborting connection.
  27368. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27369. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27370. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27371. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27372. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27373. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27374. Failed writing message. Aborting connection.
  27375. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27376. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27377. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27378. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27379. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27380. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27381. Failed writing message. Aborting connection.
  27382. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27383. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27384. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27385. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27386. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27387. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27388. Failed writing message. Aborting connection.
  27389. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27390. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27391. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27392. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27393. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27394. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27395. Failed writing message. Aborting connection.
  27396. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27397. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27398. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27399. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27400. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27401. [00:25:56] Current: 1121, peak: 91541, connected: 0, disconnected: 246, rate: -246/s
  27402. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27403. Failed writing message. Aborting connection.
  27404. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27405. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27406. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27407. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27408. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27409. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27410. Failed writing message. Aborting connection.
  27411. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27412. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27413. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27414. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27415. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27416. [00:25:57] Current: 1108, peak: 91541, connected: 0, disconnected: 13, rate: -13/s
  27417. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27418. Failed writing message. Aborting connection.
  27419. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27420. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27421. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27422. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27423. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27424. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27425. Failed writing message. Aborting connection.
  27426. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27427. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27428. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27429. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27430. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27431. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27432. Failed writing message. Aborting connection.
  27433. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27434. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27435. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27436. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27437. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27438. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27439. Failed writing message. Aborting connection.
  27440. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27441. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27442. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27443. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27444. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27445. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27446. Failed writing message. Aborting connection.
  27447. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27448. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27449. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27450. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27451. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27452. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27453. Failed writing message. Aborting connection.
  27454. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27455. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27456. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27457. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27458. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27459. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27460. Failed writing message. Aborting connection.
  27461. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27462. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27463. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27464. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27465. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27466. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27467. Failed writing message. Aborting connection.
  27468. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27469. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27470. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27471. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27472. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27473. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27474. Failed writing message. Aborting connection.
  27475. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27476. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27477. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27478. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27479. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27480. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27481. Failed writing message. Aborting connection.
  27482. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27483. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27484. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27485. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27486. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27487. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27488. Failed writing message. Aborting connection.
  27489. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27490. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27491. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27492. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27493. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27494. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27495. Failed writing message. Aborting connection.
  27496. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27497. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27498. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27499. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27500. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27501. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27502. Failed writing message. Aborting connection.
  27503. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27504. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27505. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27506. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27507. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27508. [00:25:58] Current: 1108, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  27509. [00:25:59] Current: 1089, peak: 91541, connected: 0, disconnected: 19, rate: -19/s
  27510. [00:26:00] Current: 1041, peak: 91541, connected: 0, disconnected: 48, rate: -48/s
  27511. [00:26:01] Current: 783, peak: 91541, connected: 0, disconnected: 258, rate: -258/s
  27512. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27513. Failed writing message. Aborting connection.
  27514. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27515. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27516. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27517. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27518. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27519. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27520. Failed writing message. Aborting connection.
  27521. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27522. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27523. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27524. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27525. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27526. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27527. Failed writing message. Aborting connection.
  27528. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27529. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27530. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27531. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27532. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27533. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27534. Failed writing message. Aborting connection.
  27535. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27536. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27537. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27538. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27539. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27540. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27541. Failed writing message. Aborting connection.
  27542. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27543. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27544. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27545. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27546. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27547. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27548. Failed writing message. Aborting connection.
  27549. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27550. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27551. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27552. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27553. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27554. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27555. Failed writing message. Aborting connection.
  27556. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27557. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27558. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27559. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27560. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27561. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27562. Failed writing message. Aborting connection.
  27563. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27564. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27565. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27566. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27567. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27568. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27569. Failed writing message. Aborting connection.
  27570. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27571. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27572. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27573. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27574. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27575. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27576. Failed writing message. Aborting connection.
  27577. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27578. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27579. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27580. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27581. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27582. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27583. Failed writing message. Aborting connection.
  27584. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27585. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27586. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27587. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27588. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27589. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27590. Failed writing message. Aborting connection.
  27591. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27592. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27593. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27594. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27595. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27596. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27597. Failed writing message. Aborting connection.
  27598. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27599. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27600. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27601. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27602. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27603. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27604. Failed writing message. Aborting connection.
  27605. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27606. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27607. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27608. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27609. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27610. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27611. Failed writing message. Aborting connection.
  27612. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27613. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27614. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27615. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27616. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27617. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27618. Failed writing message. Aborting connection.
  27619. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27620. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27621. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27622. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27623. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27624. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27625. Failed writing message. Aborting connection.
  27626. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27627. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27628. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27629. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27630. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27631. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27632. Failed writing message. Aborting connection.
  27633. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27634. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27635. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27636. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27637. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27638. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27639. Failed writing message. Aborting connection.
  27640. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27641. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27642. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27643. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27644. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27645. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27646. Failed writing message. Aborting connection.
  27647. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27648. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27649. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27650. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27651. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27652. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27653. Failed writing message. Aborting connection.
  27654. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27655. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27656. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27657. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27658. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27659. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27660. Failed writing message. Aborting connection.
  27661. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27662. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27663. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27664. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27665. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27666. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27667. Failed writing message. Aborting connection.
  27668. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27669. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27670. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27671. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27672. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27673. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27674. Failed writing message. Aborting connection.
  27675. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27676. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27677. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27678. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27679. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27680. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27681. Failed writing message. Aborting connection.
  27682. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27683. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27684. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27685. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27686. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27687. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27688. Failed writing message. Aborting connection.
  27689. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27690. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27691. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27692. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27693. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27694. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27695. Failed writing message. Aborting connection.
  27696. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27697. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27698. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27699. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27700. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27701. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27702. Failed writing message. Aborting connection.
  27703. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27704. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27705. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27706. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27707. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27708. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27709. Failed writing message. Aborting connection.
  27710. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27711. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27712. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27713. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27714. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27715. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27716. Failed writing message. Aborting connection.
  27717. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27718. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27719. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27720. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27721. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27722. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27723. Failed writing message. Aborting connection.
  27724. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27725. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27726. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27727. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27728. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27729. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27730. Failed writing message. Aborting connection.
  27731. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27732. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27733. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27734. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27735. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27736. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27737. Failed writing message. Aborting connection.
  27738. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27739. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27740. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27741. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27742. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27743. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27744. Failed writing message. Aborting connection.
  27745. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27746. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27747. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27748. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27749. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27750. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27751. Failed writing message. Aborting connection.
  27752. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27753. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27754. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27755. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27756. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27757. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27758. Failed writing message. Aborting connection.
  27759. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27760. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27761. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27762. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27763. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27764. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27765. Failed writing message. Aborting connection.
  27766. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27767. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27768. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27769. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27770. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27771. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27772. Failed writing message. Aborting connection.
  27773. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27774. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27775. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27776. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27777. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27778. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27779. Failed writing message. Aborting connection.
  27780. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27781. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27782. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27783. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27784. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27785. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27786. Failed writing message. Aborting connection.
  27787. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27788. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27789. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27790. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27791. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27792. [00:26:02] Current: 783, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  27793. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27794. Failed writing message. Aborting connection.
  27795. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27796. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27797. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27798. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27799. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27800. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27801. Failed writing message. Aborting connection.
  27802. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27803. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27804. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27805. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27806. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27807. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27808. Failed writing message. Aborting connection.
  27809. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27810. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27811. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27812. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27813. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27814. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27815. Failed writing message. Aborting connection.
  27816. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27817. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27818. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27819. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27820. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27821. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27822. Failed writing message. Aborting connection.
  27823. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27824. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27825. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27826. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27827. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27828. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27829. Failed writing message. Aborting connection.
  27830. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27831. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27832. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27833. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27834. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27835. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27836. Failed writing message. Aborting connection.
  27837. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27838. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27839. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27840. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27841. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27842. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27843. Failed writing message. Aborting connection.
  27844. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27845. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27846. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27847. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27848. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27849. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27850. Failed writing message. Aborting connection.
  27851. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27852. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27853. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27854. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27855. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27856. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27857. Failed writing message. Aborting connection.
  27858. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27859. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27860. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27861. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27862. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27863. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27864. Failed writing message. Aborting connection.
  27865. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27866. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27867. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27868. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27869. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27870. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27871. Failed writing message. Aborting connection.
  27872. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27873. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27874. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27875. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27876. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27877. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27878. Failed writing message. Aborting connection.
  27879. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27880. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27881. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27882. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27883. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27884. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27885. Failed writing message. Aborting connection.
  27886. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27887. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27888. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27889. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27890. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27891. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27892. Failed writing message. Aborting connection.
  27893. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27894. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27895. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27896. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27897. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27898. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27899. Failed writing message. Aborting connection.
  27900. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27901. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27902. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27903. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27904. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27905. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27906. Failed writing message. Aborting connection.
  27907. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27908. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27909. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27910. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27911. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27912. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27913. Failed writing message. Aborting connection.
  27914. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27915. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27916. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27917. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27918. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27919. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27920. Failed writing message. Aborting connection.
  27921. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27922. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27923. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27924. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27925. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27926. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27927. Failed writing message. Aborting connection.
  27928. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27929. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27930. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27931. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27932. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27933. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27934. Failed writing message. Aborting connection.
  27935. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27936. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27937. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27938. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27939. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27940. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27941. Failed writing message. Aborting connection.
  27942. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27943. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27944. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27945. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27946. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27947. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27948. Failed writing message. Aborting connection.
  27949. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27950. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27951. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27952. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27953. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27954. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27955. Failed writing message. Aborting connection.
  27956. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27957. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27958. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27959. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27960. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27961. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27962. Failed writing message. Aborting connection.
  27963. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27964. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27965. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27966. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27967. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27968. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27969. Failed writing message. Aborting connection.
  27970. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27971. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27972. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27973. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27974. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27975. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27976. Failed writing message. Aborting connection.
  27977. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27978. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27979. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27980. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27981. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27982. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27983. Failed writing message. Aborting connection.
  27984. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27985. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27986. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27987. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27988. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27989. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27990. Failed writing message. Aborting connection.
  27991. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27992. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  27993. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27994. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  27995. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  27996. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  27997. Failed writing message. Aborting connection.
  27998. System.InvalidOperationException: Writing is not allowed after writer was completed.
  27999. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28000. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28001. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28002. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28003. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28004. Failed writing message. Aborting connection.
  28005. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28006. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28007. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28008. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28009. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28010. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28011. Failed writing message. Aborting connection.
  28012. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28013. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28014. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28015. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28016. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28017. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28018. Failed writing message. Aborting connection.
  28019. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28020. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28021. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28022. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28023. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28024. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28025. Failed writing message. Aborting connection.
  28026. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28027. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28028. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28029. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28030. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28031. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28032. Failed writing message. Aborting connection.
  28033. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28034. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28035. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28036. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28037. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28038. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28039. Failed writing message. Aborting connection.
  28040. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28041. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28042. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28043. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28044. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28045. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28046. Failed writing message. Aborting connection.
  28047. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28048. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28049. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28050. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28051. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28052. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28053. Failed writing message. Aborting connection.
  28054. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28055. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28056. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28057. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28058. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28059. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28060. Failed writing message. Aborting connection.
  28061. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28062. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28063. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28064. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28065. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28066. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28067. Failed writing message. Aborting connection.
  28068. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28069. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28070. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28071. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28072. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28073. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28074. Failed writing message. Aborting connection.
  28075. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28076. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28077. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28078. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28079. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28080. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28081. Failed writing message. Aborting connection.
  28082. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28083. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28084. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28085. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28086. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28087. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28088. Failed writing message. Aborting connection.
  28089. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28090. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28091. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28092. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28093. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28094. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28095. Failed writing message. Aborting connection.
  28096. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28097. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28098. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28099. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28100. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28101. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28102. Failed writing message. Aborting connection.
  28103. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28104. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28105. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28106. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28107. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28108. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28109. Failed writing message. Aborting connection.
  28110. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28111. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28112. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28113. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28114. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28115. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28116. Failed writing message. Aborting connection.
  28117. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28118. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28119. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28120. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28121. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28122. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28123. Failed writing message. Aborting connection.
  28124. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28125. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28126. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28127. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28128. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28129. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28130. Failed writing message. Aborting connection.
  28131. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28132. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28133. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28134. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28135. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28136. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28137. Failed writing message. Aborting connection.
  28138. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28139. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28140. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28141. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28142. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28143. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28144. Failed writing message. Aborting connection.
  28145. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28146. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28147. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28148. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28149. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28150. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28151. Failed writing message. Aborting connection.
  28152. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28153. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28154. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28155. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28156. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28157. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28158. Failed writing message. Aborting connection.
  28159. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28160. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28161. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28162. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28163. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28164. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28165. Failed writing message. Aborting connection.
  28166. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28167. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28168. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28169. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28170. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28171. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28172. Failed writing message. Aborting connection.
  28173. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28174. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28175. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28176. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28177. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28178. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28179. Failed writing message. Aborting connection.
  28180. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28181. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28182. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28183. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28184. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28185. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28186. Failed writing message. Aborting connection.
  28187. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28188. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28189. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28190. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28191. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28192. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28193. Failed writing message. Aborting connection.
  28194. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28195. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28196. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28197. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28198. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28199. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28200. Failed writing message. Aborting connection.
  28201. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28202. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28203. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28204. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28205. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28206. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28207. Failed writing message. Aborting connection.
  28208. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28209. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28210. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28211. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28212. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28213. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28214. Failed writing message. Aborting connection.
  28215. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28216. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28217. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28218. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28219. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28220. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28221. Failed writing message. Aborting connection.
  28222. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28223. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28224. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28225. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28226. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28227. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28228. Failed writing message. Aborting connection.
  28229. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28230. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28231. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28232. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28233. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28234. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28235. Failed writing message. Aborting connection.
  28236. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28237. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28238. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28239. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28240. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28241. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28242. Failed writing message. Aborting connection.
  28243. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28244. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28245. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28246. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28247. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28248. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28249. Failed writing message. Aborting connection.
  28250. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28251. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28252. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28253. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28254. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28255. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28256. Failed writing message. Aborting connection.
  28257. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28258. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28259. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28260. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28261. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28262. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28263. Failed writing message. Aborting connection.
  28264. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28265. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28266. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28267. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28268. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28269. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28270. Failed writing message. Aborting connection.
  28271. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28272. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28273. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28274. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28275. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28276. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28277. Failed writing message. Aborting connection.
  28278. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28279. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28280. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28281. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28282. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28283. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28284. Failed writing message. Aborting connection.
  28285. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28286. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28287. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28288. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28289. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28290. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28291. Failed writing message. Aborting connection.
  28292. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28293. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28294. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28295. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28296. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28297. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28298. Failed writing message. Aborting connection.
  28299. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28300. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28301. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28302. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28303. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28304. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28305. Failed writing message. Aborting connection.
  28306. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28307. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28308. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28309. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28310. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28311. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28312. Failed writing message. Aborting connection.
  28313. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28314. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28315. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28316. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28317. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28318. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28319. Failed writing message. Aborting connection.
  28320. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28321. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28322. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28323. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28324. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28325. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28326. Failed writing message. Aborting connection.
  28327. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28328. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28329. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28330. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28331. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28332. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28333. Failed writing message. Aborting connection.
  28334. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28335. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28336. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28337. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28338. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28339. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28340. Failed writing message. Aborting connection.
  28341. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28342. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28343. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28344. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28345. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28346. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28347. Failed writing message. Aborting connection.
  28348. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28349. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28350. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28351. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28352. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28353. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28354. Failed writing message. Aborting connection.
  28355. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28356. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28357. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28358. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28359. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28360. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28361. Failed writing message. Aborting connection.
  28362. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28363. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28364. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28365. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28366. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28367. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28368. Failed writing message. Aborting connection.
  28369. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28370. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28371. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28372. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28373. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28374. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28375. Failed writing message. Aborting connection.
  28376. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28377. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28378. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28379. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28380. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28381. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28382. Failed writing message. Aborting connection.
  28383. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28384. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28385. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28386. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28387. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28388. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28389. Failed writing message. Aborting connection.
  28390. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28391. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28392. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28393. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28394. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28395. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28396. Failed writing message. Aborting connection.
  28397. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28398. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28399. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28400. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28401. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28402. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28403. Failed writing message. Aborting connection.
  28404. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28405. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28406. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28407. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28408. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28409. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28410. Failed writing message. Aborting connection.
  28411. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28412. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28413. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28414. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28415. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28416. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28417. Failed writing message. Aborting connection.
  28418. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28419. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28420. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28421. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28422. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28423. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28424. Failed writing message. Aborting connection.
  28425. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28426. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28427. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28428. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28429. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28430. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28431. Failed writing message. Aborting connection.
  28432. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28433. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28434. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28435. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28436. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28437. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28438. Failed writing message. Aborting connection.
  28439. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28440. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28441. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28442. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28443. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28444. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28445. Failed writing message. Aborting connection.
  28446. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28447. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28448. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28449. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28450. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28451. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28452. Failed writing message. Aborting connection.
  28453. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28454. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28455. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28456. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28457. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28458. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28459. Failed writing message. Aborting connection.
  28460. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28461. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28462. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28463. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28464. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28465. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28466. Failed writing message. Aborting connection.
  28467. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28468. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28469. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28470. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28471. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28472. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28473. Failed writing message. Aborting connection.
  28474. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28475. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28476. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28477. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28478. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28479. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28480. Failed writing message. Aborting connection.
  28481. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28482. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28483. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28484. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28485. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28486. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28487. Failed writing message. Aborting connection.
  28488. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28489. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28490. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28491. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28492. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28493. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28494. Failed writing message. Aborting connection.
  28495. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28496. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28497. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28498. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28499. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28500. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28501. Failed writing message. Aborting connection.
  28502. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28503. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28504. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28505. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28506. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28507. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28508. Failed writing message. Aborting connection.
  28509. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28510. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28511. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28512. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28513. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28514. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28515. Failed writing message. Aborting connection.
  28516. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28517. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28518. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28519. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28520. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28521. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28522. Failed writing message. Aborting connection.
  28523. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28524. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28525. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28526. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28527. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28528. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28529. Failed writing message. Aborting connection.
  28530. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28531. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28532. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28533. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28534. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28535. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28536. Failed writing message. Aborting connection.
  28537. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28538. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28539. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28540. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28541. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28542. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28543. Failed writing message. Aborting connection.
  28544. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28545. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28546. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28547. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28548. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28549. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28550. Failed writing message. Aborting connection.
  28551. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28552. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28553. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28554. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28555. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28556. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28557. Failed writing message. Aborting connection.
  28558. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28559. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28560. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28561. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28562. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28563. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28564. Failed writing message. Aborting connection.
  28565. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28566. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28567. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28568. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28569. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28570. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28571. Failed writing message. Aborting connection.
  28572. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28573. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28574. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28575. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28576. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28577. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28578. Failed writing message. Aborting connection.
  28579. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28580. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28581. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28582. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28583. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28584. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28585. Failed writing message. Aborting connection.
  28586. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28587. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28588. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28589. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28590. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28591. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28592. Failed writing message. Aborting connection.
  28593. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28594. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28595. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28596. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28597. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28598. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28599. Failed writing message. Aborting connection.
  28600. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28601. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28602. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28603. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28604. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28605. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28606. Failed writing message. Aborting connection.
  28607. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28608. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28609. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28610. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28611. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28612. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28613. Failed writing message. Aborting connection.
  28614. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28615. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28616. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28617. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28618. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28619. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28620. Failed writing message. Aborting connection.
  28621. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28622. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28623. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28624. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28625. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28626. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28627. Failed writing message. Aborting connection.
  28628. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28629. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28630. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28631. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28632. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28633. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28634. Failed writing message. Aborting connection.
  28635. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28636. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28637. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28638. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28639. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28640. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28641. Failed writing message. Aborting connection.
  28642. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28643. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28644. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28645. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28646. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28647. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28648. Failed writing message. Aborting connection.
  28649. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28650. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28651. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28652. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28653. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28654. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28655. Failed writing message. Aborting connection.
  28656. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28657. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28658. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28659. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28660. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28661. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28662. Failed writing message. Aborting connection.
  28663. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28664. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28665. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28666. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28667. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28668. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28669. Failed writing message. Aborting connection.
  28670. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28671. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28672. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28673. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28674. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28675. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28676. Failed writing message. Aborting connection.
  28677. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28678. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28679. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28680. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28681. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28682. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28683. Failed writing message. Aborting connection.
  28684. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28685. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28686. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28687. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28688. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28689. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28690. Failed writing message. Aborting connection.
  28691. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28692. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28693. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28694. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28695. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28696. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28697. Failed writing message. Aborting connection.
  28698. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28699. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28700. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28701. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28702. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28703. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28704. Failed writing message. Aborting connection.
  28705. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28706. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28707. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28708. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28709. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28710. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28711. Failed writing message. Aborting connection.
  28712. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28713. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28714. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28715. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28716. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28717. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28718. Failed writing message. Aborting connection.
  28719. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28720. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28721. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28722. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28723. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28724. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28725. Failed writing message. Aborting connection.
  28726. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28727. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28728. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28729. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28730. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28731. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28732. Failed writing message. Aborting connection.
  28733. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28734. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28735. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28736. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28737. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28738. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28739. Failed writing message. Aborting connection.
  28740. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28741. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28742. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28743. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28744. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28745. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28746. Failed writing message. Aborting connection.
  28747. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28748. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28749. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28750. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28751. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28752. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28753. Failed writing message. Aborting connection.
  28754. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28755. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28756. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28757. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28758. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28759. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28760. Failed writing message. Aborting connection.
  28761. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28762. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28763. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28764. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28765. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28766. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28767. Failed writing message. Aborting connection.
  28768. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28769. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28770. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28771. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28772. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28773. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28774. Failed writing message. Aborting connection.
  28775. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28776. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28777. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28778. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28779. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28780. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28781. Failed writing message. Aborting connection.
  28782. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28783. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28784. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28785. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28786. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28787. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28788. Failed writing message. Aborting connection.
  28789. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28790. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28791. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28792. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28793. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28794. [00:26:03] Current: 783, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  28795. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28796. Failed writing message. Aborting connection.
  28797. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28798. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28799. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28800. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28801. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28802. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28803. Failed writing message. Aborting connection.
  28804. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28805. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28806. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28807. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28808. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28809. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28810. Failed writing message. Aborting connection.
  28811. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28812. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28813. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28814. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28815. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28816. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28817. Failed writing message. Aborting connection.
  28818. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28819. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28820. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28821. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28822. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28823. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28824. Failed writing message. Aborting connection.
  28825. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28826. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28827. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28828. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28829. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28830. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28831. Failed writing message. Aborting connection.
  28832. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28833. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28834. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28835. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28836. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28837. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28838. Failed writing message. Aborting connection.
  28839. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28840. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28841. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28842. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28843. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28844. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28845. Failed writing message. Aborting connection.
  28846. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28847. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28848. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28849. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28850. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28851. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28852. Failed writing message. Aborting connection.
  28853. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28854. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28855. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28856. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28857. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28858. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28859. Failed writing message. Aborting connection.
  28860. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28861. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28862. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28863. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28864. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28865. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28866. Failed writing message. Aborting connection.
  28867. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28868. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28869. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28870. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28871. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28872. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28873. Failed writing message. Aborting connection.
  28874. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28875. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28876. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28877. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28878. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28879. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28880. Failed writing message. Aborting connection.
  28881. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28882. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28883. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28884. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28885. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28886. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28887. Failed writing message. Aborting connection.
  28888. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28889. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28890. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28891. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28892. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28893. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28894. Failed writing message. Aborting connection.
  28895. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28896. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28897. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28898. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28899. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28900. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28901. Failed writing message. Aborting connection.
  28902. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28903. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28904. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28905. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28906. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28907. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28908. Failed writing message. Aborting connection.
  28909. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28910. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28911. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28912. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28913. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28914. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28915. Failed writing message. Aborting connection.
  28916. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28917. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28918. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28919. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28920. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28921. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28922. Failed writing message. Aborting connection.
  28923. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28924. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28925. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28926. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28927. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28928. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28929. Failed writing message. Aborting connection.
  28930. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28931. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28932. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28933. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28934. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28935. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28936. Failed writing message. Aborting connection.
  28937. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28938. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28939. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28940. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28941. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28942. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28943. Failed writing message. Aborting connection.
  28944. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28945. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28946. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28947. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28948. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28949. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28950. Failed writing message. Aborting connection.
  28951. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28952. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28953. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28954. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28955. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28956. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28957. Failed writing message. Aborting connection.
  28958. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28959. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28960. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28961. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28962. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28963. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28964. Failed writing message. Aborting connection.
  28965. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28966. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28967. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28968. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28969. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28970. [00:26:04] Current: 783, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  28971. [00:26:05] Current: 783, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  28972. [00:26:06] Current: 783, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  28973. [00:26:07] Current: 783, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  28974. [00:26:08] Current: 783, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  28975. [00:26:09] Current: 783, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  28976. [00:26:10] Current: 783, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  28977. [00:26:11] Current: 600, peak: 91541, connected: 0, disconnected: 183, rate: -183/s
  28978. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28979. Failed writing message. Aborting connection.
  28980. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28981. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28982. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28983. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28984. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28985. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28986. Failed writing message. Aborting connection.
  28987. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28988. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28989. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28990. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28991. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28992. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  28993. Failed writing message. Aborting connection.
  28994. System.InvalidOperationException: Writing is not allowed after writer was completed.
  28995. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  28996. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28997. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  28998. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  28999. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29000. Failed writing message. Aborting connection.
  29001. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29002. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29003. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29004. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29005. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29006. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29007. Failed writing message. Aborting connection.
  29008. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29009. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29010. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29011. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29012. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29013. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29014. Failed writing message. Aborting connection.
  29015. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29016. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29017. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29018. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29019. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29020. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29021. Failed writing message. Aborting connection.
  29022. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29023. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29024. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29025. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29026. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29027. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29028. Failed writing message. Aborting connection.
  29029. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29030. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29031. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29032. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29033. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29034. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29035. Failed writing message. Aborting connection.
  29036. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29037. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29038. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29039. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29040. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29041. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29042. Failed writing message. Aborting connection.
  29043. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29044. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29045. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29046. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29047. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29048. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29049. Failed writing message. Aborting connection.
  29050. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29051. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29052. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29053. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29054. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29055. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29056. Failed writing message. Aborting connection.
  29057. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29058. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29059. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29060. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29061. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29062. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29063. Failed writing message. Aborting connection.
  29064. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29065. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29066. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29067. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29068. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29069. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29070. Failed writing message. Aborting connection.
  29071. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29072. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29073. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29074. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29075. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29076. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29077. Failed writing message. Aborting connection.
  29078. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29079. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29080. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29081. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29082. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29083. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29084. Failed writing message. Aborting connection.
  29085. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29086. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29087. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29088. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29089. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29090. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29091. Failed writing message. Aborting connection.
  29092. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29093. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29094. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29095. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29096. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29097. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29098. Failed writing message. Aborting connection.
  29099. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29100. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29101. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29102. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29103. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29104. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29105. Failed writing message. Aborting connection.
  29106. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29107. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29108. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29109. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29110. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29111. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29112. Failed writing message. Aborting connection.
  29113. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29114. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29115. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29116. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29117. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29118. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29119. Failed writing message. Aborting connection.
  29120. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29121. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29122. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29123. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29124. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29125. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29126. Failed writing message. Aborting connection.
  29127. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29128. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29129. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29130. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29131. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29132. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29133. Failed writing message. Aborting connection.
  29134. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29135. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29136. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29137. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29138. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29139. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29140. Failed writing message. Aborting connection.
  29141. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29142. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29143. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29144. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29145. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29146. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29147. Failed writing message. Aborting connection.
  29148. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29149. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29150. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29151. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29152. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29153. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29154. Failed writing message. Aborting connection.
  29155. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29156. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29157. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29158. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29159. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29160. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29161. Failed writing message. Aborting connection.
  29162. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29163. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29164. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29165. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29166. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29167. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29168. Failed writing message. Aborting connection.
  29169. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29170. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29171. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29172. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29173. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29174. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29175. Failed writing message. Aborting connection.
  29176. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29177. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29178. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29179. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29180. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29181. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29182. Failed writing message. Aborting connection.
  29183. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29184. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29185. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29186. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29187. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29188. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29189. Failed writing message. Aborting connection.
  29190. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29191. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29192. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29193. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29194. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29195. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29196. Failed writing message. Aborting connection.
  29197. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29198. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29199. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29200. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29201. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29202. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29203. Failed writing message. Aborting connection.
  29204. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29205. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29206. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29207. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29208. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29209. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29210. Failed writing message. Aborting connection.
  29211. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29212. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29213. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29214. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29215. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29216. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29217. Failed writing message. Aborting connection.
  29218. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29219. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29220. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29221. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29222. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29223. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29224. Failed writing message. Aborting connection.
  29225. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29226. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29227. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29228. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29229. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29230. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29231. Failed writing message. Aborting connection.
  29232. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29233. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29234. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29235. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29236. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29237. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29238. Failed writing message. Aborting connection.
  29239. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29240. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29241. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29242. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29243. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29244. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29245. Failed writing message. Aborting connection.
  29246. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29247. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29248. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29249. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29250. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29251. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29252. Failed writing message. Aborting connection.
  29253. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29254. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29255. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29256. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29257. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29258. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29259. Failed writing message. Aborting connection.
  29260. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29261. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29262. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29263. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29264. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29265. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29266. Failed writing message. Aborting connection.
  29267. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29268. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29269. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29270. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29271. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29272. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29273. Failed writing message. Aborting connection.
  29274. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29275. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29276. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29277. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29278. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29279. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29280. Failed writing message. Aborting connection.
  29281. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29282. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29283. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29284. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29285. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29286. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29287. Failed writing message. Aborting connection.
  29288. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29289. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29290. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29291. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29292. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29293. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29294. Failed writing message. Aborting connection.
  29295. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29296. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29297. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29298. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29299. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29300. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29301. Failed writing message. Aborting connection.
  29302. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29303. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29304. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29305. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29306. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29307. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29308. Failed writing message. Aborting connection.
  29309. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29310. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29311. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29312. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29313. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29314. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29315. Failed writing message. Aborting connection.
  29316. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29317. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29318. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29319. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29320. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29321. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29322. Failed writing message. Aborting connection.
  29323. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29324. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29325. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29326. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29327. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29328. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29329. Failed writing message. Aborting connection.
  29330. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29331. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29332. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29333. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29334. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29335. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29336. Failed writing message. Aborting connection.
  29337. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29338. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29339. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29340. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29341. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29342. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29343. Failed writing message. Aborting connection.
  29344. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29345. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29346. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29347. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29348. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29349. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29350. Failed writing message. Aborting connection.
  29351. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29352. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29353. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29354. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29355. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29356. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29357. Failed writing message. Aborting connection.
  29358. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29359. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29360. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29361. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29362. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29363. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29364. Failed writing message. Aborting connection.
  29365. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29366. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29367. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29368. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29369. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29370. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29371. Failed writing message. Aborting connection.
  29372. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29373. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29374. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29375. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29376. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29377. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29378. Failed writing message. Aborting connection.
  29379. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29380. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29381. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29382. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29383. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29384. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29385. Failed writing message. Aborting connection.
  29386. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29387. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29388. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29389. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29390. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29391. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29392. Failed writing message. Aborting connection.
  29393. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29394. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29395. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29396. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29397. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29398. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29399. Failed writing message. Aborting connection.
  29400. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29401. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29402. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29403. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29404. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29405. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29406. Failed writing message. Aborting connection.
  29407. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29408. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29409. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29410. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29411. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29412. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29413. Failed writing message. Aborting connection.
  29414. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29415. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29416. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29417. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29418. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29419. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29420. Failed writing message. Aborting connection.
  29421. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29422. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29423. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29424. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29425. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29426. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29427. Failed writing message. Aborting connection.
  29428. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29429. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29430. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29431. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29432. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29433. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29434. Failed writing message. Aborting connection.
  29435. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29436. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29437. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29438. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29439. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29440. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29441. Failed writing message. Aborting connection.
  29442. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29443. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29444. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29445. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29446. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29447. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29448. Failed writing message. Aborting connection.
  29449. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29450. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29451. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29452. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29453. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29454. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29455. Failed writing message. Aborting connection.
  29456. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29457. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29458. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29459. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29460. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29461. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29462. Failed writing message. Aborting connection.
  29463. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29464. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29465. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29466. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29467. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29468. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29469. Failed writing message. Aborting connection.
  29470. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29471. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29472. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29473. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29474. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29475. [00:26:12] Current: 451, peak: 91541, connected: 0, disconnected: 149, rate: -149/s
  29476. [00:26:13] Current: 427, peak: 91541, connected: 0, disconnected: 24, rate: -24/s
  29477. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29478. Failed writing message. Aborting connection.
  29479. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29480. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29481. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29482. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29483. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29484. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29485. Failed writing message. Aborting connection.
  29486. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29487. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29488. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29489. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29490. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29491. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29492. Failed writing message. Aborting connection.
  29493. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29494. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29495. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29496. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29497. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29498. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29499. Failed writing message. Aborting connection.
  29500. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29501. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29502. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29503. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29504. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29505. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29506. Failed writing message. Aborting connection.
  29507. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29508. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29509. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29510. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29511. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29512. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29513. Failed writing message. Aborting connection.
  29514. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29515. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29516. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29517. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29518. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29519. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29520. Failed writing message. Aborting connection.
  29521. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29522. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29523. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29524. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29525. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29526. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29527. Failed writing message. Aborting connection.
  29528. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29529. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29530. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29531. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29532. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29533. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29534. Failed writing message. Aborting connection.
  29535. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29536. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29537. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29538. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29539. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29540. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29541. Failed writing message. Aborting connection.
  29542. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29543. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29544. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29545. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29546. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29547. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29548. Failed writing message. Aborting connection.
  29549. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29550. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29551. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29552. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29553. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29554. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29555. Failed writing message. Aborting connection.
  29556. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29557. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29558. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29559. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29560. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29561. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29562. Failed writing message. Aborting connection.
  29563. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29564. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29565. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29566. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29567. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29568. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29569. Failed writing message. Aborting connection.
  29570. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29571. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29572. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29573. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29574. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29575. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29576. Failed writing message. Aborting connection.
  29577. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29578. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29579. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29580. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29581. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29582. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29583. Failed writing message. Aborting connection.
  29584. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29585. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29586. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29587. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29588. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29589. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29590. Failed writing message. Aborting connection.
  29591. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29592. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29593. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29594. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29595. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29596. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29597. Failed writing message. Aborting connection.
  29598. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29599. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29600. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29601. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29602. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29603. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29604. Failed writing message. Aborting connection.
  29605. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29606. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29607. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29608. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29609. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29610. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29611. Failed writing message. Aborting connection.
  29612. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29613. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29614. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29615. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29616. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29617. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29618. Failed writing message. Aborting connection.
  29619. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29620. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29621. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29622. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29623. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29624. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29625. Failed writing message. Aborting connection.
  29626. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29627. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29628. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29629. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29630. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29631. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29632. Failed writing message. Aborting connection.
  29633. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29634. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29635. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29636. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29637. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29638. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29639. Failed writing message. Aborting connection.
  29640. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29641. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29642. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29643. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29644. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29645. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29646. Failed writing message. Aborting connection.
  29647. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29648. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29649. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29650. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29651. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29652. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29653. Failed writing message. Aborting connection.
  29654. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29655. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29656. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29657. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29658. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29659. [00:26:14] Current: 427, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  29660. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29661. Failed writing message. Aborting connection.
  29662. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29663. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29664. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29665. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29666. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29667. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29668. Failed writing message. Aborting connection.
  29669. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29670. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29671. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29672. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29673. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29674. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29675. Failed writing message. Aborting connection.
  29676. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29677. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29678. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29679. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29680. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29681. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29682. Failed writing message. Aborting connection.
  29683. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29684. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29685. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29686. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29687. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29688. [00:26:15] Current: 427, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  29689. [00:26:16] Current: 427, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  29690. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29691. Failed writing message. Aborting connection.
  29692. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29693. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29694. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29695. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29696. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29697. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29698. Failed writing message. Aborting connection.
  29699. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29700. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29701. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29702. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29703. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29704. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29705. Failed writing message. Aborting connection.
  29706. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29707. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29708. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29709. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29710. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29711. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29712. Failed writing message. Aborting connection.
  29713. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29714. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29715. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29716. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29717. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29718. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29719. Failed writing message. Aborting connection.
  29720. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29721. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29722. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29723. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29724. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29725. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29726. Failed writing message. Aborting connection.
  29727. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29728. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29729. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29730. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29731. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29732. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29733. Failed writing message. Aborting connection.
  29734. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29735. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29736. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29737. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29738. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29739. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29740. Failed writing message. Aborting connection.
  29741. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29742. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29743. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29744. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29745. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29746. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29747. Failed writing message. Aborting connection.
  29748. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29749. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29750. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29751. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29752. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29753. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29754. Failed writing message. Aborting connection.
  29755. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29756. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29757. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29758. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29759. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29760. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29761. Failed writing message. Aborting connection.
  29762. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29763. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29764. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29765. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29766. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29767. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29768. Failed writing message. Aborting connection.
  29769. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29770. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29771. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29772. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29773. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29774. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29775. Failed writing message. Aborting connection.
  29776. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29777. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29778. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29779. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29780. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29781. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29782. Failed writing message. Aborting connection.
  29783. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29784. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29785. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29786. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29787. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29788. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29789. Failed writing message. Aborting connection.
  29790. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29791. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29792. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29793. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29794. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29795. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29796. Failed writing message. Aborting connection.
  29797. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29798. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29799. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29800. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29801. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29802. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29803. Failed writing message. Aborting connection.
  29804. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29805. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29806. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29807. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29808. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29809. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29810. Failed writing message. Aborting connection.
  29811. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29812. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29813. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29814. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29815. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29816. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29817. Failed writing message. Aborting connection.
  29818. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29819. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29820. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29821. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29822. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29823. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29824. Failed writing message. Aborting connection.
  29825. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29826. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29827. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29828. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29829. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29830. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29831. Failed writing message. Aborting connection.
  29832. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29833. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29834. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29835. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29836. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29837. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29838. Failed writing message. Aborting connection.
  29839. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29840. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29841. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29842. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29843. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29844. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29845. Failed writing message. Aborting connection.
  29846. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29847. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29848. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29849. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29850. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29851. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29852. Failed writing message. Aborting connection.
  29853. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29854. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29855. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29856. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29857. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29858. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29859. Failed writing message. Aborting connection.
  29860. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29861. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29862. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29863. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29864. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29865. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29866. Failed writing message. Aborting connection.
  29867. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29868. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29869. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29870. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29871. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29872. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29873. Failed writing message. Aborting connection.
  29874. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29875. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29876. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29877. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29878. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29879. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29880. Failed writing message. Aborting connection.
  29881. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29882. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29883. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29884. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29885. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29886. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29887. Failed writing message. Aborting connection.
  29888. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29889. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29890. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29891. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29892. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29893. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29894. Failed writing message. Aborting connection.
  29895. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29896. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29897. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29898. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29899. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29900. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29901. Failed writing message. Aborting connection.
  29902. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29903. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29904. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29905. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29906. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29907. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29908. Failed writing message. Aborting connection.
  29909. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29910. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29911. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29912. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29913. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29914. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29915. Failed writing message. Aborting connection.
  29916. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29917. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29918. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29919. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29920. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29921. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29922. Failed writing message. Aborting connection.
  29923. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29924. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29925. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29926. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29927. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29928. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29929. Failed writing message. Aborting connection.
  29930. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29931. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29932. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29933. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29934. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29935. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29936. Failed writing message. Aborting connection.
  29937. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29938. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29939. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29940. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29941. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29942. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29943. Failed writing message. Aborting connection.
  29944. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29945. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29946. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29947. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29948. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29949. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29950. Failed writing message. Aborting connection.
  29951. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29952. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29953. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29954. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29955. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29956. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29957. Failed writing message. Aborting connection.
  29958. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29959. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29960. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29961. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29962. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29963. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29964. Failed writing message. Aborting connection.
  29965. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29966. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29967. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29968. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29969. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29970. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29971. Failed writing message. Aborting connection.
  29972. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29973. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29974. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29975. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29976. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29977. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29978. Failed writing message. Aborting connection.
  29979. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29980. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29981. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29982. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29983. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29984. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29985. Failed writing message. Aborting connection.
  29986. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29987. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29988. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29989. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29990. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29991. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29992. Failed writing message. Aborting connection.
  29993. System.InvalidOperationException: Writing is not allowed after writer was completed.
  29994. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  29995. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29996. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  29997. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  29998. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  29999. Failed writing message. Aborting connection.
  30000. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30001. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30002. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30003. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30004. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30005. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30006. Failed writing message. Aborting connection.
  30007. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30008. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30009. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30010. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30011. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30012. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30013. Failed writing message. Aborting connection.
  30014. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30015. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30016. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30017. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30018. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30019. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30020. Failed writing message. Aborting connection.
  30021. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30022. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30023. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30024. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30025. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30026. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30027. Failed writing message. Aborting connection.
  30028. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30029. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30030. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30031. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30032. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30033. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30034. Failed writing message. Aborting connection.
  30035. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30036. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30037. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30038. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30039. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30040. [00:26:17] Current: 427, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  30041. [00:26:18] Current: 426, peak: 91541, connected: 0, disconnected: 1, rate: -1/s
  30042. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30043. Failed writing message. Aborting connection.
  30044. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30045. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30046. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30047. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30048. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30049. [00:26:19] Current: 355, peak: 91541, connected: 0, disconnected: 71, rate: -71/s
  30050. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30051. Failed writing message. Aborting connection.
  30052. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30053. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30054. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30055. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30056. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30057. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30058. Failed writing message. Aborting connection.
  30059. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30060. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30061. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30062. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30063. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30064. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30065. Failed writing message. Aborting connection.
  30066. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30067. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30068. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30069. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30070. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30071. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30072. Failed writing message. Aborting connection.
  30073. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30074. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30075. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30076. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30077. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30078. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30079. Failed writing message. Aborting connection.
  30080. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30081. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30082. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30083. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30084. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30085. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30086. Failed writing message. Aborting connection.
  30087. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30088. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30089. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30090. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30091. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30092. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30093. Failed writing message. Aborting connection.
  30094. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30095. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30096. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30097. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30098. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30099. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30100. Failed writing message. Aborting connection.
  30101. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30102. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30103. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30104. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30105. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30106. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30107. Failed writing message. Aborting connection.
  30108. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30109. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30110. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30111. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30112. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30113. [00:26:20] Current: 355, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  30114. [00:26:21] Current: 355, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  30115. [00:26:22] Current: 355, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  30116. [00:26:23] Current: 355, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  30117. [00:26:24] Current: 316, peak: 91541, connected: 0, disconnected: 39, rate: -39/s
  30118. [00:26:25] Current: 316, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  30119. [00:26:26] Current: 316, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  30120. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30121. Failed writing message. Aborting connection.
  30122. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30123. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30124. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30125. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30126. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30127. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30128. Failed writing message. Aborting connection.
  30129. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30130. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30131. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30132. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30133. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30134. [00:26:27] Current: 119, peak: 91541, connected: 0, disconnected: 197, rate: -197/s
  30135. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30136. Failed writing message. Aborting connection.
  30137. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30138. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30139. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30140. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30141. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30142. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30143. Failed writing message. Aborting connection.
  30144. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30145. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30146. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30147. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30148. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30149. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30150. Failed writing message. Aborting connection.
  30151. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30152. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30153. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30154. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30155. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30156. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30157. Failed writing message. Aborting connection.
  30158. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30159. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30160. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30161. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30162. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30163. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30164. Failed writing message. Aborting connection.
  30165. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30166. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30167. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30168. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30169. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30170. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30171. Failed writing message. Aborting connection.
  30172. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30173. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30174. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30175. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30176. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30177. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30178. Failed writing message. Aborting connection.
  30179. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30180. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30181. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30182. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30183. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30184. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30185. Failed writing message. Aborting connection.
  30186. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30187. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30188. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30189. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30190. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30191. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30192. Failed writing message. Aborting connection.
  30193. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30194. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30195. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30196. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30197. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30198. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30199. Failed writing message. Aborting connection.
  30200. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30201. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30202. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30203. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30204. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30205. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30206. Failed writing message. Aborting connection.
  30207. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30208. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30209. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30210. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30211. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30212. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30213. Failed writing message. Aborting connection.
  30214. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30215. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30216. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30217. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30218. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30219. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30220. Failed writing message. Aborting connection.
  30221. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30222. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30223. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30224. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30225. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30226. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30227. Failed writing message. Aborting connection.
  30228. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30229. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30230. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30231. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30232. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30233. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30234. Failed writing message. Aborting connection.
  30235. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30236. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30237. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30238. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30239. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30240. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30241. Failed writing message. Aborting connection.
  30242. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30243. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30244. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30245. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30246. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30247. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30248. Failed writing message. Aborting connection.
  30249. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30250. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30251. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30252. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30253. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30254. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30255. Failed writing message. Aborting connection.
  30256. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30257. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30258. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30259. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30260. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30261. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30262. Failed writing message. Aborting connection.
  30263. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30264. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30265. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30266. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30267. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30268. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30269. Failed writing message. Aborting connection.
  30270. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30271. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30272. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30273. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30274. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30275. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30276. Failed writing message. Aborting connection.
  30277. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30278. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30279. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30280. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30281. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30282. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30283. Failed writing message. Aborting connection.
  30284. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30285. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30286. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30287. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30288. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30289. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30290. Failed writing message. Aborting connection.
  30291. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30292. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30293. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30294. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30295. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30296. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30297. Failed writing message. Aborting connection.
  30298. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30299. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30300. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30301. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30302. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30303. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30304. Failed writing message. Aborting connection.
  30305. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30306. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30307. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30308. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30309. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30310. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30311. Failed writing message. Aborting connection.
  30312. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30313. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30314. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30315. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30316. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30317. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30318. Failed writing message. Aborting connection.
  30319. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30320. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30321. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30322. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30323. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30324. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30325. Failed writing message. Aborting connection.
  30326. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30327. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30328. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30329. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30330. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30331. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30332. Failed writing message. Aborting connection.
  30333. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30334. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30335. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30336. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30337. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30338. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30339. Failed writing message. Aborting connection.
  30340. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30341. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30342. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30343. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30344. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30345. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30346. Failed writing message. Aborting connection.
  30347. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30348. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30349. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30350. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30351. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30352. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30353. Failed writing message. Aborting connection.
  30354. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30355. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30356. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30357. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30358. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30359. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30360. Failed writing message. Aborting connection.
  30361. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30362. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30363. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30364. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30365. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30366. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30367. Failed writing message. Aborting connection.
  30368. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30369. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30370. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30371. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30372. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30373. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30374. Failed writing message. Aborting connection.
  30375. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30376. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30377. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30378. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30379. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30380. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30381. Failed writing message. Aborting connection.
  30382. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30383. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30384. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30385. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30386. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30387. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30388. Failed writing message. Aborting connection.
  30389. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30390. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30391. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30392. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30393. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30394. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30395. Failed writing message. Aborting connection.
  30396. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30397. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30398. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30399. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30400. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30401. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30402. Failed writing message. Aborting connection.
  30403. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30404. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30405. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30406. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30407. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30408. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30409. Failed writing message. Aborting connection.
  30410. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30411. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30412. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30413. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30414. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30415. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30416. Failed writing message. Aborting connection.
  30417. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30418. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30419. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30420. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30421. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30422. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30423. Failed writing message. Aborting connection.
  30424. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30425. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30426. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30427. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30428. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30429. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30430. Failed writing message. Aborting connection.
  30431. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30432. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30433. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30434. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30435. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30436. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30437. Failed writing message. Aborting connection.
  30438. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30439. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30440. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30441. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30442. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30443. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30444. Failed writing message. Aborting connection.
  30445. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30446. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30447. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30448. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30449. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30450. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30451. Failed writing message. Aborting connection.
  30452. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30453. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30454. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30455. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30456. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30457. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30458. Failed writing message. Aborting connection.
  30459. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30460. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30461. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30462. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30463. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30464. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30465. Failed writing message. Aborting connection.
  30466. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30467. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30468. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30469. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30470. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30471. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30472. Failed writing message. Aborting connection.
  30473. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30474. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30475. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30476. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30477. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30478. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30479. Failed writing message. Aborting connection.
  30480. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30481. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30482. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30483. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30484. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30485. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30486. Failed writing message. Aborting connection.
  30487. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30488. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30489. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30490. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30491. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30492. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30493. Failed writing message. Aborting connection.
  30494. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30495. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30496. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30497. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30498. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30499. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30500. Failed writing message. Aborting connection.
  30501. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30502. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30503. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30504. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30505. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30506. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30507. Failed writing message. Aborting connection.
  30508. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30509. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30510. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30511. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30512. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30513. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30514. Failed writing message. Aborting connection.
  30515. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30516. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30517. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30518. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30519. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30520. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30521. Failed writing message. Aborting connection.
  30522. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30523. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30524. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30525. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30526. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30527. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30528. Failed writing message. Aborting connection.
  30529. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30530. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30531. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30532. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30533. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30534. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30535. Failed writing message. Aborting connection.
  30536. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30537. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30538. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30539. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30540. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30541. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30542. Failed writing message. Aborting connection.
  30543. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30544. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30545. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30546. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30547. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30548. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30549. Failed writing message. Aborting connection.
  30550. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30551. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30552. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30553. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30554. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30555. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30556. Failed writing message. Aborting connection.
  30557. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30558. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30559. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30560. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30561. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30562. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30563. Failed writing message. Aborting connection.
  30564. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30565. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30566. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30567. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30568. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30569. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30570. Failed writing message. Aborting connection.
  30571. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30572. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30573. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30574. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30575. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30576. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30577. Failed writing message. Aborting connection.
  30578. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30579. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30580. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30581. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30582. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30583. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30584. Failed writing message. Aborting connection.
  30585. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30586. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30587. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30588. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30589. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30590. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30591. Failed writing message. Aborting connection.
  30592. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30593. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30594. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30595. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30596. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30597. [00:26:28] Current: 110, peak: 91541, connected: 0, disconnected: 9, rate: -9/s
  30598. [00:26:29] Current: 110, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  30599. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30600. Failed writing message. Aborting connection.
  30601. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30602. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30603. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30604. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30605. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30606. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30607. Failed writing message. Aborting connection.
  30608. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30609. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30610. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30611. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30612. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30613. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30614. Failed writing message. Aborting connection.
  30615. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30616. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30617. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30618. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30619. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30620. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30621. Failed writing message. Aborting connection.
  30622. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30623. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30624. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30625. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30626. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30627. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30628. Failed writing message. Aborting connection.
  30629. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30630. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30631. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30632. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30633. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30634. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30635. Failed writing message. Aborting connection.
  30636. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30637. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30638. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30639. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30640. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30641. [00:26:30] Current: 95, peak: 91541, connected: 0, disconnected: 15, rate: -15/s
  30642. [00:26:31] Current: 78, peak: 91541, connected: 0, disconnected: 17, rate: -17/s
  30643. [00:26:32] Current: 16, peak: 91541, connected: 0, disconnected: 62, rate: -62/s
  30644. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30645. Failed writing message. Aborting connection.
  30646. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30647. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30648. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30649. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30650. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30651. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30652. Failed writing message. Aborting connection.
  30653. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30654. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30655. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30656. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30657. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30658. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30659. Failed writing message. Aborting connection.
  30660. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30661. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30662. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30663. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30664. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30665. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30666. Failed writing message. Aborting connection.
  30667. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30668. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30669. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30670. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30671. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30672. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30673. Failed writing message. Aborting connection.
  30674. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30675. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30676. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30677. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30678. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30679. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30680. Failed writing message. Aborting connection.
  30681. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30682. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30683. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30684. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30685. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30686. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30687. Failed writing message. Aborting connection.
  30688. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30689. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30690. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30691. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30692. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30693. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30694. Failed writing message. Aborting connection.
  30695. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30696. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30697. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30698. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30699. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30700. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30701. Failed writing message. Aborting connection.
  30702. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30703. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30704. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30705. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30706. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30707. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30708. Failed writing message. Aborting connection.
  30709. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30710. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30711. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30712. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30713. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30714. [00:26:33] Current: 16, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  30715. [00:26:34] Current: 16, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  30716. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30717. Failed writing message. Aborting connection.
  30718. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30719. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30720. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30721. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30722. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30723. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30724. Failed writing message. Aborting connection.
  30725. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30726. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30727. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30728. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30729. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30730. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30731. Failed writing message. Aborting connection.
  30732. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30733. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30734. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30735. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30736. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30737. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30738. Failed writing message. Aborting connection.
  30739. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30740. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30741. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30742. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30743. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30744. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30745. Failed writing message. Aborting connection.
  30746. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30747. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30748. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30749. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30750. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30751. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30752. Failed writing message. Aborting connection.
  30753. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30754. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30755. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30756. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30757. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30758. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30759. Failed writing message. Aborting connection.
  30760. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30761. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30762. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30763. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30764. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30765. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30766. Failed writing message. Aborting connection.
  30767. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30768. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30769. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30770. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30771. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30772. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30773. Failed writing message. Aborting connection.
  30774. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30775. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30776. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30777. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30778. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30779. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30780. Failed writing message. Aborting connection.
  30781. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30782. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30783. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30784. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30785. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30786. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30787. Failed writing message. Aborting connection.
  30788. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30789. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30790. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30791. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30792. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30793. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30794. Failed writing message. Aborting connection.
  30795. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30796. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30797. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30798. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30799. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30800. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30801. Failed writing message. Aborting connection.
  30802. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30803. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30804. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30805. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30806. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30807. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30808. Failed writing message. Aborting connection.
  30809. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30810. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30811. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30812. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30813. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30814. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30815. Failed writing message. Aborting connection.
  30816. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30817. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30818. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30819. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30820. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30821. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30822. Failed writing message. Aborting connection.
  30823. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30824. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30825. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30826. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30827. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30828. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30829. Failed writing message. Aborting connection.
  30830. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30831. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30832. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30833. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30834. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30835. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30836. Failed writing message. Aborting connection.
  30837. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30838. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30839. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30840. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30841. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30842. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30843. Failed writing message. Aborting connection.
  30844. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30845. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30846. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30847. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30848. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30849. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30850. Failed writing message. Aborting connection.
  30851. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30852. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30853. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30854. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30855. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30856. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30857. Failed writing message. Aborting connection.
  30858. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30859. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30860. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30861. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30862. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30863. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30864. Failed writing message. Aborting connection.
  30865. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30866. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30867. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30868. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30869. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30870. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30871. Failed writing message. Aborting connection.
  30872. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30873. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30874. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30875. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30876. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30877. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30878. Failed writing message. Aborting connection.
  30879. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30880. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30881. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30882. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30883. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30884. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30885. Failed writing message. Aborting connection.
  30886. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30887. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30888. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30889. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30890. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30891. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30892. Failed writing message. Aborting connection.
  30893. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30894. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30895. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30896. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30897. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30898. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30899. Failed writing message. Aborting connection.
  30900. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30901. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30902. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30903. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30904. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30905. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30906. Failed writing message. Aborting connection.
  30907. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30908. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30909. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30910. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30911. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30912. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30913. Failed writing message. Aborting connection.
  30914. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30915. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30916. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30917. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30918. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30919. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30920. Failed writing message. Aborting connection.
  30921. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30922. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30923. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30924. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30925. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30926. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30927. Failed writing message. Aborting connection.
  30928. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30929. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30930. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30931. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30932. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30933. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30934. Failed writing message. Aborting connection.
  30935. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30936. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30937. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30938. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30939. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30940. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30941. Failed writing message. Aborting connection.
  30942. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30943. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30944. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30945. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30946. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30947. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30948. Failed writing message. Aborting connection.
  30949. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30950. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30951. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30952. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30953. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30954. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30955. Failed writing message. Aborting connection.
  30956. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30957. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30958. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30959. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30960. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30961. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30962. Failed writing message. Aborting connection.
  30963. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30964. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30965. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30966. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30967. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30968. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30969. Failed writing message. Aborting connection.
  30970. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30971. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30972. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30973. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30974. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30975. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30976. Failed writing message. Aborting connection.
  30977. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30978. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30979. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30980. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30981. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30982. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30983. Failed writing message. Aborting connection.
  30984. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30985. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30986. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30987. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30988. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30989. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30990. Failed writing message. Aborting connection.
  30991. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30992. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  30993. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30994. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  30995. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  30996. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  30997. Failed writing message. Aborting connection.
  30998. System.InvalidOperationException: Writing is not allowed after writer was completed.
  30999. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  31000. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  31001. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  31002. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  31003. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  31004. Failed writing message. Aborting connection.
  31005. System.InvalidOperationException: Writing is not allowed after writer was completed.
  31006. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  31007. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  31008. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  31009. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  31010. [00:26:35] Current: 16, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31011. [00:26:36] Current: 16, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31012. [00:26:37] Current: 16, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31013. [00:26:38] Current: 16, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31014. [00:26:39] Current: 16, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31015. [00:26:40] Current: 16, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31016. [00:26:41] Current: 16, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31017. [00:26:42] Current: 8, peak: 91541, connected: 0, disconnected: 8, rate: -8/s
  31018. [00:26:43] Current: 2, peak: 91541, connected: 0, disconnected: 6, rate: -6/s
  31019. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  31020. Failed writing message. Aborting connection.
  31021. System.InvalidOperationException: Writing is not allowed after writer was completed.
  31022. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  31023. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  31024. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  31025. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  31026. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  31027. Failed writing message. Aborting connection.
  31028. System.InvalidOperationException: Writing is not allowed after writer was completed.
  31029. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  31030. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  31031. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  31032. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  31033. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  31034. Failed writing message. Aborting connection.
  31035. System.InvalidOperationException: Writing is not allowed after writer was completed.
  31036. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  31037. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  31038. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  31039. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  31040. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  31041. Failed writing message. Aborting connection.
  31042. System.InvalidOperationException: Writing is not allowed after writer was completed.
  31043. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  31044. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  31045. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  31046. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  31047. [00:26:44] Current: 0, peak: 91541, connected: 0, disconnected: 2, rate: -2/s
  31048. [00:26:45] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31049. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  31050. Failed writing message. Aborting connection.
  31051. System.InvalidOperationException: Writing is not allowed after writer was completed.
  31052. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  31053. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  31054. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  31055. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  31056. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  31057. Failed writing message. Aborting connection.
  31058. System.InvalidOperationException: Writing is not allowed after writer was completed.
  31059. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  31060. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  31061. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  31062. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  31063. [00:26:46] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31064. [00:26:47] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31065. [00:26:48] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31066. [00:26:49] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31067. [00:26:50] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31068. [00:26:51] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31069. [00:26:52] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31070. [00:26:53] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31071. [00:26:54] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31072. [00:26:55] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31073. [00:26:56] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31074. [00:26:57] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31075. [00:26:58] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31076. [00:26:59] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31077. [00:27:00] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31078. [00:27:01] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31079. [00:27:02] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31080. [00:27:03] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31081. [00:27:04] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31082. [00:27:05] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31083. [00:27:06] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31084. [00:27:07] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31085. [00:27:08] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31086. [00:27:09] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31087. [00:27:10] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31088. [00:27:11] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31089. [00:27:12] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31090. [00:27:13] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31091. [00:27:14] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31092. [00:27:15] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31093. [00:27:16] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31094. [00:27:17] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31095. [00:27:18] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31096. [00:27:19] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31097. [00:27:20] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31098. [00:27:21] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31099. [00:27:22] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31100. [00:27:23] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31101. [00:27:24] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31102. [00:27:25] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31103. [00:27:26] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31104. [00:27:27] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31105. [00:27:28] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31106. [00:27:29] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31107. [00:27:30] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31108. [00:27:31] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31109. [00:27:32] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31110. [00:27:33] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31111. [00:27:34] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31112. [00:27:35] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31113. [00:27:36] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31114. [00:27:37] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31115. [00:27:38] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31116. [00:27:39] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31117. [00:27:40] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31118. [00:27:41] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31119. [00:27:42] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31120. [00:27:43] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31121. [00:27:44] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31122. [00:27:45] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31123. [00:27:46] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31124. [00:27:47] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31125. [00:27:48] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31126. [00:27:49] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31127. [00:27:50] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31128. [00:27:51] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31129. [00:27:52] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31130. [00:27:53] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31131. [00:27:54] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31132. [00:27:55] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31133. [00:27:56] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31134. [00:27:57] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31135. [00:27:58] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31136. [00:27:59] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31137. [00:28:00] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31138. [00:28:01] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31139. [00:28:02] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31140. [00:28:03] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31141. [00:28:04] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31142. [00:28:05] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31143. [00:28:06] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31144. [00:28:07] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31145. [00:28:08] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31146. [00:28:09] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31147. [00:28:10] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31148. [00:28:11] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31149. [00:28:12] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31150. [00:28:13] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31151. [00:28:14] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31152. [00:28:15] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31153. [00:28:16] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31154. [00:28:17] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31155. [00:28:18] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31156. [00:28:19] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31157. [00:28:20] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31158. [00:28:21] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31159. [00:28:22] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31160. [00:28:23] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31161. [00:28:24] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31162. [00:28:25] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31163. [00:28:26] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31164. [00:28:27] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31165. [00:28:28] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31166. [00:28:29] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31167. [00:28:30] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31168. [00:28:31] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31169. [00:28:32] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31170. [00:28:33] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31171. [00:28:34] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31172. [00:28:35] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31173. [00:28:36] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31174. [00:28:37] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31175. [00:28:38] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31176. [00:28:39] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31177. [00:28:40] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31178. [00:28:41] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31179. [00:28:42] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31180. [00:28:43] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31181. [00:28:44] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31182. [00:28:45] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31183. [00:28:46] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31184. [00:28:47] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31185. [00:28:48] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31186. [00:28:49] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31187. [00:28:50] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31188. [00:28:51] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31189. [00:28:52] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31190. [00:28:53] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31191. [00:28:54] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31192. [00:28:55] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31193. [00:28:56] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31194. [00:28:57] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31195. [00:28:58] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31196. [00:28:59] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31197. [00:29:00] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31198. [00:29:01] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31199. [00:29:02] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31200. [00:29:03] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31201. [00:29:04] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31202. [00:29:05] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31203. [00:29:06] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31204. [00:29:07] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31205. [00:29:08] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31206. [00:29:09] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31207. [00:29:10] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31208. [00:29:11] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31209. [00:29:12] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31210. [00:29:13] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31211. [00:29:14] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31212. [00:29:15] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31213. [00:29:16] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31214. [00:29:17] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31215. [00:29:18] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31216. [00:29:19] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31217. [00:29:20] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31218. [00:29:21] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31219. [00:29:22] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31220. [00:29:23] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31221. [00:29:24] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31222. [00:29:25] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31223. [00:29:26] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31224. [00:29:27] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31225. [00:29:28] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31226. [00:29:29] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31227. [00:29:30] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31228. [00:29:31] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31229. [00:29:32] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31230. [00:29:33] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31231. [00:29:34] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31232. [00:29:35] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31233. [00:29:36] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31234. [00:29:37] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31235. [00:29:38] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31236. [00:29:39] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31237. [00:29:40] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31238. [00:29:41] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31239. [00:29:42] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31240. [00:29:43] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31241. [00:29:44] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31242. [00:29:45] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31243. [00:29:46] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31244. [00:29:47] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31245. [00:29:48] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31246. [00:29:49] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31247. [00:29:50] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31248. [00:29:51] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31249. [00:29:52] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31250. [00:29:53] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31251. [00:29:54] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31252. [00:29:55] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31253. [00:29:56] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31254. [00:29:57] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31255. [00:29:58] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
  31256. [00:29:59] Current: 0, peak: 91541, connected: 0, disconnected: 0, rate: 0/s
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