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Standard_D2s_v3

staff0rd May 31st, 2019 87 Never
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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)