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  1. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines [-] Database connection was found disconnected; reconnecting: oslo_db.exception.DBConnectionError: (pymysql.err.OperationalError) (2013, 'Lost connection to MySQL server during query')
  2. [SQL: SELECT 1]
  3. (Background on this error at: http://sqlalche.me/e/e3q8)
  4. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines Traceback (most recent call last):
  5. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1249, in _execute_context
  6. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines cursor, statement, parameters, context
  7. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/sqlalchemy/engine/default.py", line 552, in do_execute
  8. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines cursor.execute(statement, parameters)
  9. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/pymysql/cursors.py", line 170, in execute
  10. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines result = self._query(query)
  11. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/pymysql/cursors.py", line 328, in _query
  12. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines conn.query(q)
  13. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/pymysql/connections.py", line 517, in query
  14. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines self._affected_rows = self._read_query_result(unbuffered=unbuffered)
  15. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/pymysql/connections.py", line 732, in _read_query_result
  16. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines result.read()
  17. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/pymysql/connections.py", line 1075, in read
  18. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines first_packet = self.connection._read_packet()
  19. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/pymysql/connections.py", line 657, in _read_packet
  20. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines packet_header = self._read_bytes(4)
  21. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/pymysql/connections.py", line 707, in _read_bytes
  22. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines CR.CR_SERVER_LOST, "Lost connection to MySQL server during query")
  23. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines pymysql.err.OperationalError: (2013, 'Lost connection to MySQL server during query')
  24. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines
  25. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines The above exception was the direct cause of the following exception:
  26. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines
  27. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines Traceback (most recent call last):
  28. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/oslo_db/sqlalchemy/engines.py", line 73, in _connect_ping_listener
  29. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines connection.scalar(select([1]))
  30. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 920, in scalar
  31. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines return self.execute(object_, *multiparams, **params).scalar()
  32. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 988, in execute
  33. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines return meth(self, multiparams, params)
  34. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/sqlalchemy/sql/elements.py", line 287, in _execute_on_connection
  35. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines return connection._execute_clauseelement(self, multiparams, params)
  36. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1107, in _execute_clauseelement
  37. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines distilled_params,
  38. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1253, in _execute_context
  39. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines e, statement, parameters, cursor, context
  40. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1471, in _handle_dbapi_exception
  41. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines util.raise_from_cause(newraise, exc_info)
  42. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/sqlalchemy/util/compat.py", line 398, in raise_from_cause
  43. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines reraise(type(exception), exception, tb=exc_tb, cause=cause)
  44. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/sqlalchemy/util/compat.py", line 152, in reraise
  45. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines raise value.with_traceback(tb)
  46. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1249, in _execute_context
  47. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines cursor, statement, parameters, context
  48. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/sqlalchemy/engine/default.py", line 552, in do_execute
  49. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines cursor.execute(statement, parameters)
  50. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/pymysql/cursors.py", line 170, in execute
  51. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines result = self._query(query)
  52. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/pymysql/cursors.py", line 328, in _query
  53. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines conn.query(q)
  54. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/pymysql/connections.py", line 517, in query
  55. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines self._affected_rows = self._read_query_result(unbuffered=unbuffered)
  56. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/pymysql/connections.py", line 732, in _read_query_result
  57. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines result.read()
  58. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/pymysql/connections.py", line 1075, in read
  59. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines first_packet = self.connection._read_packet()
  60. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/pymysql/connections.py", line 657, in _read_packet
  61. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines packet_header = self._read_bytes(4)
  62. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines File "/var/lib/kolla/venv/lib/python3.6/site-packages/pymysql/connections.py", line 707, in _read_bytes
  63. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines CR.CR_SERVER_LOST, "Lost connection to MySQL server during query")
  64. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines oslo_db.exception.DBConnectionError: (pymysql.err.OperationalError) (2013, 'Lost connection to MySQL server during query')
  65. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines [SQL: SELECT 1]
  66. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines (Background on this error at: http://sqlalche.me/e/e3q8)
  67. 2020-01-22 21:02:04.632 21 ERROR oslo_db.sqlalchemy.engines
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