2026-06-10 08:39:33.725 2 INFO cinder.cmd.backup [-] Backup running with 1 processes. 2026-06-10 08:39:33.725 2 DEBUG oslo_concurrency.lockutils [-] Acquired lock "singleton_lock" lock /usr/lib/python3.9/site-packages/oslo_concurrency/lockutils.py:266 2026-06-10 08:39:33.726 2 DEBUG oslo_concurrency.lockutils [-] Releasing lock "singleton_lock" lock /usr/lib/python3.9/site-packages/oslo_concurrency/lockutils.py:282 2026-06-10 08:39:33.798 2 WARNING oslo_db.sqlalchemy.engines [req-d9f7cc33-c34d-4d98-802b-d77b8db30261 - - - - -] SQL connection failed. -1 attempts left.: oslo_db.exception.DBConnectionError: (pymysql.err.OperationalError) (2013, 'Lost connection to MySQL server during query') 2026-06-10 08:39:43.810 2 WARNING oslo_db.sqlalchemy.engines [req-d9f7cc33-c34d-4d98-802b-d77b8db30261 - - - - -] SQL connection failed. -2 attempts left.: oslo_db.exception.DBConnectionError: (pymysql.err.OperationalError) (2013, 'Lost connection to MySQL server during query') 2026-06-10 08:39:53.824 2 WARNING oslo_db.sqlalchemy.engines [req-d9f7cc33-c34d-4d98-802b-d77b8db30261 - - - - -] SQL connection failed. -3 attempts left.: oslo_db.exception.DBConnectionError: (pymysql.err.OperationalError) (2013, 'Lost connection to MySQL server during query') 2026-06-10 08:40:03.838 2 WARNING oslo_db.sqlalchemy.engines [req-d9f7cc33-c34d-4d98-802b-d77b8db30261 - - - - -] SQL connection failed. -4 attempts left.: oslo_db.exception.DBConnectionError: (pymysql.err.OperationalError) (2013, 'Lost connection to MySQL server during query') 2026-06-10 08:40:13.849 2 WARNING oslo_db.sqlalchemy.engines [req-d9f7cc33-c34d-4d98-802b-d77b8db30261 - - - - -] SQL connection failed. -5 attempts left.: oslo_db.exception.DBConnectionError: (pymysql.err.OperationalError) (2013, 'Lost connection to MySQL server during query') 2026-06-10 08:40:23.862 2 WARNING oslo_db.sqlalchemy.engines [req-d9f7cc33-c34d-4d98-802b-d77b8db30261 - - - - -] SQL connection failed. -6 attempts left.: oslo_db.exception.DBConnectionError: (pymysql.err.OperationalError) (2013, 'Lost connection to MySQL server during query') 2026-06-10 08:40:33.876 2 WARNING oslo_db.sqlalchemy.engines [req-d9f7cc33-c34d-4d98-802b-d77b8db30261 - - - - -] SQL connection failed. -7 attempts left.: oslo_db.exception.DBConnectionError: (pymysql.err.OperationalError) (2013, 'Lost connection to MySQL server during query') 2026-06-10 08:40:43.889 2 WARNING oslo_db.sqlalchemy.engines [req-d9f7cc33-c34d-4d98-802b-d77b8db30261 - - - - -] SQL connection failed. -8 attempts left.: oslo_db.exception.DBConnectionError: (pymysql.err.OperationalError) (2013, 'Lost connection to MySQL server during query') 2026-06-10 08:40:53.903 2 WARNING oslo_db.sqlalchemy.engines [req-d9f7cc33-c34d-4d98-802b-d77b8db30261 - - - - -] SQL connection failed. -9 attempts left.: oslo_db.exception.DBConnectionError: (pymysql.err.OperationalError) (2013, 'Lost connection to MySQL server during query') 2026-06-10 08:41:03.917 2 WARNING oslo_db.sqlalchemy.engines [req-d9f7cc33-c34d-4d98-802b-d77b8db30261 - - - - -] SQL connection failed. -10 attempts left.: oslo_db.exception.DBConnectionError: (pymysql.err.OperationalError) (2013, 'Lost connection to MySQL server during query') 2026-06-10 08:41:13.928 2 WARNING oslo_db.sqlalchemy.engines [req-d9f7cc33-c34d-4d98-802b-d77b8db30261 - - - - -] SQL connection failed. -11 attempts left.: oslo_db.exception.DBConnectionError: (pymysql.err.OperationalError) (2013, 'Lost connection to MySQL server during query') 2026-06-10 08:41:23.937 2 WARNING oslo_db.sqlalchemy.engines [req-d9f7cc33-c34d-4d98-802b-d77b8db30261 - - - - -] SQL connection failed. -12 attempts left.: oslo_db.exception.DBConnectionError: (pymysql.err.OperationalError) (2013, 'Lost connection to MySQL server during query') 2026-06-10 08:41:33.951 2 WARNING oslo_db.sqlalchemy.engines [req-d9f7cc33-c34d-4d98-802b-d77b8db30261 - - - - -] SQL connection failed. -13 attempts left.: oslo_db.exception.DBConnectionError: (pymysql.err.OperationalError) (2013, 'Lost connection to MySQL server during query')