2026-04-20T14:44:30.088602Z 0 [System] [MY-013169] [Server] /usr/sbin/mysqld (mysqld 8.0.42-0ubuntu0.22.04.1) initializing of server in progress as process 10334 2026-04-20T14:44:30.101599Z 1 [System] [MY-013576] [InnoDB] InnoDB initialization has started. 2026-04-20T14:44:31.822052Z 1 [System] [MY-013577] [InnoDB] InnoDB initialization has ended. 2026-04-20T14:44:36.968817Z 6 [Warning] [MY-010453] [Server] root@localhost is created with an empty password ! Please consider switching off the --initialize-insecure option. 2026-04-20T14:44:39.228842Z 6 [System] [MY-013172] [Server] Received SHUTDOWN from user boot. Shutting down mysqld (Version: 8.0.42-0ubuntu0.22.04.1). 2026-04-20T14:44:45.692935Z 0 [System] [MY-010116] [Server] /usr/sbin/mysqld (mysqld 8.0.42-0ubuntu0.22.04.1) starting as process 10382 2026-04-20T14:44:46.274868Z 1 [System] [MY-013576] [InnoDB] InnoDB initialization has started. 2026-04-20T14:44:46.663025Z 1 [System] [MY-013577] [InnoDB] InnoDB initialization has ended. 2026-04-20T14:44:47.202282Z 0 [Warning] [MY-010068] [Server] CA certificate ca.pem is self signed. 2026-04-20T14:44:47.202351Z 0 [System] [MY-013602] [Server] Channel mysql_main configured to support TLS. Encrypted connections are now supported for this channel. 2026-04-20T14:44:47.217461Z 0 [Warning] [MY-011810] [Server] Insecure configuration for --pid-file: Location '/tmp' in the path is accessible to all OS users. Consider choosing a different directory. 2026-04-20T14:44:47.244836Z 0 [System] [MY-010931] [Server] /usr/sbin/mysqld: ready for connections. Version: '8.0.42-0ubuntu0.22.04.1' socket: '/tmp/tmp.k5JJ3P26r6/mysqld.sock' port: 0 (Ubuntu). 2026-04-20T14:44:47.244877Z 0 [System] [MY-011323] [Server] X Plugin ready for connections. Socket: /var/run/mysqld/mysqlx.sock 2026-04-20T14:44:47.276260Z 0 [System] [MY-013172] [Server] Received SHUTDOWN from user . Shutting down mysqld (Version: 8.0.42-0ubuntu0.22.04.1). 2026-04-20T14:44:48.777604Z 0 [System] [MY-010910] [Server] /usr/sbin/mysqld: Shutdown complete (mysqld 8.0.42-0ubuntu0.22.04.1) (Ubuntu). 2026-04-20T14:44:50.764682Z 0 [System] [MY-010116] [Server] /usr/sbin/mysqld (mysqld 8.0.42-0ubuntu0.22.04.1) starting as process 10527 2026-04-20T14:44:50.772441Z 1 [System] [MY-013576] [InnoDB] InnoDB initialization has started. 2026-04-20T14:44:51.170748Z 1 [System] [MY-013577] [InnoDB] InnoDB initialization has ended. 2026-04-20T14:44:51.597773Z 0 [Warning] [MY-010068] [Server] CA certificate ca.pem is self signed. 2026-04-20T14:44:51.597834Z 0 [System] [MY-013602] [Server] Channel mysql_main configured to support TLS. Encrypted connections are now supported for this channel. 2026-04-20T14:44:51.652986Z 0 [System] [MY-011323] [Server] X Plugin ready for connections. Bind-address: '127.0.0.1' port: 33060, socket: /var/run/mysqld/mysqlx.sock 2026-04-20T14:44:51.653145Z 0 [System] [MY-010931] [Server] /usr/sbin/mysqld: ready for connections. Version: '8.0.42-0ubuntu0.22.04.1' socket: '/var/run/mysqld/mysqld.sock' port: 3306 (Ubuntu). 2026-04-20T14:44:55.006988Z 0 [System] [MY-013172] [Server] Received SHUTDOWN from user . Shutting down mysqld (Version: 8.0.42-0ubuntu0.22.04.1). 2026-04-20T14:44:55.972899Z 0 [System] [MY-010910] [Server] /usr/sbin/mysqld: Shutdown complete (mysqld 8.0.42-0ubuntu0.22.04.1) (Ubuntu). 2026-04-20T14:44:56.433356Z 0 [System] [MY-010116] [Server] /usr/sbin/mysqld (mysqld 8.0.42-0ubuntu0.22.04.1) starting as process 10707 2026-04-20T14:44:56.449468Z 1 [System] [MY-013576] [InnoDB] InnoDB initialization has started. 2026-04-20T14:44:56.809750Z 1 [System] [MY-013577] [InnoDB] InnoDB initialization has ended. 2026-04-20T14:44:57.123685Z 0 [Warning] [MY-010068] [Server] CA certificate ca.pem is self signed. 2026-04-20T14:44:57.123730Z 0 [System] [MY-013602] [Server] Channel mysql_main configured to support TLS. Encrypted connections are now supported for this channel. 2026-04-20T14:44:57.163198Z 0 [System] [MY-010931] [Server] /usr/sbin/mysqld: ready for connections. Version: '8.0.42-0ubuntu0.22.04.1' socket: '/var/run/mysqld/mysqld.sock' port: 3306 (Ubuntu). 2026-04-20T14:44:57.163446Z 0 [System] [MY-011323] [Server] X Plugin ready for connections. Bind-address: '::' port: 33060, socket: /var/run/mysqld/mysqlx.sock 2026-04-20T14:50:37.994341Z 13 [ERROR] [MY-011685] [Repl] Plugin group_replication reported: 'The group_replication_group_name option is mandatory' 2026-04-20T14:50:37.994383Z 13 [ERROR] [MY-011660] [Repl] Plugin group_replication reported: 'Unable to start Group Replication on boot' 2026-04-20T14:50:38.344078Z 13 [Warning] [MY-010604] [Repl] Neither --relay-log nor --relay-log-index were used; so replication may break when this MySQL server acts as a replica and has his hostname changed!! Please use '--relay-log=juju-e9eddd-0-lxd-4-relay-bin' to avoid this problem. 2026-04-20T14:50:38.370957Z 13 [System] [MY-010597] [Repl] 'CHANGE REPLICATION SOURCE TO FOR CHANNEL 'group_replication_recovery' executed'. Previous state source_host='', source_port= 3306, source_log_file='', source_log_pos= 4, source_bind=''. New state source_host='', source_port= 3306, source_log_file='', source_log_pos= 4, source_bind=''. 2026-04-20T14:50:38.395582Z 13 [System] [MY-013587] [Repl] Plugin group_replication reported: 'Plugin 'group_replication' is starting.' 2026-04-20T14:50:38.396961Z 13 [Warning] [MY-011735] [Repl] Plugin group_replication reported: '[GCS] Automatically adding IPv4 localhost address to the allowlist. It is mandatory that it is added.' 2026-04-20T14:50:38.396984Z 13 [Warning] [MY-011735] [Repl] Plugin group_replication reported: '[GCS] Automatically adding IPv6 localhost address to the allowlist. It is mandatory that it is added.' 2026-04-20T14:50:38.449767Z 18 [System] [MY-010597] [Repl] 'CHANGE REPLICATION SOURCE TO FOR CHANNEL 'group_replication_applier' executed'. Previous state source_host='', source_port= 3306, source_log_file='', source_log_pos= 4, source_bind=''. New state source_host='', source_port= 0, source_log_file='', source_log_pos= 4, source_bind=''. 2026-04-20T14:50:38.497053Z 19 [System] [MY-014081] [Repl] Plugin group_replication reported: 'The Group Replication certifier broadcast thread (THD_certifier_broadcast) started.' 2026-04-20T14:50:39.254378Z 13 [System] [MY-011511] [Repl] Plugin group_replication reported: 'This server is working as secondary member with primary member address 252.129.94.241:3306.' 2026-04-20T14:50:39.254684Z 0 [System] [MY-011565] [Repl] Plugin group_replication reported: 'Setting super_read_only=ON.' 2026-04-20T14:50:39.255406Z 0 [Warning] [MY-013469] [Repl] Plugin group_replication reported: 'This member will start distributed recovery using clone. It is due to the number of missing transactions being higher than the configured threshold of 1.' 2026-04-20T14:50:40.254568Z 13 [System] [MY-014010] [Repl] Plugin group_replication reported: 'Plugin 'group_replication' has been started.' 2026-04-20T14:50:40.258083Z 0 [System] [MY-013471] [Repl] Plugin group_replication reported: 'Distributed recovery will transfer data using: Cloning from a remote group donor.' 2026-04-20T14:50:40.258679Z 32 [System] [MY-011566] [Repl] Plugin group_replication reported: 'Setting super_read_only=OFF.' 2026-04-20T14:50:40.258928Z 0 [System] [MY-011503] [Repl] Plugin group_replication reported: 'Group membership changed to 252.129.94.241:3306, 252.129.172.204:3306 on view 17766966200118647:2.' 2026-04-20T14:50:40.435740Z 33 [Warning] [MY-013460] [InnoDB] Clone removing all user data for provisioning: Started 2026-04-20T14:50:40.637942Z 33 [Warning] [MY-013460] [InnoDB] Clone removing all user data for provisioning: Finished 2026-04-20T14:50:44.331042Z 0 [System] [MY-011504] [Repl] Plugin group_replication reported: 'Group membership changed: This member has left the group.' 2026-04-20T14:50:46.332410Z 0 [Warning] [MY-010909] [Server] /usr/sbin/mysqld: Forcing close of thread 13 user: 'clusteruser'. 2026-04-20T14:50:46.338898Z 0 [System] [MY-011650] [Repl] Plugin group_replication reported: 'Plugin 'group_replication' is stopping.' 2026-04-20T14:50:46.339494Z 0 [System] [MY-014082] [Repl] Plugin group_replication reported: 'The Group Replication certifier broadcast thread (THD_certifier_broadcast) stopped.' 2026-04-20T14:50:46.339693Z 0 [System] [MY-011651] [Repl] Plugin group_replication reported: 'Plugin 'group_replication' has been stopped.' 2026-04-20T14:50:47.658832Z 0 [System] [MY-010910] [Server] /usr/sbin/mysqld: Shutdown complete (mysqld 8.0.42-0ubuntu0.22.04.1) (Ubuntu). 2026-04-20T14:50:48.475373Z 0 [System] [MY-010116] [Server] /usr/sbin/mysqld (mysqld 8.0.42-0ubuntu0.22.04.1) starting as process 25752 2026-04-20T14:50:48.485172Z 1 [System] [MY-013576] [InnoDB] InnoDB initialization has started. 2026-04-20T14:50:49.153349Z 1 [System] [MY-013577] [InnoDB] InnoDB initialization has ended. 2026-04-20T14:50:49.482697Z 0 [System] [MY-013587] [Repl] Plugin group_replication reported: 'Plugin 'group_replication' is starting.' 2026-04-20T14:50:49.483381Z 0 [System] [MY-014010] [Repl] Plugin group_replication reported: 'Plugin 'group_replication' has been started.' 2026-04-20T14:50:49.765861Z 0 [Warning] [MY-010068] [Server] CA certificate ca.pem is self signed. 2026-04-20T14:50:49.765914Z 0 [System] [MY-013602] [Server] Channel mysql_main configured to support TLS. Encrypted connections are now supported for this channel. 2026-04-20T14:50:49.811002Z 0 [Warning] [MY-010604] [Repl] Neither --relay-log nor --relay-log-index were used; so replication may break when this MySQL server acts as a replica and has his hostname changed!! Please use '--relay-log=juju-e9eddd-0-lxd-4-relay-bin' to avoid this problem. 2026-04-20T14:50:49.908764Z 9 [Warning] [MY-013360] [Server] '@@binlog_transaction_dependency_tracking' is deprecated and will be removed in a future release. 2026-04-20T14:50:49.912705Z 0 [System] [MY-011323] [Server] X Plugin ready for connections. Bind-address: '::' port: 33060, socket: /var/run/mysqld/mysqlx.sock 2026-04-20T14:50:49.912850Z 0 [System] [MY-010931] [Server] /usr/sbin/mysqld: ready for connections. Version: '8.0.42-0ubuntu0.22.04.1' socket: '/var/run/mysqld/mysqld.sock' port: 3306 (Ubuntu). 2026-04-20T14:50:49.913358Z 4 [System] [MY-011565] [Repl] Plugin group_replication reported: 'Setting super_read_only=ON.' 2026-04-20T14:50:49.915038Z 4 [Warning] [MY-011735] [Repl] Plugin group_replication reported: '[GCS] Automatically adding IPv4 localhost address to the allowlist. It is mandatory that it is added.' 2026-04-20T14:50:49.915059Z 4 [Warning] [MY-011735] [Repl] Plugin group_replication reported: '[GCS] Automatically adding IPv6 localhost address to the allowlist. It is mandatory that it is added.' 2026-04-20T14:50:49.967109Z 12 [System] [MY-010597] [Repl] 'CHANGE REPLICATION SOURCE TO FOR CHANNEL 'group_replication_applier' executed'. Previous state source_host='', source_port= 0, source_log_file='', source_log_pos= 4, source_bind=''. New state source_host='', source_port= 0, source_log_file='', source_log_pos= 4, source_bind=''. 2026-04-20T14:50:49.999870Z 13 [System] [MY-014081] [Repl] Plugin group_replication reported: 'The Group Replication certifier broadcast thread (THD_certifier_broadcast) started.' 2026-04-20T14:50:51.280607Z 4 [System] [MY-011511] [Repl] Plugin group_replication reported: 'This server is working as secondary member with primary member address 252.129.94.241:3306.' 2026-04-20T14:50:51.280922Z 0 [System] [MY-011565] [Repl] Plugin group_replication reported: 'Setting super_read_only=ON.' 2026-04-20T14:50:51.280979Z 0 [System] [MY-013471] [Repl] Plugin group_replication reported: 'Distributed recovery will transfer data using: Incremental recovery from a group donor' 2026-04-20T14:50:51.281200Z 0 [System] [MY-011503] [Repl] Plugin group_replication reported: 'Group membership changed to 252.129.94.241:3306, 252.129.172.204:3306 on view 17766966200118647:4.' 2026-04-20T14:50:51.324786Z 25 [System] [MY-010597] [Repl] 'CHANGE REPLICATION SOURCE TO FOR CHANNEL 'group_replication_recovery' executed'. Previous state source_host='', source_port= 3306, source_log_file='', source_log_pos= 4, source_bind=''. New state source_host='252.129.94.241', source_port= 3306, source_log_file='', source_log_pos= 4, source_bind=''. 2026-04-20T14:50:51.368002Z 26 [Warning] [MY-010897] [Repl] Storing MySQL user name or password information in the connection metadata repository is not secure and is therefore not recommended. Please consider using the USER and PASSWORD connection options for START REPLICA; see the 'START REPLICA Syntax' in the MySQL Manual for more information. 2026-04-20T14:50:51.415791Z 26 [System] [MY-014002] [Repl] Replica receiver thread for channel 'group_replication_recovery': connected to source 'mysql_innodb_cluster_1000@252.129.94.241:3306' with server_uuid=699c529f-3cc7-11f1-9512-00163e5e6232, server_id=1000. Starting GTID-based replication. 2026-04-20T14:50:51.439771Z 27 [Warning] [MY-010584] [Repl] Replica SQL for channel 'group_replication_recovery': Coordinator thread of multi-threaded replica is being stopped in the middle of assigning a group of events; deferring to exit until the group completion ... , Error_code: MY-000000 2026-04-20T14:50:51.614394Z 25 [System] [MY-010597] [Repl] 'CHANGE REPLICATION SOURCE TO FOR CHANNEL 'group_replication_recovery' executed'. Previous state source_host='252.129.94.241', source_port= 3306, source_log_file='', source_log_pos= 4, source_bind=''. New state source_host='', source_port= 0, source_log_file='', source_log_pos= 4, source_bind=''. 2026-04-20T14:50:51.652302Z 0 [System] [MY-011490] [Repl] Plugin group_replication reported: 'This server was declared online within the replication group.' 2026-04-20T14:50:52.568122Z 32 [System] [MY-010597] [Repl] 'CHANGE REPLICATION SOURCE TO FOR CHANNEL 'group_replication_recovery' executed'. Previous state source_host='', source_port= 0, source_log_file='', source_log_pos= 4, source_bind=''. New state source_host='', source_port= 0, source_log_file='', source_log_pos= 4, source_bind=''. 2026-04-20T14:51:17.104152Z 0 [System] [MY-011503] [Repl] Plugin group_replication reported: 'Group membership changed to 252.129.33.139:3306, 252.129.94.241:3306, 252.129.172.204:3306 on view 17766966200118647:5.' 2026-04-20T14:51:20.004798Z 0 [Warning] [MY-011499] [Repl] Plugin group_replication reported: 'Members removed from the group: 252.129.33.139:3306' 2026-04-20T14:51:20.004902Z 0 [System] [MY-011503] [Repl] Plugin group_replication reported: 'Group membership changed to 252.129.94.241:3306, 252.129.172.204:3306 on view 17766966200118647:6.' 2026-04-20T14:51:32.768105Z 0 [System] [MY-011503] [Repl] Plugin group_replication reported: 'Group membership changed to 252.129.33.139:3306, 252.129.94.241:3306, 252.129.172.204:3306 on view 17766966200118647:7.' 2026-04-20T14:51:33.215957Z 0 [System] [MY-011492] [Repl] Plugin group_replication reported: 'The member with address 252.129.33.139:3306 was declared online within the replication group.'