本帖最后由 earl86 于 2022-10-13 14:01 编辑 os: CentOS Linux release 7.7.1908 (Core) mysql版本: Server version: 5.7.35-38-log Percona Server (GPL), Release 38, Revision 3692a61 异步复制 相关参数: | binlog_transaction_dependency_tracking | WRITESET | | sync_binlog | 1 | | innodb_flush_log_at_timeout | 1 | | innodb_flush_log_at_trx_commit | 1 | | binlog_gtid_simple_recovery | ON | | enforce_gtid_consistency | ON | | gtid_mode | ON | 从库参数配置 mysql> show variables like '%read_only%'; +-----------------------+-------+ | Variable_name | Value | +-----------------------+-------+ | innodb_read_only | OFF | | read_only | ON | | super_read_only | ON | | transaction_read_only | OFF | | tx_read_only | OFF | +-----------------------+-------+ 5 rows in set (0.00 sec) 其他参数 | slave_exec_mode | STRICT | | slave_parallel_type | LOGICAL_CLOCK | | slave_parallel_workers | 48 | | slave_preserve_commit_order | ON | 同步状态正常: mysql> show slave status\G; *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 192.168.1.100 Master_User: replusername Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.137285 Read_Master_Log_Pos: 1025249001 Relay_Log_File: mysql-relay-bin.411852 Relay_Log_Pos: 1024538398 Relay_Master_Log_File: mysql-bin.137285 Slave_IO_Running: Yes Slave_SQL_Running: Yes Replicate_Do_DB: Replicate_Ignore_DB: Replicate_Do_Table: Replicate_Ignore_Table: Replicate_Wild_Do_Table: Replicate_Wild_Ignore_Table: Last_Errno: 0 Last_Error: Skip_Counter: 0 Exec_Master_Log_Pos: 1024538193 Relay_Log_Space: 1025249528 Until_Condition: None Until_Log_File: Until_Log_Pos: 0 Master_SSL_Allowed: No Master_SSL_CA_File: Master_SSL_CA_Path: Master_SSL_Cert: Master_SSL_Cipher: Master_SSL_Key: Seconds_Behind_Master: 1 Master_SSL_Verify_Server_Cert: No Last_IO_Errno: 0 Last_IO_Error: Last_SQL_Errno: 0 Last_SQL_Error: Replicate_Ignore_Server_Ids: Master_Server_Id: 168952092 Master_UUID: 32f6db3b-1843-11ec-84c1-ac1f6bcb6ad6 Master_Info_File: mysql.slave_master_info SQL_Delay: 0 SQL_Remaining_Delay: NULL Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates Master_Retry_Count: 86400 Master_Bind: Last_IO_Error_Timestamp: Last_SQL_Error_Timestamp: Master_SSL_Crl: Master_SSL_Crlpath: Retrieved_Gtid_Set: 1e867cf3-d162-11ea-949e-ac1f6ba5c058:57304923998-57324005921, 32f6db3b-1843-11ec-84c1-ac1f6bcb6ad6:1-69282333916 Executed_Gtid_Set: 1e867cf3-d162-11ea-949e-ac1f6ba5c058:1-57324005921, 32f6db3b-1843-11ec-84c1-ac1f6bcb6ad6:1-69282333910, c7b2cce0-53dc-11eb-b0e3-ac1f6bcb6a16:1 Auto_Position: 1 Replicate_Rewrite_DB: Channel_Name: Master_TLS_Version: 1 row in set (0.00 sec) ERROR: No query specified 检查脚本先连接从库执行select @@global.gtid_executed,然后再连接主库执行select @@global.gtid_executed 对比主从差异 不停的check偶尔会发现从库上的gtid更大一点 slave: 1e867cf3-d162-11ea-949e-ac1f6ba5c058:1-57324005921, 32f6db3b-1843-11ec-84c1-ac1f6bcb6ad6:1-69283791247, c7b2cce0-53dc-11eb-b0e3-ac1f6bcb6a16:1 master: 1e867cf3-d162-11ea-949e-ac1f6ba5c058:1-57324005921, 32f6db3b-1843-11ec-84c1-ac1f6bcb6ad6:1-69283791244, c7b2cce0-53dc-11eb-b0e3-ac1f6bcb6a16:1 发现master缺少的gtid: 32f6db3b-1843-11ec-84c1-ac1f6bcb6ad6:69283791245-69283791247 |
yejr
2022-10-13 13:40:09
| ||
earl86
2022-10-13 13:55:06
| ||
yejr
2022-10-20 16:37:32
| ||
合作电话:010-64087828
社区邮箱:greatsql@greatdb.com