Repair MySQL Replication
My SQL 复制过程中,sql post thread如果执行某个SQL出错,则会自动停止并且在日志和show slave status中提示错误信息。错误日志如下: 110824 19:11:02 [ERROR] Slave SQL: Could not execute Delete_rows event on table smarteye.client_reqs; Can't find record in 'client_reqs', Error_code: 1032; handler error HA_ERR_KEY_NOT_FOUND; the event's master log mysql-bin.000027, end_log_pos 134417, Error_code: 1032 110824 19:11:02 [Warning] Slave: Can't find record in 'client_reqs' Error_code: 1032 110824 19:11:02 [ERROR] Error running query, slave SQL thread aborted. Fix the problem, and restart the slave SQL thread with "SLAVE START". We stopped at log 'mysql-bin.000027' position 134135
mysql> SHOW SLAVE STATUS \G ***************************
1. row *************************** Slave_IO_State: Waiting for master to send
event Master_Host: qadb27.qa.ebay.com Master_User:
slave_user Master_Port: 3306 Connect_Retry: 60 Master_Log_File:
mysql-bin.000004 Read_Master_Log_Pos: 1608 Relay_Log_File:
qadb17-relay-bin.006018 Relay_Log_Pos: 251 Relay_Master_Log_File:
mysql-bin.000004 Slave_IO_Running: Yes Slave_SQL_Running:
No Replicate_Do_DB: Replicate_Ignore_DB: Replicate_Do_Table: Replicate_Ignore_Table: Replicate_Wild_Do_Table: Replicate_Wild_Ignore_Table: Last_Errno:
1032 Last_Error: Could not execute Delete_rows event on table
CATY.buyer_info; Can’t find record in ‘buyer_info’, Error_code: 1032; handler
error HA_ERR_KEY_NOT_FOUND; the event’s master log mysql-bin.000004, end_log_pos
1581 Skip_Counter: 0 Exec_Master_Log_Pos: 1425 Relay_Log_Space:
10066 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:
NULL Master_SSL_Verify_Server_Cert: No Last_IO_Errno:
0 Last_IO_Error: Last_SQL_Errno: 1032 Last_SQL_Error: Could not execute
Delete_rows event on table CATY.buyer_info; Can’t find record in ‘buyer_info’,
Error_code: 1032; handler error HA_ERR_KEY_NOT_FOUND; the event’s master log
mysql-bin.000004, end_log_pos 1581 1 row in set (0.00 sec)
解决办法 mysql> STOP SLAVE; Query OK, 0 rows affected (0.00
sec)
mysql> SET GLOBAL SQL_SLAVE_SKIP_COUNTER = 1; Query
OK, 0 rows affected (0.00 sec)
mysql> START SLAVE; Query OK, 0 rows affected (0.01
sec)
mysql> SHOW SLAVE STATUS \G *************************** 1. row
*************************** Slave_IO_State: Waiting for master to send
event Master_Host: qadb27.qa.ebay.com Master_User:
slave_user Master_Port: 3306 Connect_Retry: 60 Master_Log_File:
mysql-bin.000004 Read_Master_Log_Pos: 1608 Relay_Log_File:
qadb17-relay-bin.006075 Relay_Log_Pos: 251 Relay_Master_Log_File:
mysql-bin.000004 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:
1608 Relay_Log_Space: 552 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:
0 Master_SSL_Verify_Server_Cert: No Last_IO_Errno:
0 Last_IO_Error: Last_SQL_Errno: 0 Last_SQL_Error: 1 row in set
(0.00 sec) 避免数据不一致可以在slave DB上设置GLOBAL
read_only=true或者一定的用户权限。
也可编写高效的自动检测脚本重起sql
thread。
是复制就会有数据不一致的问题的。 =================================== QQ交流:1359962567(↗freeda)
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