3分钟解决MySQL主从1594错误
简介
Part1: 写在最前
1594这个错误看起来挺严重的,会提示你binlog文件或者Relay log损坏了,例如binary log is corrupted、relay log is corrupted之类的看起来很吓人是吧,多数是由于掉电引发的,这也说明了机房配备UPS的重要性。本文来自真实生产案例,感谢网友加内特提供,本人加以故障重现校验。一起来看下如何解决吧。
Part2: 完整报错信息
mysql> show slave status\G
*************************** 1\. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.1.250
Master_User: mysync
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000006
Read_Master_Log_Pos: 2091061
Relay_Log_File: mysql-relay-bin.000002
Relay_Log_Pos: 1675027
Relay_Master_Log_File: mysql-bin.000006
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: 1594
Last_Error: Relay log read failure: Could not parse relay log event entry. The possible reasons are: the master's binary log is corrupted (you can check this by running 'mysqlbinlog' on the binary log), the slave's relay log is corrupted (you can check this by running 'mysqlbinlog' on the relay log), a network problem, or a bug in the master's or slave's MySQL code. If you want to check the master's binary log or slave's relay log, you will be able to know their names by issui