MySQL同步故障:" Slave

xiaoxiao2025-10-16  18

进入slave服务器,运行:

mysql> show slave status\G

Relay_Log_File: localhost-relay-bin.000535 Relay_Log_Pos: 21795072 Relay_Master_Log_File: localhost-bin.000094 Slave_IO_Running: Yes Slave_SQL_Running: No Replicate_Do_DB: Replicate_Ignore_DB:

解决办法一、

Slave_SQL_Running: No 1.程序可能在slave上进行了写操作

2.也可能是slave机器重起后,事务回滚造成的.

一般是事务回滚造成的: 解决办法: mysql> stop slave ; mysql> set GLOBAL SQL_SLAVE_SKIP_COUNTER=1; mysql> start slave ;

解决办法二、

首先停掉Slave服务:slave stop 到主服务器上查看主机状态: 记录File和Position对应的值

进入master

mysql> show master status; ±---------------------±---------±-------------±-----------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | ±---------------------±---------±-------------±-----------------+ | localhost-bin.000094 | 33622483 | | | ±---------------------±---------±-------------±-----------------+ 1 row in set (0.00 sec)

然后到slave服务器上执行手动同步:

mysql> change master to

master_host=‘master_ip’, master_user=‘user’, master_password=‘pwd’, master_port=3306, master_log_file=localhost-bin.000094’, master_log_pos=33622483 ; 1 row in set (0.00 sec) mysql> start slave ; 1 row in set (0.00 sec)

mysql> show slave status\G *************************** 1. row *************************** … Master_Log_File: localhost-bin.000094 Read_Master_Log_Pos: 33768775 Relay_Log_File: localhost-relay-bin.000537 Relay_Log_Pos: 1094034 Relay_Master_Log_File: localhost-bin.000094 Slave_IO_Running: Yes Slave_SQL_Running: Yes Replicate_Do_DB:

手动同步需要停止master的写操作!

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