進入slave服務器，運行：
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:
......
解決辦法一、
Slave_SQL_Running: No
1.程序可能在slave上進行了寫操作
2.也可能是slave機器重起后，事務回滾造成的.
一般是事務回滾造成的：
解決辦法：
mysql> slave stop;
mysql> set GLOBAL SQL_SLAVE_SKIP_COUNTER=1;
mysql> slave start;
解決辦法二、
首先停掉Slave服務：slave stop
到主服務器上查看主機狀態：
記錄File和Position對應的值
進入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服務器上執行手動同步：
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> slave start;
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:
手動同步需要停止master的寫操作！