進入slave伺服器，執行：

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.程式可能在slave上進行了寫操作

2.也可能是slave機器重起後，事務回滾造成的.

一般是事務回滾造成的：
解決辦法：

mysql> stop slave ;
mysql> set GLOBAL SQL_SLAVE_SKIP_COUNTER=1;
mysql> start slave ;

解決辦法二、（推薦）

首先停掉Slave服務：slave stop
到主伺服器上檢視主機狀態：
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)

然後到slave伺服器上執行手動同步：


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> start slave ;
1 row in set (0.00 sec)

start slave

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:

CHANGE MASTER TO master_host = '101.201.142.142',
master_port = 3306,
master_user = 'yqjf_slavE',
master_password = 'slave2f9r',
master_log_file = 'mysql-bin.000574',
master_log_pos = 48665419;

轉載自：https://blog.csdn.net/jasontech/article/details/39435873?utm_source=blogxgwz0