mysql主从同步如何跳过错误

mysql主从同步跳过错误的方法：1、跳过指定数量的事务，代码为【mysql>SET GLOBAL SQL_SLAVE_SKIP..】；2、修改mysql的配置文件，通过【slave_skip_errors】参数来跳所有错误。

本教程操作环境：windows7系统、mysql 5.6.14版，DELL G3电脑，该方法适用于所有品牌电脑。

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mysql主从同步跳过错误的方法：

1、跳过指定数量的事务：

mysql>slave stop;
mysql>SET GLOBAL SQL_SLAVE_SKIP_COUNTER = 1        #跳过一个事务
mysql>slave start

2、修改mysql的配置文件，通过slave_skip_errors参数来跳所有错误或指定类型的错误

vi /etc/my.cnf
[mysqld]
#slave-skip-errors=1062,1053,1146  #跳过指定error no类型的错误
#slave-skip-errors=all  #跳过所有错误

例：下面模拟一个错误场景

环境（一个已经配置好的主从复制环境）

master数据库IP：192.168.247.128

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slave数据库IP：192.168.247.130

mysql版本：5.6.14

binlog-do-db = mydb

在master上执行以下语句：

mysql>use mysql;
mysql>create table t1 (id int);
mysql>use mydb;
mysql>insert into mysql.t1 select 1;

在slave上查看复制状态

mysql> show slave status\G
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 192.168.247.128
                  Master_User: repl
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000017
          Read_Master_Log_Pos: 2341
               Relay_Log_File: DBtest1-relay-bin.000011
                Relay_Log_Pos: 494
        Relay_Master_Log_File: mysql-bin.000017
             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: 1146
                   Last_Error: Error 'Table 'mysql.t1' doesn't exist' on query. Default database: 'mydb'. Query: 'insert into mysql.t1 select 1'
                 Skip_Counter: 0
          Exec_Master_Log_Pos: 1919
              Relay_Log_Space: 1254
              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: 1146
               Last_SQL_Error: Error 'Table 'mysql.t1' doesn't exist' on query. Default database: 'mydb'. Query: 'insert into mysql.t1 select 1'
  Replicate_Ignore_Server_Ids: 
             Master_Server_Id: 1
                  Master_UUID: f0f7faf6-51a8-11e3-9759-000c29eed3ea
             Master_Info_File: /var/lib/mysql/master.info
                    SQL_Delay: 0
          SQL_Remaining_Delay: NULL
      Slave_SQL_Running_State: 
           Master_Retry_Count: 86400
                  Master_Bind: 
      Last_IO_Error_Timestamp: 
     Last_SQL_Error_Timestamp: 131210 21:37:19
               Master_SSL_Crl: 
           Master_SSL_Crlpath: 
           Retrieved_Gtid_Set: 
            Executed_Gtid_Set: 
                Auto_Position: 0
1 row in set (0.00 sec)

由结果可以看到，Read_Master_Log_Pos: 2341，Exec_Master_Log_Pos: 1919时出错了Last_SQL_Error: Error 'Table 'mysql.t1' doesn't exist' on query.

因为只对mydb记录了binlog,当在mydb库操作其它数据库的表，但该表在slave上又不存在时就出错了。