mysql主从同步如何跳过错误
AndyYang|
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发表时间:2021-03-29 21:28:12
mysql
摘要: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。
mysql主从同步跳过错误的方法:
1、跳过指定数量的事务:
mysql>stop slave;
mysql>SET GLOBAL SQL_SLAVE_SKIP_COUNTER = 1 #跳过一个事务
mysql>start slave;
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
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。
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