查看主从状态主服务器Mysql> show master status;+------------------+-----------+--------------+-----------------
查看主从状态
主服务器
Mysql> show master status;
+------------------+-----------+--------------+------------------+-------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+-----------+--------------+------------------+-------------------+
| mysql-bin.000467 | 509113942 | | | |
+------------------+-----------+--------------+------------------+-------------------+
从服务器
mysql> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.11.11
Master_User: repluser
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000467
Read_Master_Log_Pos: 537072113
Relay_Log_File: mysql-relay-bin.001357
Relay_Log_Pos: 789610157
Relay_Master_Log_File: mysql-bin.000454
Slave_IO_Running: Yes
Slave_SQL_Running: No
Replicate_Do_DB:
Replicate_Ignore_DB: mysql,infORMation_schema
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 1060
Last_Error: Error 'Duplicate column name 'AES_TEL1'' on query. ....
原因:
错误的认为从库是主库,在从库做了alter table 修改表结构,之后发现是从库后又在主库上做了该操作,主库做完操作后从库也会执行这个语句,但是由于从库上已经做了修改,所以主从线程更改表失败,就会看到从库状态如上面所示,手动解决这个问题:
mysql>set global sql_slave_skip_counter=1;
mysql>start slave;
告诉从库,让它忽略掉这个错误继续执行同步。
参考:https://www.cnblogs.com/cobbliu/p/4227183.html
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本文标题: mysql主从同步异常
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