查看主從狀態
主服務器
mysql> show master status;
+------------------+-----------+--------------+------------------+-------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+-----------+--------------+------------------+-------------------+
| mysql-bin.000467 | 509113942 | | | |
+------------------+-----------+--------------+------------------+-------------------+
從服務器
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:
錯誤的認爲從庫是主庫,在從庫做了alter table 修改表結構,之後發現是從庫後又在主庫上做了該操作,主庫做完操作後從庫也會執行這個語句,但是由於從庫上已經做了修改,所以主從線程更改表失敗,就會看到從庫狀態如上面所示,手動解決這個問題:
mysql>set global sql_slave_skip_counter=1;
mysql>start slave;
告訴從庫,讓它忽略掉這個錯誤繼續執行同步。
參考:https://www.cnblogs.com/cobbliu/p/4227183.html