现在由于业务的需要,不需要这台Slave同步复制Master,那么采用reset slave时,你会发现同步信息还存在,如:
mysql> stop slave;
Query OK, 0 rows affected (0.19 sec)
mysql >reset slave;
Query OK, 0 rows affected (0.17 sec)
mysql > show slave status\G;
*************************** 1. row ***************************
Slave_IO_State:
Master_Host: 192.168.8.22
Master_User: repl
Master_Port: 3306
Connect_Retry: 10
Master_Log_File:
Read_Master_Log_Pos: 4
Relay_Log_File: vm02-relay-bin.000001
Relay_Log_Pos: 4
Relay_Master_Log_File:
Slave_IO_Running: No
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: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 0
Relay_Log_Space: 126
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: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 22
1 row in set (0.02 sec)
ERROR:
No query specified
执行reset slave,其实是把master.info和relay-log.info文件给删除,但里面的同步信息还在,那么可以用这个方法,让其清除的彻彻底底。
mysql> reset slave all;
Query OK, 0 rows affected (0.04 sec)
mysql > show slave status\G;
Empty set (0.02 sec)
ERROR:
No query specified
注:此语句支持在MySQL5.5或更高版本。