windows下mysql主从出现Failed to open the relay log(relay_log_pos 248)解决办法

1、停止mysql服务

2、在mysql日志目录下删除所有的relay logs

3、删除mysqldata目录下所有hostname-relay-bin.XXX, hostname-relay-bin.index and relay-log.info

3、重启mysql服务

4、重新启动主从

mysql> show slave status \G

*************************** 1. row ***************************

Slave_IO_State: Waiting for master to send event

Master_Host: 172.168.3.190

Master_User: slave

Master_Port: 12148

Connect_Retry: 60

Master_Log_File: binlog.000002

Read_Master_Log_Pos: 106

Relay_Log_File: relaybinlog.000002

Relay_Log_Pos: 248

Relay_Master_Log_File: binlog.000002

Slave_IO_Running: Yes

Slave_SQL_Running: Yes

Replicate_Do_DB:

Replicate_Ignore_DB:

Replicate_Do_Table:

Replicate_Ignore_Table:

Replicate_Wild_Do_Table:

Replicate_Wild_Ignore_Table: mysql.%

Last_Errno: 0

Last_Error:

Skip_Counter: 0

Exec_Master_Log_Pos: 106

Relay_Log_Space: 399

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: 0

Master_SSL_Verify_Server_Cert: No

Last_IO_Errno: 0

Last_IO_Error:

Last_SQL_Errno: 0

Last_SQL_Error:

1 row in set (0.00 sec)