1 mysq error日志报错例如以下：
2014-05-12 11:29:54 22977 [ERROR] Slave SQL: The incident LOST_EVENTS occured on the master. Message: error writing to the binary log, Error_code: 1590
2014-05-12 11:29:54 22977 [ERROR] Error running query, slave SQL thread aborted. Fix the problem, and restart the slave SQL thread with "SLAVE START". We stopped at log 'mysql-bin.010275' position 91642
2 登录mysql从库，check slave状态
mysql> show slave statusG
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 10.2xx.3.xx
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.010298
Read_Master_Log_Pos: 67843
Relay_Log_File: mysql-relay-bin.003125
Relay_Log_Pos: 91805
Relay_Master_Log_File: mysql-bin.010275
Slave_IO_Running: Yes
Slave_SQL_Running: No
Replicate_Do_DB: business_db,user_db,plocc_system
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 1590
Last_Error: The incident LOST_EVENTS occured on the master. Message: error writing to the binary log
Skip_Counter: 0
Exec_Master_Log_Pos: 91642
Relay_Log_Space: 2420882
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: 1590
Last_SQL_Error: The incident LOST_EVENTS occured on the master. Message: error writing to the binary log
Replicate_Ignore_Server_Ids:
Master_Server_Id: 71
Master_UUID: 9b0dcf62-29f4-11e3-9471-677b33903869
Master_Info_File: mysql.slave_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: 140512 11:29:54
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0
1 row in set (0.00 sec)
mysql> 从这里看出来，复制down了。3。google了非常多资料，大部分出如今mysql cluster中，大家的做法都是从新做从库。或者换个master接入点。
时间紧急，我也仅仅能从新搭建从库了。特留此记录于此，假设有朋友看到这里，有别的解决方式。非常欢迎留言或者发email到mchdba@tom.com