本地MySQL环境，是两台MySQL做M-M复制。今天发现错误信息：

mysql 5.5.28-log> show slave status\G
*************************** 1. row ***************************
               Slave_IO_State:
                  Master_Host: 88.88.88.88
                  Master_User: replicate
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: testdbbinlog.000005
          Read_Master_Log_Pos: 98359687
               Relay_Log_File: mysql-relay-bin.000020
                Relay_Log_Pos: 4
        Relay_Master_Log_File: testdbbinlog.000005
             Slave_IO_Running: No
            Slave_SQL_Running: Yes
              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: 98359687
              Relay_Log_Space: 107
              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: 1236
                Last_IO_Error: Got fatal error 1236 from master when reading data from binary log: 'Could not find first log file name in binary log index file'
               Last_SQL_Errno: 0
               Last_SQL_Error:
  Replicate_Ignore_Server_Ids:
             Master_Server_Id: 1
1 row in set (0.00 sec)

mysql 5.5.28-log>

参考网上文档： http://blog.csdn.net/billfanggs/article/details/8905991

在source那边，执行：

flush logs;
show master status;

记下File, Position。

在target端，执行：

CHANGE MASTER TO MASTER_LOG_FILE='testdbbinlog.000008',MASTER_LOG_POS=107;
slave start;
show slave status \G

一切正常。

转自http://blog.csdn.net/edwzhang/article/details/17226975