Relay log read failure

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root@localhost > show slave status\G
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 10.38.153.53
                  Master_User: mysqlsync
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000219
          Read_Master_Log_Pos: 89383037
               Relay_Log_File: relay-log.000053
                Relay_Log_Pos: 27720941
        Relay_Master_Log_File: mysql-bin.000218
             Slave_IO_Running: Yes
            Slave_SQL_Running: No
              Replicate_Do_DB: 
          Replicate_Ignore_DB: 
           Replicate_Do_Table: 
       Replicate_Ignore_Table: 
      Replicate_Wild_Do_Table: 
  Replicate_Wild_Ignore_Table: mysql.%,test.%
                   Last_Errno: 1594
                   Last_Error: Relay log read failure: Could not parse relay log event entry. The possible reasons are: the master‘s binary log is corrupted (you can check this by running ‘mysqlbinlog‘ on the binary log), the slave‘s relay log is corrupted (you can check this by running ‘mysqlbinlog‘ on the relay log), a network problem, or a bug in the master‘s or slave‘s MySQL code. If you want to check the master‘s binary log or slave‘s relay log, you will be able to know their names by issuing ‘SHOW SLAVE STATUS‘ on this slave.
                 Skip_Counter: 0
          Exec_Master_Log_Pos: 327040482
              Relay_Log_Space: 1162234306
              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: 1594
               Last_SQL_Error: Relay log read failure: Could not parse relay log event entry. The possible reasons are: the master‘s binary log is corrupted (you can check this by running ‘mysqlbinlog‘ on the binary log), the slave‘s relay log is corrupted (you can check this by running ‘mysqlbinlog‘ on the relay log), a network problem, or a bug in the master‘s or slave‘s MySQL code. If you want to check the master‘s binary log or slave‘s relay log, you will be able to know their names by issuing ‘SHOW SLAVE STATUS‘ on this slave.
1 row in set (0.00 sec)

root@localhost> stop slave;
Query OK, 0 rows affected (0.00 sec)

重新启动同步。
root@localhost> change master to master_log_file=‘mysql-bin.000218‘,master_log_pos=327040482;
Query OK, 0 rows affected (0.71 sec)

root@localhost> start slave;
Query OK, 0 rows affected (0.00 sec)

root@localhost> show slave status\G
*************************** 1. row ***************************
               Slave_IO_State: Queueing master event to the relay log
                  Master_Host: 10.38.153.53
                  Master_User: mysqlsync
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000218
          Read_Master_Log_Pos: 500948630
               Relay_Log_File: relay-log.000002
                Relay_Log_Pos: 1357969
        Relay_Master_Log_File: mysql-bin.000218
             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.%,test.%
                   Last_Errno: 0
                   Last_Error: 
                 Skip_Counter: 0
          Exec_Master_Log_Pos: 328398200
              Relay_Log_Space: 173908548
              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: 21858
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)

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Relay log read failure

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原文地址：http://www.cnblogs.com/zhaoshuangshuang/p/3704466.html