MySQL 复制错误 1594

Question

有没有一种方法可以在不经过MySQL :: MySQL 5.1 参考手册 :: 16复制的情况下重新启动复制。

我没有看到任何错误master，我也不完全确定为什么slave会遇到以下问题：

mysql> SHOW SLAVE STATUS\G;
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: Master_Host-FQDN.TLD
                  Master_User: Master_User-REPL
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000057
          Read_Master_Log_Pos: 247673142
               Relay_Log_File: mysql:PR_DB-relay-bin.000041
                Relay_Log_Pos: 5537565
        Relay_Master_Log_File: mysql-bin.000044
             Slave_IO_Running: Yes
            Slave_SQL_Running: No
              Replicate_Do_DB: RDD1,RDD2,RDDX
          Replicate_Ignore_DB: information_schema,mysql
           Replicate_Do_Table: 
       Replicate_Ignore_Table: 
      Replicate_Wild_Do_Table: 
  Replicate_Wild_Ignore_Table: 
                   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: 25338679
              Relay_Log_Space: 2190669763
              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)

ERROR: 
No query specified

mysql>

--log-error=/var/log/mysqld.log （奴隶）：

140630  9:10:53 [ERROR] Error in Log_event::read_log_event(): 'read error', data_len: 255, event_type: 2
140630  9:10:53 [ERROR] Error reading relay log event: slave SQL thread aborted because of I/O error
140630  9:10:53 [ERROR] Slave SQL: 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. Error_code: 1594
140630  9:10:53 [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.000044' position 25338679

我可以使用CHANGE MASTER TO（MySQL :: MySQL 5.1 Reference Manual :: 16.1.1.10 Setting the Master Configuration on the Slave）并指向相应的值：

• MASTER_LOG_FILE= Relay_Master_Log_File,
• MASTER_LOG_POS Exec_Master_Log_Pos.

Answer 1

你应该复制的最安全的位置是

• 日志文件 mysql-bin.000044
• 日志位置：25338679

这些代表在从站上执行的最新二进制日志事件。这就是您从中获取复制的地方。运行CHANGE MASTER TO将清除中继日志并从全新的中继日志开始。