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mysql-m-s 同步状态

2010-06-17 12:30:25| 分类： mysql 主从服务器 | 标签： |举报 |字号大中小订阅

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在MySQL的主从配置中，在slave上执行show slave status可以看到slave的状态，

Exec_Master_Log_Pos： The position of the last event executed by the SQL thread from the master's binary log (Relay_Master_Log_File).
(Relay_Master_Log_File, Exec_Master_Log_Pos) in the master's binary log corresponds to (Relay_Log_File, Relay_Log_Pos) in the relay log.
(Relay_Master_Log_File, Exec_Master_Log_Pos)和(Relay_Log_File, Relay_Log_Pos)是对应的，它们表示的是Slave中的SQL进程中正在执行的语句的位置，表明的是Slave和Master之间的同步状态。

当Slave中Relay_Master_Log_File和Master_Log_File相同且Read_Master_Log_Pos和 Exec_Master_Log_Pos完全相同时，表明Slave和Master处于完全同步的状态。

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