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HomeDatabaseMysql Tutorial MySQL故障切换之事件调度器(event)注意事项

在主从架构中,在master创建一个event,如下:mysqlshowcreateevent`insert`\\G;***************************1.row***************************..

在主从架构中,在master创建一个event,虚拟主机,如下:

slave同步过去,结果是这样的,注意红色字体:

再回过头来,看下事件状态,注意红色字体:

在master上

在slave上

也就是说,事件只能在master触发,slave上不会触发,香港服务器租用,否则如果slave上触发了,同步复制就会坏掉。

当主从故障切换之后,VIP漂移到了以前的slave上,此时slave成了新的master。

但这时,事件的状态还是维持SLAVESIDE_DISABLED,并不是也改成了ENABLED,这样就会造成切换以后,香港服务器,事件无法执行。

所以,需要人工重新开启事件状态。

  • Query OK, 0 rows affected (0.05 sec) 

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