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                ## 概述 mysql從5.7開始可以在線設置復制過濾,但是還是得停復制,不過不用重啟實例了。方便了DBA們進行臨時性的調整。 > [mysql的復制配置參考](https://blog.csdn.net/zhouchang3/article/details/53470250),建議盡量配置在slave上。 ## 配置 **查看當前配置** ~~~ # 以下參數為空,代表還未配置復制過濾 mysql@slave> show slave status\G *************************** 1. row *************************** .... Replicate_Do_DB: Replicate_Ignore_DB: Replicate_Do_Table: Replicate_Ignore_Table: Replicate_Wild_Do_Table: Replicate_Wild_Ignore_Table: .... ~~~ **配置同步m1** 現在主庫上有m1,m2兩個庫,只想復制m1庫 ~~~ # 先停止sql線程 mysql@slave> STOP SLAVE SQL_THREAD; # 只同步m1 mysql@slave> CHANGE REPLICATION FILTER REPLICATE_DO_DB = (m1); # 啟動SQL線程 mysql@slave> start SLAVE SQL_THREAD; ~~~ 再次查看狀態: ![](https://i.vgy.me/jqfNRE.png) **恢復同步** ~~~ mysql@slave> STOP SLAVE SQL_THREAD; mysql@slave> CHANGE REPLICATION FILTER REPLICATE_DO_DB = (); mysql@slave> start SLAVE SQL_THREAD; ~~~ **只同步某寫表** 同步db1庫以“t1”或者“t2”開頭的表 ~~~ mysql@slave> CHANGE REPLICATION FILTER -> REPLICATE_WILD_DO_TABLE = ('db1.t1%'), -> REPLICATE_WILD_IGNORE_TABLE = ('db1.t2%'); ~~~ 同庫過濾的話也可以這樣寫 ~~~ mysql@slave> CHANGE REPLICATION FILTER -> REPLICATE_WILD_DO_TABLE = ('db2.t1%','db2.t2%'); ~~~
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