MongoDB整理筆記の減少節點

標籤：

   當應用的壓力小時，可以減少一些節點來減少硬體資源的成本；總之這是一個長期且持續的工作。

   下面將剛剛添加的兩個新節點28013 和28014 從複製集中去除掉，只需執行rs.remove 指令就可以了，具體如下:

rs1:PRIMARY> rs.remove("localhost:28014"){ "ok" : 1 }rs1:PRIMARY> rs.remove("localhost:28013"){ "ok" : 1 }

    查看複製集狀態，可以看到現在只有28010、28011、28012 這三個成員，原來的28013 和28014 都成功去除了

rs1:PRIMARY> rs.status(){"set" : "rs1","date" : ISODate("2012-05-31T14:08:29Z"),"myState" : 1,"members" : [{"_id" : 0,"name" : "localhost:28010","health" : 1,"state" : 1,"stateStr" : "PRIMARY","optime" : {"t" : 1338473273000,"i" : 1},"optimeDate" : ISODate("2012-05-31T14:07:53Z"),"self" : true},{"_id" : 1,"name" : "localhost:28011","health" : 1,"state" : 2,"stateStr" : "SECONDARY","uptime" : 34,"optime" : {"t" : 1338473273000,"i" : 1},"optimeDate" : ISODate("2012-05-31T14:07:53Z"),"lastHeartbeat" : ISODate("2012-05-31T14:08:29Z")},{"_id" : 2,"name" : "localhost:28012","health" : 1,"state" : 2,"stateStr" : "SECONDARY","uptime" : 34,"optime" : {"t" : 1338473273000,"i" : 1},"optimeDate" : ISODate("2012-05-31T14:07:53Z"),"lastHeartbeat" : ISODate("2012-05-31T14:08:29Z")}],"ok" : 1}rs1:PRIMARY> 

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MongoDB整理筆記の減少節點