mongodb replica set 添加 删除 节点 2种方法
replica set多服务器主从,添加,删除节点,肯定会经常遇到的。下面详细说明一下,添加,删除节点的2种方法。 一,利用rs.reconfig,来添加,删除节点 1,添加节点 repmore:PRIMARY config = {_id:"repmore",members:[{_id:0,host:'127.0.0.1:27017',priorit
replica set多服务器主从,添加,删除节点,肯定会经常遇到的。下面详细说明一下,添加,删除节点的2种方法。
一,利用rs.reconfig,来添加,删除节点
1,添加节点
repmore:PRIMARY> config = {_id:"repmore",members:[{_id:0,host:'127.0.0.1:27017',priority :2},{_id:1,host:'127.0.0.1:27018',priority:1}]}; //添加节点 repmore:PRIMARY> rs.reconfig(config); //使配置生效 repmore:PRIMARY> rs.status(); //查看节点状态
节点添加成功。
注意:新增节点的replSet要和其他节点要一样
2,删除节点
repmore:PRIMARY> config = {_id:"repmore",members:[{_id:0,host:'127.0.0.1:27017',priority :2}]}; //删除节点 repmore:PRIMARY> rs.reconfig(config); //使配置生效 repmore:PRIMARY> rs.status(); //查看节点状态
二,利用rs.add和rs.remove来添加删除节点
repmore:PRIMARY> rs.add("127.0.0.1:27018"); //添加节点 repmore:PRIMARY> rs.remove("127.0.0.1:27018"); //删除节
注意:利用rs.add和rs.remove是不用rs.reconfig来使用配置生效的。



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