一，利用rs.reconfig，來(lái)添加，刪除節(jié)點(diǎn)

1，添加節(jié)點(diǎn)

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}]};  //添加節(jié)點(diǎn) 
 
repmore:PRIMARY> rs.reconfig(config);  //使配置生效 
 
repmore:PRIMARY> rs.status();   //查看節(jié)點(diǎn)狀態(tài)