当应用的压力小时，可以减少一些节点来减少硬件资源的成本；总之这是一个长期且持续的工作。
下面将刚刚添加的两个新节点28013 和28014 从复制集中去除掉，只需执行rs.remove 指令就可以了，具体如下:
- rs1:PRIMARY>rs.remove("localhost:28014")
- {"ok":1}
- rs1:PRIMARY>rs.remove("localhost:28013")
- {"ok":1}
- rs1:PRIMARY>rs.status()
- {
- "set":"rs1",
- "date":ISODate("2012-05-31T14:08:29Z"),
- "myState":1,248); line-height:21px; margin:0px!important; padding:0px 3px 0px 10px!important"> "members":[
- {
- "_id":0,108); list-style:decimal-leading-zero outside; color:inherit; line-height:21px; margin:0px!important; padding:0px 3px 0px 10px!important"> "name":"localhost:28010",248); line-height:21px; margin:0px!important; padding:0px 3px 0px 10px!important"> "health":1,108); list-style:decimal-leading-zero outside; color:inherit; line-height:21px; margin:0px!important; padding:0px 3px 0px 10px!important"> "state":1,248); line-height:21px; margin:0px!important; padding:0px 3px 0px 10px!important"> "stateStr":"PRIMARY",108); list-style:decimal-leading-zero outside; color:inherit; line-height:21px; margin:0px!important; padding:0px 3px 0px 10px!important"> "optime":{
- "t":1338473273000,108); list-style:decimal-leading-zero outside; color:inherit; line-height:21px; margin:0px!important; padding:0px 3px 0px 10px!important"> "i":1
- },108); list-style:decimal-leading-zero outside; color:inherit; line-height:21px; margin:0px!important; padding:0px 3px 0px 10px!important"> "optimeDate":ISODate("2012-05-31T14:07:53Z"),248); line-height:21px; margin:0px!important; padding:0px 3px 0px 10px!important"> "self":true
- },108); list-style:decimal-leading-zero outside; color:inherit; line-height:21px; margin:0px!important; padding:0px 3px 0px 10px!important"> "_id":1,248); line-height:21px; margin:0px!important; padding:0px 3px 0px 10px!important"> "name":"localhost:28011",108); list-style:decimal-leading-zero outside; color:inherit; line-height:21px; margin:0px!important; padding:0px 3px 0px 10px!important"> "health":1,248); line-height:21px; margin:0px!important; padding:0px 3px 0px 10px!important"> "state":2,108); list-style:decimal-leading-zero outside; color:inherit; line-height:21px; margin:0px!important; padding:0px 3px 0px 10px!important"> "stateStr":"SECONDARY",248); line-height:21px; margin:0px!important; padding:0px 3px 0px 10px!important"> "uptime":34,248); line-height:21px; margin:0px!important; padding:0px 3px 0px 10px!important"> "lastHeartbeat":ISODate("2012-05-31T14:08:29Z")
- "_id":2,248); line-height:21px; margin:0px!important; padding:0px 3px 0px 10px!important"> "name":"localhost:28012",108); list-style:decimal-leading-zero outside; color:inherit; line-height:21px; margin:0px!important; padding:0px 3px 0px 10px!important"> }
- ],108); list-style:decimal-leading-zero outside; color:inherit; line-height:21px; margin:0px!important; padding:0px 3px 0px 10px!important"> "ok":1
- }
- rs1:PRIMARY>