mongodb添加arbiter节点的方法示例
前言
在创建mongodb的replicaset的时候,只是做成了1主2从,没有做成1主1从1仲裁。这我们将一个几点从replicaset中删除,再以仲裁节点的身份加入到replicaset中:
1.初始状态:
shard1ReplSet:PRIMARY>rs.status();rs.status(); { "set":"shard1ReplSet", "date":ISODate("2017-02-21T07:48:03.058Z"), "myState":1, "term":NumberLong(1), "heartbeatIntervalMillis":NumberLong(2000), "optimes":{ "lastCommittedOpTime":{ "ts":Timestamp(0,0), "t":NumberLong(-1) }, "appliedOpTime":{ "ts":Timestamp(1487663274,1), "t":NumberLong(1) }, "durableOpTime":{ "ts":Timestamp(1487587982,1), "t":NumberLong(-1) } }, "members":[ { "_id":0, "name":"10.13.0.130:22001", "health":1, "state":1, "stateStr":"PRIMARY", "uptime":76672, "optime":{ "ts":Timestamp(1487663274,1), "t":NumberLong(1) }, "optimeDate":ISODate("2017-02-21T07:47:54Z"), "electionTime":Timestamp(1487587993,1), "electionDate":ISODate("2017-02-20T10:53:13Z"), "configVersion":1, "self":true }, { "_id":1, "name":"10.13.0.131:22001", "health":1, "state":2, "stateStr":"SECONDARY", "uptime":75300, "optime":{ "ts":Timestamp(1487663274,1), "t":NumberLong(1) }, "optimeDurable":{ "ts":Timestamp(1487587982,1), "t":NumberLong(-1) }, "optimeDate":ISODate("2017-02-21T07:47:54Z"), "optimeDurableDate":ISODate("2017-02-20T10:53:02Z"), "lastHeartbeat":ISODate("2017-02-21T07:48:02.150Z"), "lastHeartbeatRecv":ISODate("2017-02-21T07:48:02.215Z"), "pingMs":NumberLong(0), "syncingTo":"10.13.0.132:22001", "configVersion":1 }, { "_id":2, "name":"10.13.0.132:22001", "health":1, "state":2, "stateStr":"SECONDARY", "uptime":75300, "optime":{ "ts":Timestamp(1487663274,1), "t":NumberLong(1) }, "optimeDurable":{ "ts":Timestamp(1487587982,1), "t":NumberLong(-1) }, "optimeDate":ISODate("2017-02-21T07:47:54Z"), "optimeDurableDate":ISODate("2017-02-20T10:53:02Z"), "lastHeartbeat":ISODate("2017-02-21T07:48:02.889Z"), "lastHeartbeatRecv":ISODate("2017-02-21T07:48:01.503Z"), "pingMs":NumberLong(0), "syncingTo":"10.13.0.130:22001", "configVersion":1 } ], "ok":1 } shard1ReplSet:PRIMARY> shard1ReplSet:PRIMARY> shard1ReplSet:PRIMARY> shard1ReplSet:PRIMARY>
2.删除节点:
shard1ReplSet:PRIMARY>rs.remove("10.13.0.132:22001");rs.remove("10.13.0.132:22001"); {"ok":1} shard1ReplSet:PRIMARY>rs.status();rs.status(); { "set":"shard1ReplSet", "date":ISODate("2017-02-21T07:50:52.934Z"), "myState":1, "term":NumberLong(1), "heartbeatIntervalMillis":NumberLong(2000), "optimes":{ "lastCommittedOpTime":{ "ts":Timestamp(0,0), "t":NumberLong(-1) }, "appliedOpTime":{ "ts":Timestamp(1487663447,1), "t":NumberLong(1) }, "durableOpTime":{ "ts":Timestamp(1487587982,1), "t":NumberLong(-1) } }, "members":[ { "_id":0, "name":"10.13.0.130:22001", "health":1, "state":1, "stateStr":"PRIMARY", "uptime":76841, "optime":{ "ts":Timestamp(1487663447,1), "t":NumberLong(1) }, "optimeDate":ISODate("2017-02-21T07:50:47Z"), "electionTime":Timestamp(1487587993,1), "electionDate":ISODate("2017-02-20T10:53:13Z"), "configVersion":2, "self":true }, { "_id":1, "name":"10.13.0.131:22001", "health":1, "state":2, "stateStr":"SECONDARY", "uptime":75470, "optime":{ "ts":Timestamp(1487663447,1), "t":NumberLong(1) }, "optimeDurable":{ "ts":Timestamp(1487587982,1), "t":NumberLong(-1) }, "optimeDate":ISODate("2017-02-21T07:50:47Z"), "optimeDurableDate":ISODate("2017-02-20T10:53:02Z"), "lastHeartbeat":ISODate("2017-02-21T07:50:51.182Z"), "lastHeartbeatRecv":ISODate("2017-02-21T07:50:52.212Z"), "pingMs":NumberLong(0), "configVersion":2 } ], "ok":1 } shard1ReplSet:PRIMARY> shard1ReplSet:PRIMARY> shard1ReplSet:PRIMARY>
3.添加成arbiter节点:
shard1ReplSet:PRIMARY>rs.addArb("10.13.0.132:22001");rs.addArb("10.13.0.132:22001"); {"ok":1} shard1ReplSet:PRIMARY> shard1ReplSet:PRIMARY>rs.status();rs.status(); { "set":"shard1ReplSet", "date":ISODate("2017-02-21T07:54:05.161Z"), "myState":1, "term":NumberLong(1), "heartbeatIntervalMillis":NumberLong(2000), "optimes":{ "lastCommittedOpTime":{ "ts":Timestamp(0,0), "t":NumberLong(-1) }, "appliedOpTime":{ "ts":Timestamp(1487663637,1), "t":NumberLong(1) }, "durableOpTime":{ "ts":Timestamp(1487587982,1), "t":NumberLong(-1) } }, "members":[ { "_id":0, "name":"10.13.0.130:22001", "health":1, "state":1, "stateStr":"PRIMARY", "uptime":77034, "optime":{ "ts":Timestamp(1487663637,1), "t":NumberLong(1) }, "optimeDate":ISODate("2017-02-21T07:53:57Z"), "electionTime":Timestamp(1487587993,1), "electionDate":ISODate("2017-02-20T10:53:13Z"), "configVersion":3, "self":true }, { "_id":1, "name":"10.13.0.131:22001", "health":1, "state":2, "stateStr":"SECONDARY", "uptime":75662, "optime":{ "ts":Timestamp(1487663637,1), "t":NumberLong(1) }, "optimeDurable":{ "ts":Timestamp(1487587982,1), "t":NumberLong(-1) }, "optimeDate":ISODate("2017-02-21T07:53:57Z"), "optimeDurableDate":ISODate("2017-02-20T10:53:02Z"), "lastHeartbeat":ISODate("2017-02-21T07:54:03.210Z"), "lastHeartbeatRecv":ISODate("2017-02-21T07:54:02.211Z"), "pingMs":NumberLong(0), "configVersion":3 }, { "_id":2, "name":"10.13.0.132:22001", "health":1, "state":7, "stateStr":"ARBITER", "uptime":5, "lastHeartbeat":ISODate("2017-02-21T07:54:03.214Z"), "lastHeartbeatRecv":ISODate("2017-02-21T07:54:02.274Z"), "pingMs":NumberLong(0), "configVersion":3 } ], "ok":1 } shard1ReplSet:PRIMARY>
注1:mongodb3.4之后,虽然要求configserver为replicaset,但是不支持arbiter。
添加的时候,会报错:
cfgReplSet:PRIMARY>rs.addArb("10.13.0.132:21000");rs.addArb("10.13.0.132:21000"); { "ok":0, "errmsg":"Arbitersarenotallowedinreplicasetconfigurationsbeingusedforconfigservers", "code":103, "codeName":"NewReplicaSetConfigurationIncompatible" } cfgReplSet:PRIMARY>
注2:rs.reconfig()也可以进行操作,效果类似re.remove+rs.addArb,详见:mongodb官方文档-RemoveMembersfromReplicaSet
总结
以上就是关于mongodb添加arbiter节点的全部内容了,希望本文的内容对大家的学习或者工作能带来一定的帮助,如果有疑问大家可以留言交流。