学习数据库的最好方法，是从官方文档开始看起。mongodb的官方文档在这里，但是也有中文翻译的版本，可见这里(中文翻译貌似还没完全翻译完，还有不少段落是英文的。)。 mongodb目前最新的版本是3.4版本。注：3.4版本不在支持x86 32位的系统。 (1)安装： (1.1) 准备3台机器，分别是 […]
mongodb添加arbiter节点
创建mongodb的replica set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replica set中删除，再以仲裁节点的身份加入到replica set中： 1.初始状态：
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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： [cra […]