mongodb添加arbiter节点怎样做？得注意什么？

发布时间：2023-08-25 14:56:43 所属栏目：系统来源：

导读：这篇文章主要给大家分享mongodb添加arbiter节点的步骤和过程，对大家了解mongodb添加节点有一定的帮助，感兴趣的朋友可以参考一下，希望大家阅读完这篇文章能有所收获，下面我们一起来学习一下吧。

在创建mo

这篇文章主要给大家分享mongodb添加arbiter节点的步骤和过程，对大家了解mongodb添加节点有一定的帮助，感兴趣的朋友可以参考一下，希望大家阅读完这篇文章能有所收获，下面我们一起来学习一下吧。

    在创建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：

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： mongodb 3.4之后，虽然要求config server为replica set，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" : "Arbiters are not allowed in replica set configurations being used for config servers",

  "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- Remove Members from Replica Set

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