mongodb - Replication Set搭建过程

1.创建目录

mkdir -p /mongodb/data/r1
mkdir -p /mongodb/data/r2
mkdir -p /mongodb/data/r3
mkdir -p /mongodb/mlog

2.启动三个实例，并声明实例属于复制集

./mongod --dbpath /mongodb/data/r1  --logpath /mongodb/mlog/r1.log --fork --port 27017 --replSet ybb --smallfiles
./mongod --dbpath /mongodb/data/r2  --logpath /mongodb/mlog/r2.log --fork --port 27018 --replSet ybb --smallfiles
./mongod --dbpath /mongodb/data/r3  --logpath /mongodb/mlog/r3.log --fork --port 27019 --replSet ybb --smallfiles

3.复制集初始化
这一步初始化的复制集只是包含当前节点

# ./mongo --port=27017
> rs.initiate()
{
        "info2" : "no configuration specified. Using a default configuration for the set",
        "me" : "cc.example.com:27017",
        "ok" : 1
}

4.验证复制集初始化配置

这一步初始化的复制集只是包含当前节点

ybb:OTHER> rs.conf()
{
        "_id" : "ybb",
        "version" : 1,
        "protocolVersion" : NumberLong(1),
        "members" : [
                {
                        "_id" : 0,
                        "host" : "cc.example.com:27017",
                        "arbiterOnly" : false,
                        "buildIndexes" : true,
                        "hidden" : false,
                        "priority" : 1,
                        "tags" : {

                        },
                        "slaveDelay" : NumberLong(0),
                        "votes" : 1
                }
        ],
        "settings" : {
                "chainingAllowed" : true,
                "heartbeatIntervalMillis" : 2000,
                "heartbeatTimeoutSecs" : 10,
                "electionTimeoutMillis" : 10000,
                "getLastErrorModes" : {

                },
                "getLastErrorDefaults" : {
                        "w" : 1,
                        "wtimeout" : 0
                }
        }
}
ybb:PRIMARY>

5.添加其它节点

ybb:PRIMARY> rs.add("cc.example.com:27018")rs.add("cc.example.com:27018")
{ "ok" : 1 }
ybb:PRIMARY> rs.add("cc.example.com:27019")rs.add("cc.example.com:27019")
{ "ok" : 1 }
ybb:PRIMARY>

6.检查复制集的状态

ybb:PRIMARY> rs.status()rs.status()
{
        "set" : "ybb",
        "date" : ISODate("2016-03-15T05:26:06.682Z"),
        "myState" : 1,
        "term" : NumberLong(1),
        "heartbeatIntervalMillis" : NumberLong(2000),
        "members" : [
                {
                        "_id" : 0,
                        "name" : "cc.example.com:27017",
                        "health" : 1,
                        "state" : 1,
                        "stateStr" : "PRIMARY",
                        "uptime" : 482,
                        "optime" : {
                                "ts" : Timestamp(1458019522, 1),
                                "t" : NumberLong(1)
                        },
                        "optimeDate" : ISODate("2016-03-15T05:25:22Z"),
                        "electionTime" : Timestamp(1458019202, 2),
                        "electionDate" : ISODate("2016-03-15T05:20:02Z"),
                        "configVersion" : 3,
                        "self" : true
                },
                {
                        "_id" : 1,
                        "name" : "cc.example.com:27018",
                        "health" : 1,
                        "state" : 2,
                        "stateStr" : "SECONDARY",
                        "uptime" : 47,
                        "optime" : {
                                "ts" : Timestamp(1458019522, 1),
                                "t" : NumberLong(1)
                        },
                        "optimeDate" : ISODate("2016-03-15T05:25:22Z"),
                        "lastHeartbeat" : ISODate("2016-03-15T05:26:04.822Z"),
                        "lastHeartbeatRecv" : ISODate("2016-03-15T05:26:05.826Z"),
                        "pingMs" : NumberLong(0),
                        "syncingTo" : "cc.example.com:27017",
                        "configVersion" : 3
                },
                {
                        "_id" : 2,
                        "name" : "cc.example.com:27019",
                        "health" : 1,
                        "state" : 2,
                        "stateStr" : "SECONDARY",
                        "uptime" : 43,
                        "optime" : {
                                "ts" : Timestamp(1458019522, 1),
                                "t" : NumberLong(1)
                        },
                        "optimeDate" : ISODate("2016-03-15T05:25:22Z"),
                        "lastHeartbeat" : ISODate("2016-03-15T05:26:04.822Z"),
                        "lastHeartbeatRecv" : ISODate("2016-03-15T05:26:04.821Z"),
                        "pingMs" : NumberLong(0),
                        "configVersion" : 3
                }
        ],
        "ok" : 1
}
ybb:PRIMARY>

7.查看复制集的最新配置

ybb:PRIMARY> rs.config();rs.config();
{
        "_id" : "ybb",
        "version" : 3,
        "protocolVersion" : NumberLong(1),
        "members" : [
                {
                        "_id" : 0,
                        "host" : "cc.example.com:27017",
                        "arbiterOnly" : false,
                        "buildIndexes" : true,
                        "hidden" : false,
                        "priority" : 1,
                        "tags" : {

                        },
                        "slaveDelay" : NumberLong(0),
                        "votes" : 1
                },
                {
                        "_id" : 1,
                        "host" : "cc.example.com:27018",
                        "arbiterOnly" : false,
                        "buildIndexes" : true,
                        "hidden" : false,
                        "priority" : 1,
                        "tags" : {

                        },
                        "slaveDelay" : NumberLong(0),
                        "votes" : 1
                },
                {
                        "_id" : 2,
                        "host" : "cc.example.com:27019",
                        "arbiterOnly" : false,
                        "buildIndexes" : true,
                        "hidden" : false,
                        "priority" : 1,
                        "tags" : {

                        },
                        "slaveDelay" : NumberLong(0),
                        "votes" : 1
                }
        ],
        "settings" : {
                "chainingAllowed" : true,
                "heartbeatIntervalMillis" : 2000,
                "heartbeatTimeoutSecs" : 10,
                "electionTimeoutMillis" : 10000,
                "getLastErrorModes" : {

                },
                "getLastErrorDefaults" : {
                        "w" : 1,
                        "wtimeout" : 0
                }
        }
}
ybb:PRIMARY>