两台机器

1.在/etc/hosts文件中写上
192.168.255.133 worker1
192.168.255.134 worker2

2.修改配置文件/etc/mongdb.conf
bindIp: 0.0.0.0 #供所有机器访问
replication:
replSetName: rs # 给副本集取名字叫rs

3.启动
mongod

4.初始化副本集

rs.initiate()

5.添加成员节点

rs.add("worker2:27017")

rs.addArb("182.48.115.239:27017") #添加仲裁节点

6.进入mongodb shell中查看配置

>>> rs.conf()
MongoDB Enterprise rs:PRIMARY> rs.conf()
{
        "_id" : "rs",
        "version" : 2,
        "protocolVersion" : NumberLong(1),
        "writeConcernMajorityJournalDefault" : true,
        "members" : [
                {
                        "_id" : 0,
                        "host" : "worker1:27017",
                        "arbiterOnly" : false,
                        "buildIndexes" : true,
                        "hidden" : false,
                        "priority" : 1,
                        "tags" : {

                        },
                        "slaveDelay" : NumberLong(0),
                        "votes" : 1
                },
                {
                        "_id" : 1,
                        "host" : "worker2:27017",
                        "arbiterOnly" : false,
                        "buildIndexes" : true,
                        "hidden" : false,
                        "priority" : 1,
                        "tags" : {

                        },
                        "slaveDelay" : NumberLong(0),
                        "votes" : 1
                }
        ],
        "settings" : {
                "chainingAllowed" : true,
                "heartbeatIntervalMillis" : 2000,
                "heartbeatTimeoutSecs" : 10,
                "electionTimeoutMillis" : 10000,
                "catchUpTimeoutMillis" : -1,
                "catchUpTakeoverDelayMillis" : 30000,
                "getLastErrorModes" : {

                },
                "getLastErrorDefaults" : {
                        "w" : 1,
                        "wtimeout" : 0
                },
                "replicaSetId" : ObjectId("5dd12530c247798c40d9cfef")
        }
}