修改副本集端口(带仲裁节点)

需求:因为端口调整，需要改变副本的备份集

1.查看当前副本集配置情况

[root@localhost bin]# ./mongo localhost:20001
repltest:PRIMARY> use admin
repltest:PRIMARY> db.auth("sa","123456")
repltest:PRIMARY> rs.conf()
{
        "_id" : "repltest",
        "version" : 134592,
        "members" : [
                {
                        "_id" : 5,
                        "host" : "192.168.1.134:20001",
                        "arbiterOnly" : false,
                        "buildIndexes" : true,
                        "hidden" : false,
                        "priority" : 1,
                        "tags" : {

                        },
                        "slaveDelay" : 0,
                        "votes" : 1
                },
                {
                        "_id" : 7,
                        "host" : "192.168.1.135:20002",
                        "arbiterOnly" : false,
                        "buildIndexes" : true,
                        "hidden" : false,
                        "priority" : 1,
                        "tags" : {

                        },
                        "slaveDelay" : 0,
                        "votes" : 1
                },
                {
                        "_id" : 8,
                        "host" : "192.168.1.135:20003",
                        "arbiterOnly" : true,
                        "buildIndexes" : true,
                        "hidden" : false,
                        "priority" : 1,
                        "tags" : {

                        },
                        "slaveDelay" : 0,
                        "votes" : 1
                }
        ],
        "settings" : {
                "chainingAllowed" : true,
                "heartbeatTimeoutSecs" : 10,
                "getLastErrorModes" : {

                },
                "getLastErrorDefaults" : {
                        "w" : 1,
                        "wtimeout" : 0
                }
        }
}

注意这里的_id,代表的是记录的id,而不是members[]对应的索引值,members的索引值是根据显示出来的按照0,1,2这样排序的
如上面的输出_id与members索引值的对应关系如下:
"_id" : 5 -->members[0]
"_id" : 7 -->members[1]
"_id" : 8 -->members[2]

 

2.配置从节点192.168.1.135
需求:端口由原来的20002修改为10002

2.1停掉该节点
[root@localhost bin]# ./mongo localhost:20002
repltest:SECONDARY> use admin
repltest:SECONDARY> db.auth("sa","123456")
repltest:SECONDARY> db.shutdownServer()

2.2修改配置文件(mongo.cnf)将端口20002修改为10002
port = 10002

2.3启动该重库
[root@localhost bin]# ./mongod -f /opt/mongodb3015_slave/conf/mongo.cnf

2.4登陆主库执行如下命令
[root@localhost bin]# ./mongo localhost:20001
repltest:PRIMARY> use admin
repltest:PRIMARY> db.auth("sa","123456")

我们这里修改的"_id"为7的记录,对应的members索引值为[1]
repltest:PRIMARY> conf=rs.conf()
repltest:PRIMARY> conf.members[1].host="192.168.1.135:10002"
192.168.1.135:10002
repltest:PRIMARY> rs.reconfig(conf,{"force":true})

 

2.5查看配置是否生效

repltest:PRIMARY> rs.config()
{
        "_id" : "repltest",
        "version" : 161200,
        "members" : [
                {
                        "_id" : 5,
                        "host" : "192.168.1.134:20001",
                        "arbiterOnly" : false,
                        "buildIndexes" : true,
                        "hidden" : false,
                        "priority" : 1,
                        "tags" : {

                        },
                        "slaveDelay" : 0,
                        "votes" : 1
                },
                {
                        "_id" : 7,
                        "host" : "192.168.1.135:10002",
                        "arbiterOnly" : false,
                        "buildIndexes" : true,
                        "hidden" : false,
                        "priority" : 1,
                        "tags" : {

                        },
                        "slaveDelay" : 0,
                        "votes" : 1
                },
                {
                        "_id" : 8,
                        "host" : "192.168.1.135:20003",
                        "arbiterOnly" : true,
                        "buildIndexes" : true,
                        "hidden" : false,
                        "priority" : 1,
                        "tags" : {

                        },
                        "slaveDelay" : 0,
                        "votes" : 1
                }
        ],
        "settings" : {
                "chainingAllowed" : true,
                "heartbeatTimeoutSecs" : 10,
                "getLastErrorModes" : {

                },
                "getLastErrorDefaults" : {
                        "w" : 1,
                        "wtimeout" : 0
                }
        }
}

repltest:PRIMARY> rs.status()
{
        "set" : "repltest",
        "date" : ISODate("2019-02-22T05:46:16.932Z"),
        "myState" : 1,
        "members" : [
                {
                        "_id" : 5,
                        "name" : "192.168.1.134:20001",
                        "health" : 1,
                        "state" : 1,
                        "stateStr" : "PRIMARY",
                        "uptime" : 102966,
                        "optime" : Timestamp(1550806716, 1),
                        "optimeDate" : ISODate("2019-02-22T03:38:36Z"),
                        "electionTime" : Timestamp(1550804772, 1),
                        "electionDate" : ISODate("2019-02-22T03:06:12Z"),
                        "configVersion" : 161200,
                        "self" : true
                },
                {
                        "_id" : 7,
                        "name" : "192.168.1.135:10002",
                        "health" : 1,
                        "state" : 5,
                        "stateStr" : "STARTUP2",
                        "uptime" : 3,
                        "optime" : Timestamp(1550806716, 1),
                        "optimeDate" : ISODate("2019-02-22T03:38:36Z"),
                        "lastHeartbeat" : ISODate("2019-02-22T05:46:15.786Z"),
                        "lastHeartbeatRecv" : ISODate("2019-02-22T05:46:15.851Z"),
                        "pingMs" : 1,
                        "configVersion" : 161200
                },
                {
                        "_id" : 8,
                        "name" : "192.168.1.135:20003",
                        "health" : 1,
                        "state" : 7,
                        "stateStr" : "ARBITER",
                        "uptime" : 7658,
                        "lastHeartbeat" : ISODate("2019-02-22T05:46:15.765Z"),
                        "lastHeartbeatRecv" : ISODate("2019-02-22T05:46:15.483Z"),
                        "pingMs" : 0,
                        "configVersion" : 161200
                }
        ],
        "ok" : 1
}

按照上面的方法分表修改其他机器