centos7 安装mongodb replica set 集群搭建

1.服务器分配

os1:PRIMARY

os2:SECONDARY

os3:ARBITER

2.下载mongodb 对应的安装包

下载地址：https://www.mongodb.com/download-center/community

下载对应的安装包，如果当前版本没有对应系统的版本就找其他版本

3.   mkdir /app

4.上传压缩包到/app目录并解压

tar -zxvf mongodb-linux-x86_64-4.0.16.tgz

mv mongodb-linux-x86_64-4.0.16 mongodb

5.创建配置文件

mkdir /app/mongodb/conf

cd /app/mongodb/conf

touch mongo.conf

mongo.conf文件内容

dbpath=/app/mongodb/data
logpath=/app/mongodb/log/mongo.log
pidfilepath=/app/mongodb/pid/mongo.pid
directoryperdb=true
logappend=true
replSet=testrs
bind_ip=192.168.5.16
port=27017
oplogSize=10000
fork=true
noprealloc=true

6.创建mongo.conf文件中对应的目录

mkdir /app/mongodb/data

mkdir /app/mongodb/log

mkdir /app/mongodb/pid

7.复制mongodb文件 到其他主机

scp -r  /app/mongodb os2:/app/

scp -r  /app/mongodb os3:/app/

8.修改其他主机的mongo.conf文件中bind_ip为本机ip

见5mongo.conf文件内容

9.所有主机启动mongodb

cd  /app/mongodb/bin

./mongod -f /app/mongodb/conf/mongo.conf

10.在非ARBITER的主机连接mongodb

cd  /app/mongodb/bin

./mongo 192.168.5.17:27017

11.配置config

cfg={_id:"testrs",members:[{_id:0,host:"192.168.5.16:27017",priority:0},{_id:1,host:"192.168.5.17:27017",priority:1},{_id:2,host:"192.168.5.18:27017",arbiterOnly:true}]};

 12.初始化

rs.initiate(cfg)

 13.查看状态验证是否配置成功

rs.status()

##################
###窗口的状态显示如下####
##################


{
    "set" : "testrs",
    "date" : ISODate("2020-03-06T07:53:22.228Z"),
    "myState" : 1,
    "term" : NumberLong(1),
    "syncingTo" : "",
    "syncSourceHost" : "",
    "syncSourceId" : -1,
    "heartbeatIntervalMillis" : NumberLong(2000),
    "optimes" : {
        "lastCommittedOpTime" : {
            "ts" : Timestamp(1583481191, 1),
            "t" : NumberLong(1)
        },
        "readConcernMajorityOpTime" : {
            "ts" : Timestamp(1583481191, 1),
            "t" : NumberLong(1)
        },
        "appliedOpTime" : {
            "ts" : Timestamp(1583481191, 1),
            "t" : NumberLong(1)
        },
        "durableOpTime" : {
            "ts" : Timestamp(1583481191, 1),
            "t" : NumberLong(1)
        }
    },
    "lastStableCheckpointTimestamp" : Timestamp(1583481190, 1),
    "electionCandidateMetrics" : {
        "lastElectionReason" : "electionTimeout",
        "lastElectionDate" : ISODate("2020-03-06T07:53:08.870Z"),
        "electionTerm" : NumberLong(1),
        "lastCommittedOpTimeAtElection" : {
            "ts" : Timestamp(0, 0),
            "t" : NumberLong(-1)
        },
        "lastSeenOpTimeAtElection" : {
            "ts" : Timestamp(1583481177, 1),
            "t" : NumberLong(-1)
        },
        "numVotesNeeded" : 2,
        "priorityAtElection" : 1,
        "electionTimeoutMillis" : NumberLong(10000),
        "numCatchUpOps" : NumberLong(0),
        "newTermStartDate" : ISODate("2020-03-06T07:53:10.272Z"),
        "wMajorityWriteAvailabilityDate" : ISODate("2020-03-06T07:53:11.379Z")
    },
    "members" : [
        {
            "_id" : 0,
            "name" : "192.168.5.16:27017",
            "health" : 1,
            "state" : 2,
            "stateStr" : "SECONDARY",
            "uptime" : 24,
            "optime" : {
                "ts" : Timestamp(1583481191, 1),
                "t" : NumberLong(1)
            },
            "optimeDurable" : {
                "ts" : Timestamp(1583481191, 1),
                "t" : NumberLong(1)
            },
            "optimeDate" : ISODate("2020-03-06T07:53:11Z"),
            "optimeDurableDate" : ISODate("2020-03-06T07:53:11Z"),
            "lastHeartbeat" : ISODate("2020-03-06T07:53:20.884Z"),
            "lastHeartbeatRecv" : ISODate("2020-03-06T07:53:21.402Z"),
            "pingMs" : NumberLong(0),
            "lastHeartbeatMessage" : "",
            "syncingTo" : "192.168.5.17:27017",
            "syncSourceHost" : "192.168.5.17:27017",
            "syncSourceId" : 1,
            "infoMessage" : "",
            "configVersion" : 1
        },
        {
            "_id" : 1,
            "name" : "192.168.5.17:27017",
            "health" : 1,
            "state" : 1,
            "stateStr" : "PRIMARY",
            "uptime" : 575,
            "optime" : {
                "ts" : Timestamp(1583481191, 1),
                "t" : NumberLong(1)
            },
            "optimeDate" : ISODate("2020-03-06T07:53:11Z"),
            "syncingTo" : "",
            "syncSourceHost" : "",
            "syncSourceId" : -1,
            "infoMessage" : "could not find member to sync from",
            "electionTime" : Timestamp(1583481188, 1),
            "electionDate" : ISODate("2020-03-06T07:53:08Z"),
            "configVersion" : 1,
            "self" : true,
            "lastHeartbeatMessage" : ""
        },
        {
            "_id" : 2,
            "name" : "192.168.5.18:27017",
            "health" : 1,
            "state" : 7,
            "stateStr" : "ARBITER",
            "uptime" : 24,
            "lastHeartbeat" : ISODate("2020-03-06T07:53:20.884Z"),
            "lastHeartbeatRecv" : ISODate("2020-03-06T07:53:20.253Z"),
            "pingMs" : NumberLong(0),
            "lastHeartbeatMessage" : "",
            "syncingTo" : "",
            "syncSourceHost" : "",
            "syncSourceId" : -1,
            "infoMessage" : "",
            "configVersion" : 1
        }
    ],
    "ok" : 1,
    "operationTime" : Timestamp(1583481191, 1),
    "$clusterTime" : {
        "clusterTime" : Timestamp(1583481191, 1),
        "signature" : {
            "hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
            "keyId" : NumberLong(0)
        }
    }
}