MongoDB副本集部署

实验环境：准备三台服务器部署MongoDB副本集

1.MongoDB下载安装（三台服务器操作相同）

cd /data/mongodbwget https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-rhel70-4.4.18.tgz
tar xf mongodb-linux-x86_64-rhel70-4.4.18.tgzmv mongodb-linux-x86_64-rhel70-4.4.18 mongodb_install
##配置MongoDB环境变量
echo 'export PATH=/data/mongodb/mongodb_install/bin:$PATH' >> /etc/profile
source /etc/profile

2.创建配置文件（三台服务器操作相同）

mkdir /data/mongodb/{conf,data,log,keyfile} -pvim /data/mongodb/conf/mongod.conf
systemLog:destination: filelogAppend: truepath: /data/mongodb/log/mongod.log
storage:dbPath: /data/mongodb/datajournal:enabled: true
processManagement:fork: truepidFilePath: /data/mongodb/log/mongod.pidtimeZoneInfo: /usr/share/zoneinfo
net:port: 27017bindIp: 0.0.0.0
#security:
#  authorization: enabled
#  keyFile: /data/mongodb/keyfile/keyfile
replication:
##配置文件在三台服务器上此项可分别为，rs01,rs02,rs03replSetName: "rs01"

3.添加MongoDB用户，启动MongoDB服务

useradd mongodb -s /sbin/nologin
chown mongodb:mongodb /data/mongodb/ -R
su - mongodb -s /bin/bash
mongod -f /data/mongodb/conf/mongod.conf
exit

4.创建副本集

> conf={_id:'rs01',members:[
... {_id:0,host:'10.0.1.223:27017'},
... {_id:1,host:'10.0.1.224:27017'},
... {_id:2,host:'10.0.2.79:27017'}]
... }
{"_id" : "rs01","members" : [{"_id" : 0,"host" : "10.0.1.223:27017"},{"_id" : 1,"host" : "10.0.1.224:27017"},{"_id" : 2,"host" : "10.0.2.79:27017"}]
}
> rs.initiate(conf);
{ "ok" : 1 }

查看集群状态

rs01:PRIMARY> rs.status()
{"set" : "rs01","date" : ISODate("2022-09-22T02:36:07.484Z"),"myState" : 1,"term" : NumberLong(1),"syncingTo" : "","syncSourceHost" : "","syncSourceId" : -1,"heartbeatIntervalMillis" : NumberLong(2000),"majorityVoteCount" : 2,"writeMajorityCount" : 2,"optimes" : {"lastCommittedOpTime" : {"ts" : Timestamp(1663814164, 1),"t" : NumberLong(1)},"lastCommittedWallTime" : ISODate("2022-09-22T02:36:04.376Z"),"readConcernMajorityOpTime" : {"ts" : Timestamp(1663814164, 1),"t" : NumberLong(1)},"readConcernMajorityWallTime" : ISODate("2022-09-22T02:36:04.376Z"),"appliedOpTime" : {"ts" : Timestamp(1663814164, 1),"t" : NumberLong(1)},"durableOpTime" : {"ts" : Timestamp(1663814164, 1),"t" : NumberLong(1)},"lastAppliedWallTime" : ISODate("2022-09-22T02:36:04.376Z"),"lastDurableWallTime" : ISODate("2022-09-22T02:36:04.376Z")},"lastStableRecoveryTimestamp" : Timestamp(1663814134, 1),"lastStableCheckpointTimestamp" : Timestamp(1663814134, 1),"electionCandidateMetrics" : {"lastElectionReason" : "electionTimeout","lastElectionDate" : ISODate("2022-09-22T02:32:34.301Z"),"electionTerm" : NumberLong(1),"lastCommittedOpTimeAtElection" : {"ts" : Timestamp(0, 0),"t" : NumberLong(-1)},"lastSeenOpTimeAtElection" : {"ts" : Timestamp(1663813944, 1),"t" : NumberLong(-1)},"numVotesNeeded" : 2,"priorityAtElection" : 1,"electionTimeoutMillis" : NumberLong(10000),"numCatchUpOps" : NumberLong(0),"newTermStartDate" : ISODate("2022-09-22T02:32:34.334Z"),"wMajorityWriteAvailabilityDate" : ISODate("2022-09-22T02:32:34.913Z")},"members" : [{"_id" : 0,"name" : "192.168.8.5:27017","health" : 1,"state" : 1,"stateStr" : "PRIMARY","uptime" : 252,"optime" : {"ts" : Timestamp(1663814164, 1),"t" : NumberLong(1)},"optimeDate" : ISODate("2022-09-22T02:36:04Z"),"syncingTo" : "","syncSourceHost" : "","syncSourceId" : -1,"infoMessage" : "","electionTime" : Timestamp(1663813954, 1),"electionDate" : ISODate("2022-09-22T02:32:34Z"),"configVersion" : 1,"self" : true,"lastHeartbeatMessage" : ""},{"_id" : 1,"name" : "192.168.8.6:27017","health" : 1,"state" : 2,"stateStr" : "SECONDARY","uptime" : 223,"optime" : {"ts" : Timestamp(1663814164, 1),"t" : NumberLong(1)},"optimeDurable" : {"ts" : Timestamp(1663814164, 1),"t" : NumberLong(1)},"optimeDate" : ISODate("2022-09-22T02:36:04Z"),"optimeDurableDate" : ISODate("2022-09-22T02:36:04Z"),"lastHeartbeat" : ISODate("2022-09-22T02:36:06.468Z"),"lastHeartbeatRecv" : ISODate("2022-09-22T02:36:07.087Z"),"pingMs" : NumberLong(0),"lastHeartbeatMessage" : "","syncingTo" : "192.168.8.5:27017","syncSourceHost" : "192.168.8.5:27017","syncSourceId" : 0,"infoMessage" : "","configVersion" : 1},{"_id" : 2,"name" : "192.168.8.7:27017","health" : 1,"state" : 2,"stateStr" : "SECONDARY","uptime" : 223,"optime" : {"ts" : Timestamp(1663814164, 1),"t" : NumberLong(1)},"optimeDurable" : {"ts" : Timestamp(1663814164, 1),"t" : NumberLong(1)},"optimeDate" : ISODate("2022-09-22T02:36:04Z"),"optimeDurableDate" : ISODate("2022-09-22T02:36:04Z"),"lastHeartbeat" : ISODate("2022-09-22T02:36:06.475Z"),"lastHeartbeatRecv" : ISODate("2022-09-22T02:36:07.088Z"),"pingMs" : NumberLong(0),"lastHeartbeatMessage" : "","syncingTo" : "192.168.8.5:27017","syncSourceHost" : "192.168.8.5:27017","syncSourceId" : 0,"infoMessage" : "","configVersion" : 1}],"ok" : 1,"$clusterTime" : {"clusterTime" : Timestamp(1663814164, 1),"signature" : {"hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),"keyId" : NumberLong(0)}},"operationTime" : Timestamp(1663814164, 1)
}

4.开启用户认证

rs01:PRIMARY> use admin
rs01:PRIMARY>
db.createUser({user:"root",pwd:"********",roles:[{role:"root",db:"admin"}]})Successfully added user: {"user" : "root","roles" : [{"role" : "root","db" : "admin"}]
}

5.停止mongodb集群，首先停止从节点，最后停止主节点

mongod -f /data/mongodb/conf/mongod.conf --shutdown

6.创建keyfile文件

openssl rand -base64 756 > /data/mongodb/keyfile/keyfile
chmod 600 /data/mongodb/keyfile/keyfile
chown mongodb:mongodb /data/mongodb/keyfile/keyfile
scp keyfile 10.0.1.224:/data/mongodb/keyfile/
scp keyfile 10.0.2.79:/data/mongodb/keyfile/

7.修改mongodb配置文件，三台机器都修改

vim /data/mongodb/conf/mongod.conf
systemLog:destination: filelogAppend: truepath: /data/mongodb/log/mongod.log
storage:dbPath: /data/mongodb/datajournal:enabled: true
processManagement:fork: truepidFilePath: /data/mongodb/log/mongod.pidtimeZoneInfo: /usr/share/zoneinfo
net:port: 27017bindIp: 0.0.0.0
security:authorization: enabledkeyFile: /data/mongodb/keyfile/keyfile
replication:replSetName: "rs01"

8.启动集群,先启动主节点，再启动从节点

su - mongodb -s /bin/bash
mongod -f /data/mongodb/conf/mongod.conf
exit

9.登录验证

mongo
rs01:PRIMARY> use admin
switched to db admin
rs01:PRIMARY> db.auth("root","******")
1
rs01:PRIMARY> show dbs
admin   0.000GB
config  0.000GB
local   0.000GB
rs01:PRIMARY>

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MongoDB副本集部署

1.MongoDB下载安装（三台服务器操作相同）

2.创建配置文件（三台服务器操作相同）

3.添加MongoDB用户，启动MongoDB服务

4.创建副本集

4.开启用户认证

5.停止mongodb集群，首先停止从节点，最后停止主节点

6.创建keyfile文件

7.修改mongodb配置文件，三台机器都修改

8.启动集群,先启动主节点，再启动从节点

9.登录验证

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