mongodb副本集配置部署

mongodb副本集部署和配置

版本：mongodb4.4.2 

mongodb单机副本集部署步骤如下： 

       [root@localhost software]# pwd

/data/software 

[root@localhost software]# ll

total 87720

-rw-r--r--. 1 root root 16137908 Jan  3 21:58 gcc-9.3.0.tar.gz

-rw-r--r--. 1 root root 71386000 Nov 16 11:21 mongodb-linux-x86_64-rhel70-4.4.2.tgz

-rw-r--r--. 1 root root    25548 Apr  7  2017 mysql57-community-release-el7-10.noarch.rpm

drwxrwxr-x. 7 root root     4096 Jan  3 22:30 redis-6.0.9

-rw-r--r--. 1 root root  2261418 Oct 27 03:14 redis-6.0.9.tar.gz 

解压mongodb且进入mongodb目录，创建27011，27012，27013端口对应的储存数据文件夹：

tar -zxvf mongodb-linux-x86_64-rhel70-4.4.2.tgz 

mv mongodb-linux-x86_64-rhel70-4.4.2 mongodb-4.4.2 

cd mongodb-4.4.2/ 

mkdir -p /data/software/mongodb-4.4.2/27011/logs/

mkdir -p /data/software/mongodb-4.4.2/27011/data/

mkdir -p /data/software/mongodb-4.4.2/27011/key/

mkdir -p /data/software/mongodb-4.4.2/27011/pid/

 

mkdir -p /data/software/mongodb-4.4.2/27012/logs/

mkdir -p /data/software/mongodb-4.4.2/27012/data/

mkdir -p /data/software/mongodb-4.4.2/27012/key/

mkdir -p /data/software/mongodb-4.4.2/27012/pid/

 

mkdir -p /data/software/mongodb-4.4.2/27013/logs/

mkdir -p /data/software/mongodb-4.4.2/27013/data/

mkdir -p /data/software/mongodb-4.4.2/27013/key/

mkdir -p /data/software/mongodb-4.4.2/27013/pid/ 

创建和修改配置文件： 

touch /data/software/mongodb-4.4.2/mongo-27011.conf

touch /data/software/mongodb-4.4.2/mongo-27012.conf

touch /data/software/mongodb-4.4.2/mongo-27013.conf 

mongo-27011.conf配置：

[root@localhost mongodb-4.4.2]# cat  mongo-27011.conf

systemLog:

   destination: file

   path: "/data/software/mongodb-4.4.2/27011/logs/mongodb.log"

   logAppend: true

storage:

   dbPath: "/data/software/mongodb-4.4.2/27011/data"

   journal:

      enabled: true

#   mmapv1:

#     smallFiles: true

   wiredTiger:

      engineConfig:

        configString: cache_size=500m

processManagement:

      fork: true

net:

   port: 27011

   bindIp: 0.0.0.0

setParameter:

   enableLocalhostAuthBypass: false

# 开启授权认证

security:

   authorization: disabled 

replication:

   oplogSizeMB: 100

   replSetName: sszh

   enableMajorityReadConcern: true

 

mongo-27012.conf配置： 

[root@localhost mongodb-4.4.2]# cat mongo-27012.conf

systemLog:

   destination: file

   path: "/data/software/mongodb-4.4.2/27012/logs/mongodb.log"

   logAppend: true

storage:

   dbPath: "/data/software/mongodb-4.4.2/27012/data"

   journal:

      enabled: true

#   mmapv1:

#     smallFiles: true

   wiredTiger:

      engineConfig:

        configString: cache_size=500m

processManagement:

      fork: true

net:

   port: 27012

   bindIp: 0.0.0.0

setParameter:

   enableLocalhostAuthBypass: false

# 开启授权认证

security:

   authorization: disabled

 

replication:

   oplogSizeMB: 100

   replSetName: sszh

   enableMajorityReadConcern: true 

 

mongo-27013.conf 配置： 

[root@localhost mongodb-4.4.2]# cat mongo-27013.conf

systemLog:

   destination: file

   path: "/data/software/mongodb-4.4.2/27013/logs/mongodb.log"

   logAppend: true

storage:

   dbPath: "/data/software/mongodb-4.4.2/27013/data"

   journal:

      enabled: true

#   mmapv1:

#     smallFiles: true

   wiredTiger:

      engineConfig:

        configString: cache_size=500m

processManagement:

      fork: true

net:

   port: 27013

   bindIp: 0.0.0.0

setParameter:

   enableLocalhostAuthBypass: false

# 开启授权认证

security:

   authorization: disabled 

replication:

   oplogSizeMB: 100

   replSetName: sszh

   enableMajorityReadConcern: true

 

创建和修改启动服务shell脚本： 

创建start-27011,start-27012,start-27013 shell启动脚本：

touch /data/software/mongodb-4.4.2/start-27011 

[root@localhost mongodb-4.4.2]# more start-27011

/data/software/mongodb-4.4.2/bin/mongod --config /data/software/mongodb-4.4.2/mongo-27011.conf 

touch /data/software/mongodb-4.4.2/start-27012 

[root@localhost mongodb-4.4.2]# more start-27012

/data/software/mongodb-4.4.2/bin/mongod --config /data/software/mongodb-4.4.2/mongo-27012.conf 

touch /data/software/mongodb-4.4.2/start-27013

[root@localhost mongodb-4.4.2]# more start-27013

/data/software/mongodb-4.4.2/bin/mongod --config /data/software/mongodb-4.4.2/mongo-27013.conf 

创建和修改停止服务shell脚本：

touch /data/software/mongodb-4.4.2/stop-27011

[root@localhost mongodb-4.4.2]# more stop-27011

ps -ef|grep /data/software/mongodb-4.4.2/mongo-27011.conf|grep -v grep|awk '{printf $2}'|xargs kill -9 

touch /data/software/mongodb-4.4.2/stop-27012

[root@localhost mongodb-4.4.2]# more stop-27012

ps -ef|grep /data/software/mongodb-4.4.2/mongo-27012.conf|grep -v grep|awk '{printf $2}'|xargs kill -9 

touch /data/software/mongodb-4.4.2/stop-27013

[root@localhost mongodb-4.4.2]# more stop-27013

ps -ef|grep /data/software/mongodb-4.4.2/mongo-27013.conf|grep -v grep|awk '{printf $2}'|xargs kill -9 

授权限：

给/data/software/mongodb-4.4.2文件夹和全部文件添加权限（生产环境需要酌情考虑是否开放外部权限）：

chmod -R 777 /data/software/mongodb-4.4.2/ 

启动mongodb:

[root@localhost mongodb-4.4.2]# pwd

/data/software/mongodb-4.4.2 

[root@localhost mongodb-4.4.2]# sh start-27011

about to fork child process, waiting until server is ready for connections.

forked process: 17307

child process started successfully, parent exiting

[root@localhost mongodb-4.4.2]# echo $?

0

[root@localhost mongodb-4.4.2]# sh start-27012

{"t":{"$date":"2021-01-04T05:39:15.648Z"},"s":"I",  "c":"STORAGE",  "id":22293,   "ctx":"main","msg":"Engine custom option","attr":{"option":"cache_size=500m"}}

about to fork child process, waiting until server is ready for connections.

forked process: 17354

child process started successfully, parent exiting

[root@localhost mongodb-4.4.2]# sh start-27013

about to fork child process, waiting until server is ready for connections.

forked process: 17402

child process started successfully, parent exiting 

查看mongodb是否启动成功：出现如下所示，说明启动成功。

[root@localhost mongodb-4.4.2]# ps -ef|grep mongo

root     17307     1  0 00:38 ?        00:00:01 /data/software/mongodb-4.4.2/bin/mongod --config /data/software/mongodb-4.4.2/mongo-27011.conf

root     17354     1  0 00:39 ?        00:00:01 /data/software/mongodb-4.4.2/bin/mongod --config /data/software/mongodb-4.4.2/mongo-27012.conf

root     17402     1  0 00:39 ?        00:00:01 /data/software/mongodb-4.4.2/bin/mongod --config /data/software/mongodb-4.4.2/mongo-27013.conf

root     17453 16723  0 00:42 pts/3    00:00:00 grep --color=auto mongo 

 

添加集群节点：

登录mongodb数据库：192.168.42.60:27011,具体登录命令如下：

[root@localhost bin]# pwd

/data/software/mongodb-4.4.2/bin 

[root@localhost bin]# ./mongo --port=27012

MongoDB shell version v4.4.2

connecting to: mongodb://127.0.0.1:27012/?compressors=disabled&gssapiServiceName=mongodb

Implicit session: session { "id" : UUID("00efb4f8-29e5-4595-b80e-abef7d619eb0") }

MongoDB server version: 4.4.2

Welcome to the MongoDB shell.

For interactive help, type "help".

For more comprehensive documentation, see

https://docs.mongodb.com/

Questions? Try the MongoDB Developer Community Forums

https://community.mongodb.com

---

The server generated these startup warnings when booting:

        2021-01-04T00:39:15.934-05:00: You are running this process as the root user, which is not recommended

        2021-01-04T00:39:15.934-05:00: /sys/kernel/mm/transparent_hugepage/enabled is 'always'. We suggest setting it to 'never'

        2021-01-04T00:39:15.934-05:00: /sys/kernel/mm/transparent_hugepage/defrag is 'always'. We suggest setting it to 'never'

        2021-01-04T00:39:15.934-05:00: Soft rlimits too low

        2021-01-04T00:39:15.934-05:00:         currentValue: 1024

        2021-01-04T00:39:15.934-05:00:         recommendedMinimum: 64000

---

---

        Enable MongoDB's free cloud-based monitoring service, which will then receive and display

        metrics about your deployment (disk utilization, CPU, operation statistics, etc).

 

        The monitoring data will be available on a MongoDB website with a unique URL accessible to you

        and anyone you share the URL with. MongoDB may use this information to make product

        improvements and to suggest MongoDB products and deployment options to you.

 

        To enable free monitoring, run the following command: db.enableFreeMonitoring()

        To permanently disable this reminder, run the following command: db.disableFreeMonitoring()

---

> 

 

登入后在 mongodb 命令行模式，执行 ’ > ’ 后面的命令：

> use admin

switched to db admin 

> config={_id:"sszh", members:[{_id:0,host:'192.168.42.60:27011'}, {_id:1,host:'192.168.42.60:27012'}, {_id:2,host:'192.168.42.60:27013'}]};

{

"_id" : "sszh",

"members" : [

{

"_id" : 0,

"host" : "192.168.42.60:27011"

},

{

"_id" : 1,

"host" : "192.168.42.60:27012"

},

{

"_id" : 2,

"host" : "192.168.42.60:27013"

}

]

} 

 

> rs.initiate(config)

{

"ok" : 1,

"$clusterTime" : {

"clusterTime" : Timestamp(1609739977, 1),

"signature" : {

"hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),

"keyId" : NumberLong(0)

}

},

"operationTime" : Timestamp(1609739977, 1)

}

sszh:SECONDARY>

sszh:PRIMARY> rs.status()

{

"set" : "sszh",

"date" : ISODate("2021-01-04T06:01:49.682Z"),

"myState" : 1,

"term" : NumberLong(1),

"syncSourceHost" : "",

"syncSourceId" : -1,

"heartbeatIntervalMillis" : NumberLong(2000),

"majorityVoteCount" : 2,

"writeMajorityCount" : 2,

"votingMembersCount" : 3,

"writableVotingMembersCount" : 3,

"optimes" : {

"lastCommittedOpTime" : {

"ts" : Timestamp(1609740108, 1),

"t" : NumberLong(1)

},

"lastCommittedWallTime" : ISODate("2021-01-04T06:01:48.093Z"),

"readConcernMajorityOpTime" : {

"ts" : Timestamp(1609740108, 1),

"t" : NumberLong(1)

},

"readConcernMajorityWallTime" : ISODate("2021-01-04T06:01:48.093Z"),

"appliedOpTime" : {

"ts" : Timestamp(1609740108, 1),

"t" : NumberLong(1)

},

"durableOpTime" : {

"ts" : Timestamp(1609740108, 1),

"t" : NumberLong(1)

},

"lastAppliedWallTime" : ISODate("2021-01-04T06:01:48.093Z"),

"lastDurableWallTime" : ISODate("2021-01-04T06:01:48.093Z")

},

"lastStableRecoveryTimestamp" : Timestamp(1609740108, 1),

"electionCandidateMetrics" : {

"lastElectionReason" : "electionTimeout",

"lastElectionDate" : ISODate("2021-01-04T05:59:48.028Z"),

"electionTerm" : NumberLong(1),

"lastCommittedOpTimeAtElection" : {

"ts" : Timestamp(0, 0),

"t" : NumberLong(-1)

},

"lastSeenOpTimeAtElection" : {

"ts" : Timestamp(1609739977, 1),

"t" : NumberLong(-1)

},

"numVotesNeeded" : 2,

"priorityAtElection" : 1,

"electionTimeoutMillis" : NumberLong(10000),

"numCatchUpOps" : NumberLong(0),

"newTermStartDate" : ISODate("2021-01-04T05:59:48.053Z"),

"wMajorityWriteAvailabilityDate" : ISODate("2021-01-04T05:59:48.994Z")

},

"members" : [

{

"_id" : 0,

"name" : "192.168.42.60:27011",

"health" : 1,

"state" : 2,

"stateStr" : "SECONDARY",

"uptime" : 132,

"optime" : {

"ts" : Timestamp(1609740108, 1),

"t" : NumberLong(1)

},

"optimeDurable" : {

"ts" : Timestamp(1609740108, 1),

"t" : NumberLong(1)

},

"optimeDate" : ISODate("2021-01-04T06:01:48Z"),

"optimeDurableDate" : ISODate("2021-01-04T06:01:48Z"),

"lastHeartbeat" : ISODate("2021-01-04T06:01:48.159Z"),

"lastHeartbeatRecv" : ISODate("2021-01-04T06:01:49.126Z"),

"pingMs" : NumberLong(0),

"lastHeartbeatMessage" : "",

"syncSourceHost" : "192.168.42.60:27012",

"syncSourceId" : 1,

"infoMessage" : "",

"configVersion" : 1,

"configTerm" : 1

},

{

"_id" : 1,

"name" : "192.168.42.60:27012",

"health" : 1,

"state" : 1,

"stateStr" : "PRIMARY",

"uptime" : 1354,

"optime" : {

"ts" : Timestamp(1609740108, 1),

"t" : NumberLong(1)

},

"optimeDate" : ISODate("2021-01-04T06:01:48Z"),

"syncSourceHost" : "",

"syncSourceId" : -1,

"infoMessage" : "",

"electionTime" : Timestamp(1609739988, 1),

"electionDate" : ISODate("2021-01-04T05:59:48Z"),

"configVersion" : 1,

"configTerm" : 1,

"self" : true,

"lastHeartbeatMessage" : ""

},

{

"_id" : 2,

"name" : "192.168.42.60:27013",

"health" : 1,

"state" : 2,

"stateStr" : "SECONDARY",

"uptime" : 132,

"optime" : {

"ts" : Timestamp(1609740108, 1),

"t" : NumberLong(1)

},

"optimeDurable" : {

"ts" : Timestamp(1609740108, 1),

"t" : NumberLong(1)

},

"optimeDate" : ISODate("2021-01-04T06:01:48Z"),

"optimeDurableDate" : ISODate("2021-01-04T06:01:48Z"),

"lastHeartbeat" : ISODate("2021-01-04T06:01:48.159Z"),

"lastHeartbeatRecv" : ISODate("2021-01-04T06:01:49.126Z"),

"pingMs" : NumberLong(0),

"lastHeartbeatMessage" : "",

"syncSourceHost" : "192.168.42.60:27012",

"syncSourceId" : 1,

"infoMessage" : "",

"configVersion" : 1,

"configTerm" : 1

}

],

"ok" : 1,

"$clusterTime" : {

"clusterTime" : Timestamp(1609740108, 1),

"signature" : {

"hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),

"keyId" : NumberLong(0)

}

},

"operationTime" : Timestamp(1609740108, 1)

}

sszh:PRIMARY> 

备注：

　　use admin:使用admin数据库

　　config={}:临时参数

　　rs.initiate(config):使用config临时参数初始化副本集

　　rs.status:查看集群状态

　　members[0].stateStr:PRIMARY 表示主节点，SECONDARY表示从节点

　　PRIMARY主节点：可读可写

　　SECONDARY从节点：可读不可写