Replica the MongoDB cluster construction of set replica set mode

1. Environment:

Open four MongoDB instances on a single server to implement the cluster setup of MongoDB's replica set replica set mode

2. Configuration file:

Master Master Instance configuration file:

[Email protected] ~]# CAT/USR/LOCAL/MONGODB/MONGOD.CNF

Logpath=/data/mongodb-master/logs/mongodb.log

Logappend = True

#fork and run in background

Fork = True

Port = 27017

Dbpath=/data/mongodb-master/data

#location of Pidfile

Pidfilepath=/data/mongodb-master/mongod.pid

Auth = True

KeyFile =/tmp/mongo-keyfile

Nohttpinterface=true

Replset=shard1

Slave1 instance configuration file:

[Email protected] ~]# CAT/USR/LOCAL/MONGODB/MONGOD1.CNF

Logpath=/data/mongodb-slave/logs/mongodb.log

Logappend = True

#fork and run in background

Fork = True

Port = 27018

Dbpath=/data/mongodb-slave/data

#location of Pidfile

Pidfilepath=/data/mongodb-slave/mongod.pid

Auth = True

KeyFile =/tmp/mongo-keyfile

Nohttpinterface=true

Replset=shard1

Slave2 instance configuration file:

[Email protected] ~]# CAT/USR/LOCAL/MONGODB/MONGOD2.CNF

Logpath=/data/mongodb-slave1/logs/mongodb.log

Logappend = True

#fork and run in background

Fork = True

Port = 27019

Dbpath=/data/mongodb-slave1/data

#location of Pidfile

Pidfilepath=/data/mongodb-slave1/mongod.pid

Auth = True

KeyFile =/tmp/mongo-keyfile

Nohttpinterface=true

Replset=shard1

Arbiter blanking Node Instance deployment:

[Email protected] ~]# CAT/USR/LOCAL/MONGODB/ARBITER.CNF

Logpath=/data/mongodb-arbiter/logs/mongodb.log

Logappend = True

#fork and run in background

Fork = True

Port = 27020

Dbpath=/data/mongodb-arbiter/data

#location of Pidfile

Pidfilepath=/data/mongodb-arbiter/mongod.pid

KeyFile =/tmp/mongo-keyfile

Nohttpinterface=true

Replset=shard1

3. Single-Instance MongoDB startup script:

[Email protected] data]# Cat/etc/init.d/mongod

#!/bin/sh

# # chkconfig:2345 66 40

Source/etc/profile

Config=/usr/local/mongodb/mongod.cnf

Program=/usr/local/mongodb/bin/mongod

Mongopid= ' Ps-ef | grep ' Mongod--config ' | Grep-v grep | awk ' {print $} '

Test-x $PROGRAM | | Exit 0

Case "$" in

Start

echo "Starting MongoDB Server ..."

$PROGRAM--config $CONFIG &

;;

Stop

echo "Stopping MongoDB Server ..."

if [!-Z "$MONGOPID"]; Then

Kill-15 $MONGOPID

Fi

;;

Status

If [-Z "$MONGOPID"]; Then

echo "MongoDB is not running!"

Else

echo "MongoDB is running! ("$MONGOPID") "

Fi

;;

Restart

echo "shutting down MongoDB Server ..."

if [!-Z "$MONGOPID"]; Then

Kill-15 $MONGOPID

Fi

echo "Starting MongoDB ..."

$PROGRAM--config $CONFIG &

;;

*)

Log_success_msg "Usage:/etc/init.d/mongod {Start|stop|status|restart}"

Exit 1

Esac

Exit 0

4. Start the MongoDB instance:

[Email protected] data]# ps-ef|grep MONGO

Root 7226 1 0 13:12? 00:00:41/usr/local/mongodb/bin/mongod--config/usr/local/mongodb/arbiter.cnf

Root 11262 1 0 13:54? 00:00:29/usr/local/mongodb/bin/mongod--config/usr/local/mongodb/mongod.cnf

Root 13097 1 0 14:22? 00:00:19/usr/local/mongodb/bin/mongod--config/usr/local/mongodb/mongod1.cnf

Root 13214 1 0 14:22? 00:00:19/usr/local/mongodb/bin/mongod--config/usr/local/mongodb/mongod2.cnf

5. Configure master, Standby, quorum node:

You can connect MongoDB via client, or you can choose a connection to mongodb directly from three nodes.

Login Mongodb-master Master instance to configure:

[Email protected] ~]# MONGO 127.0.0.1:27017

MongoDB Shell version:3.0.5

Connecting To:127.0.0.1:27017/test

shard1:primary> use admin;

Switched to DB admin

> cfg={_id: "Shard1", members:[{_id:0,host: ' 127.0.0.1:27017 ', priority:3}, {_id:1,host: ' 127.0.0.1:27018 ', Priority:2},

... {_id:2,host: ' 127.0.0.1:27019 ', priority:1}, {_id:3,host: ' 127.0.0.1:27020 ', Arbiteronly:true}]};

{

"_id": "Shard1",

"Members": [

{

"_id": 0,

"Host": "127.0.0.1:27017",

"Priority": 3

},

{

"_id": 1,

"Host": "127.0.0.1:27018",

"Priority": 2

},

{

"_id": 2,

"Host": "127.0.0.1:27019",

"Priority": 1

},

{

"_id": 3,

"Host": "127.0.0.1:27020",

"Arbiteronly": True

}

]

}

> rs.initiate (CFG); ( initialize configuration )

{"OK": 1}

Shard1:primary> rs.conf (); ( view configuration information )

{

"_id": "Shard1",

"Version": 1,

"Members": [

{

"_id": 0,

"Host": "127.0.0.1:27017",

"Arbiteronly": false,

"Buildindexes": true,

"Hidden": false,

"Priority": 3,

"Tags": {

},

"Slavedelay": 0,

"Votes": 1

},

{

"_id": 1,

"Host": "127.0.0.1:27018",

"Arbiteronly": false,

"Buildindexes": true,

"Hidden": false,

"Priority": 2,

"Tags": {

},

"Slavedelay": 0,

"Votes": 1

},

{

"_id": 2,

"Host": "127.0.0.1:27019",

"Arbiteronly": false,

"Buildindexes": true,

"Hidden": false,

"Priority": 1,

"Tags": {

},

"Slavedelay": 0,

"Votes": 1

},

{

"_id": 3,

"Host": "127.0.0.1:27020",

"Arbiteronly": true,

"Buildindexes": true,

"Hidden": false,

"Priority": 1,

"Tags": {

},

"Slavedelay": 0,

"Votes": 1

}

],

"Settings": {

"Chainingallowed": true,

"Heartbeattimeoutsecs": 10,

"Getlasterrormodes": {

},

"Getlasterrordefaults": {

"W": 1,

"Wtimeout": 0

}

}

}

Shard1:other> rs.status () ( view replica set )

{

"Set": "Shard1",

"Date": Isodate ("2017-09-14t05:23:16.893z"),

"MyState": 1,

"Members": [

{

"_id": 0,

"Name": "127.0.0.1:27017",

"Health": 1,

"State": 1,

"Statestr": "PRIMARY",

"Uptime": 1117,

"Optime": Timestamp (1505366494, 1),

"Optimedate": Isodate ("2017-09-14t05:21:34z"),

"Electiontime": Timestamp (1505366495, 1),

"Electiondate": Isodate ("2017-09-14t05:21:35z"),

"ConfigVersion": 1,

"Self": true

},

{

"_id": 1,

"Name": "127.0.0.1:27018",

"Health": 1,

"State": 2,

"Statestr": "Secondary",

"Uptime": 102,

"Optime": Timestamp (1505366494, 1),

"Optimedate": Isodate ("2017-09-14t05:21:34z"),

"Lastheartbeat": Isodate ("2017-09-14t05:23:16.113z"),

"Lastheartbeatrecv": Isodate ("2017-09-14t05:23:16.663z"),

"Pingms": 0,

"ConfigVersion": 1

},

{

"_id": 2,

"Name": "127.0.0.1:27019",

"Health": 1,

"State": 2,

"Statestr": "Secondary",

"Uptime": 102,

"Optime": Timestamp (1505366494, 1),

"Optimedate": Isodate ("2017-09-14t05:21:34z"),

"Lastheartbeat": Isodate ("2017-09-14t05:23:16.127z"),

"Lastheartbeatrecv": Isodate ("2017-09-14t05:23:16.668z"),

"Pingms": 0,

"ConfigVersion": 1

},

{

"_id": 3,

"Name": "127.0.0.1:27020",

"Health": 1,

"State": 7,

"Statestr": "Arbiter",

"Uptime": 102,

"Lastheartbeat": Isodate ("2017-09-14t05:23:16.055z"),

"Lastheartbeatrecv": Isodate ("2017-09-14t05:23:16.674z"),

"Pingms": 1,

"ConfigVersion": 1

}

],

"OK": 1

}

Shard1:primary>

To configure success here:

6. Test verification:

Reference Document: http://blog.csdn.net/zhang_yanan/article/details/25972693 for test validation

Create a user and database on master to test to verify that the cluster is successful

Db.createuser (

{

User: "Root",

PWD: "[email protected]",

Roles: [{role: ' Root ', db: ' admin '}]

}

)

Use admin

Db.createuser (

... {

... User: "DBA3",

... pwd: "[email protected]",

... roles: [{role: ' ReadWrite ', db: ' dbtest001 '}]

...  }

...  )

You can also install the MongoDB client software to verify the success of the cluster build

7. Deploy the reference documentation:

http://blog.csdn.net/luonanqin/article/details/8497860;

http://suifu.blog.51cto.com/9167728/1853478

http://blog.csdn.net/zhang_yanan/article/details/25972693

Several scenarios for MongoDB high Availability cluster configuration reference: https://yq.aliyun.com/articles/61516

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Replica the MongoDB cluster construction of set replica set mode