MongoDB replica setup (one master and two spare)

MongoDB replica setup (one master and two spare)

Master: 192.168.0.237

Prepared 1:192.168.0.122

Prepared 2:192.168.0.123

Three machines are also operated

Tar zxf mongodb-linux-i686-1.8.1.tgz

MV Mongodb-linux-i686-1.8.1/usr/local/mongodb

cd/usr/local/mongodb/

mkdir etc

mkdir logs

CD logs/

Touch Mongodb.log

Cd..

CD etc/

VI mongodb.cnf

Join

dbpath=/data/cc

mkdir/data/cc

/usr/local/mongodb/bin/mongod--dbpath=/data/cc--logpath=/usr/local/mongodb/logs/mongodb.log-f/usr/local/ MONGODB/ETC/MONGODB.CNF--replset Repset--fork

Install all and start successfully

Any machine on three machines landed on MongoDB

/usr/local/mongodb/bin/mongo

#使用admin数据库

Use admin

#定义副本集配置变量, here's _id: "Repset" and the above command parameter "–replset Repset" to remain the same.

Config = {_id: "Repset", members:[

... {_id:0,host: "192.168.0.122:27017"},

... {_id:1,host: "192.168.0.123:27017"},

... {_id:2,host: "192.168.0.237:27017"}]

... }

#输出

{

"_id": "Repset",

"Members": [

{

"_id": 0,

"Host": "192.168.0.122:27017"

},

{

"_id": 1,

"Host": "192.168.0.123:27017"

},

{

"_id": 2,

"Host": "192.168.0.237:27017"

}

]

}

#初始化副本集配置

Rs.initiate (config);

#输出成功

1

{

"Info": "Config now saved locally. Should come online in about a minute. ",

"OK": 1

}

#查看集群节点的状态

Rs.status ();

#输出

{

"Set": "Repset",

"Date": Isodate ("2014-05-05t10:51:50z"),

"MyState": 2,

"Members": [

{

"_id": 0,

"Name": "192.168.0.122:27017",

"Health": 1,

"State": 2,

"Statestr": "Secondary",

"Optime": {

"T": 1399286403000,

"I": 1

},

"Optimedate": Isodate ("2014-05-05t10:40:03z"),

"Self": true

},

{

"_id": 1,

"Name": "192.168.0.123:27017",

"Health": 1,

"State": 2,

"Statestr": "Secondary",

"Uptime": 920,

"Optime": {

"T": 1399286403000,

"I": 1

},

"Optimedate": Isodate ("2014-05-05t10:40:03z"),

"Lastheartbeat": Isodate ("2014-05-05t10:51:48z")

},

{

"_id": 2,

"Name": "192.168.0.237:27017",

"Health": 1,

"State": 1,

"Statestr": "PRIMARY",

"Uptime": 920,

"Optime": {

"T": 1399286403000,

"I": 1

},

"Optimedate": Isodate ("2014-05-05t10:40:03z"),

"Lastheartbeat": Isodate ("2014-05-05t10:51:48z")

}

],

"OK": 1

}

The entire replica set has been built successfully.

6. Test copy Set data copy function

#在主节点192.168.0.237 connected to the terminal:

MONGO 127.0.0.1

#建立test database.

Use test;

Insert data toward the TestDB table.

> Db.testdb.insert ({"Test1": "Testval1"})

#在副本节点 192.168.0.122, 192.168.0.123 Connect to MongoDB to see if the data is copied over.

/usr/local/mongodb/bin/mongo 192.168.0.122:27017

#使用test database.

repset:secondary> use test;

Repset:secondary> Show tables;

#输出

Sun Dec 21:50:48.590 Error: {"$err": "Not Master and Slaveok=false", "Code": 13435} at src/mongo/shell/query.js:128

This is normal, because secondary is not allowed to read and write, if not to resolve, the method is as follows:

Repset:secondary> Rs.slaveok ();

Repset:secondary> Db.getmongo (). Setslaveok ();

You can see that the data has been copied to the replica set.

Repset:secondary> Db.testdb.find ();

#输出

{"_id": ObjectId ("52c028460c7505626a93944f"), "test1": "Testval1"}

This method fails by manually specifying the MongoDB IP

This article is from the "Lonely" blog, make sure to keep this source http://304076020.blog.51cto.com/7503470/1408248