MongoDB installation and master-slave configuration

One, MongoDB installation

1. Download Mongodblinux version https://www.mongodb.com/download-center#community

2. Unzip

Tar xvf mongodb-linux-x86_64-2.0.7.tgz

Mkdir/usr/local/mongodb

MV mongodb-linux-x86_64-2.0.7/*/usr/local/mongodb

3. Create a database file directory

Mkdir-p/mongo/db

Create a MongoDB log file

Mkdir/var/log/mongodb

Touch/var/log/mongodb/mongodb.log

4. Create a soft connection to the MONGO command

The script file in the MONGO Bin directory can be used directly

Ln-s/usr/local/mongodb/bin/*/usr/sbin

5. Configure Startup Parameters

Mkdir/usr/local/mongodb/conf

Cd/usr/local/mongodb/conf

VI mongod.conf

port=27017 #端口号

Fork=true #以守护进程的方式运行, creating a server process

Logpath=/var/log/mongodb/mongodb.log #日志输出文件路径

Logappend=true #日志输出方式

dbpath=/mongo/db #数据库路径

maxconns=600 #数据库的最大连接数

Start: Mongod-f/usr/local/mongodb/conf/mongod.conf

6. Verification

Whether Port 27017 is open

Netstat-nultp

MONGO command into MONGO Shell

7, set the Master and slave:

Assume:

master:10.20.115.185

slave:10.20.115.44

A. Apply the above installation process to MongoDB two hosts, the configuration file changes slightly

On Mongodb-master, the configuration file is incremented

Master=true

oplogsize=2048 #类似于mysql的日志滚动, Unit m

B. On Mongodb-slave, the configuration file is incremented:

Slave=true

source=10.48.100.1:27017 #指定主mongodb Server

slavedelay=10 #延迟复制, unit of seconds

Autoresync=true #当发现从服务器的数据不是最新时, request synchronization of data to the primary server

Third, test master-Slave usability

Start the Mongodb:mongod-f/usr/local/mongodb/conf/mongod.conf on both hosts

1. Below we create the database in our Lord and insert the collection document to see if it is synchronized

On the primary server:

# MONGO

MongoDB Shell version:2.0.7

Connecting To:test

> Show DBS

Local4.201171875gb

> Use Xin

Switched to DB Xin

> Db.test.save ({title: "Just Test"})

> Db.test.find ()

{"_id": ObjectId ("502D3643C5664CA66103A7CF"), "title": "Just Test"}

> Show DBS

Local4.201171875gb

Xin0.203125gb

>

Note: Xin is the database name, test is the collection name, {title: "Just Test"} is a document

MongoDB using use to create a database of course, you can switch the database, and MySQL is a big difference.

2. Execute Rs.slaveok () on the slave node;

3. We enter the MongoDB shell from the server and confirm

# MONGO

MongoDB Shell version:2.0.7

Connecting To:test

> Show DBS

Local0.203125gb

Xin0.203125gb

>

> Use Xin

Switched to DB Xin

> Db.test.find ()

{"_id": ObjectId ("502D3643C5664CA66103A7CF"), "title": "Just Test"}

MongoDB installation and master-slave configuration