MongoDB Master-Slave environment construction

MongoDB is a product between a relational database and a non-relational database, and is the most versatile and most like relational database in a non-relational database. The data structure he supports is very loose and is a JSON-like Bson format, so you can store more complex data types. MONGO's biggest feature is that the query language he supports is very powerful, and its syntax is a bit like an object-oriented query language that almost implements most of the functionality of a relational database single-table query, and also supports indexing of data.

It is characterized by high performance, easy to deploy, easy to use, and easy to store data. The main features are:

* For collection storage, easy to store object type data.

* Free mode.

* Support Dynamic Query.

* Full index support, including internal objects.

* Support Query.

* Supports replication and recovery.

* Use efficient binary data storage, including large objects (such as video, etc.).

* Automatically handles fragmentation to support scalability at the cloud level.

* Support multiple languages such as ruby,python,java,c++,php,c#.

* File storage format is Bson (an extension of JSON).

* Can be accessed via the Internet. ----------------the above content from the good search encyclopedia

First, download keepalived and MongoDB source package

http://yunpan.cn/cLnMGSt7v2X4s Access Password 956a

Second, installation keepalived

[Email protected] ~]yum-y install gccopenssl-devel popt popt-devel LIBNL libnl-devel Kernel-dev El #所需依赖包

[Email protected]~]# tar-zxvf keepalived-1.2.7.tar.gz

[[Email protected]~]# CD keepalived-1.2.7.tar.gz

[Email protected]]#./configure #安装三部曲

[[Email protected]]# make

[[Email protected]]# make install

Iii. Copy configuration files and startup scripts

[[Email protected]~]# cp/usr/local/etc/rc.d/init.d/keepalived/etc/rc.d/init.d/

[[Email protected]~]# cp/usr/local/etc/sysconfig/keepalived/etc/sysconfig

[[Email protected]~]# mkdir/etc/keepalived

[[Email protected]~]# cp/usr/local/etc/keepalived/keepalived.conf/etc/keepalived/

[[Email protected]~]# cp/usr/local/sbin/keepalived/usr/sbin/

Iv. Adding boot-up

[[Email protected]~] #chkconfig--add keepalived # Add service

[[email protected]~] #chkconfig keepalived on # boot up

v. configuration files

[Email protected]~] #cat/etc/keepalived/keepalived.conf

! Configuration File for Keepalived

vrrp_instancemg_1 {

State MASTER #mongodb2为BACKUP

Interfaceeth 0

VIRTUAL_ROUTER_ID 55

Priority #优先级, Backup is 90

Advert_int 1

#nopreempt #不抢占资源

Authentication {

Auth_type PASS

Auth_pass 1111

}

virtual_ipaddress {

192.168.0.10 #虚拟IP

}

}

vi. [[Email protected] ~]# service keepalived start

Starting keepalived: [OK]

Seven, above configuration, in addition to the configuration file from the server in the small difference, the other content is exactly the same!

Eight, the command IP A can view the virtual IP, successful display virtual IP.

Ix. installation of MongoDB

[Email protected] ~]# tar-zxvfmongodb-linux-x86_64-2.4.9.tgz-c/usr/local/

[Email protected] local]# MV Mongodb-linux-x86_64-2.4.9/mongodb

[Email protected] local]# CD mongodb/

[[email protected] mongodb]# mkdir DB

[Email protected] mongodb]# mkdir logs

[[Email protected] mongodb]# CD bin

[email protected] bin]# cat mongodb.conf

dbpath=/usr/local/mongodb/db #数据库目录

Logpath=/usr/local/mongodb/logs/mongodb.log #日志

port=27017 #端口

Fork=true

Nohttpinterface=true

Master=true #主服务器

Auth=true #开启用户验证

X. From the server configuration file

[email protected] bin]# cat mongodb.conf

dbpath=/usr/local/mongodb/db

Logpath=/usr/local/mongodb/logs/mongodb.log

port=27017

Fork=true

Nohttpinterface=true

Slave=true #从服务器

source=192.168.0.100:27017 #从主服务器复制

Autoresync=true #自动同步

Auth=true

Xi. Start MongoDB (two sets are started)---command path can be added in BASHRC, if not, please Baidu, Baidu, please find your boss.

[Email protected] bin]/usr/local/mongodb/bin/mongod-f/usr/local/mongodb/bin/mongodb.conf

12, error message: When viewing from the server MongoDB log display the following information, if you are in the configuration process without authentication users, master-Slave construction success, please ignore the error, if it is other error, please Baidu.

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13, after several twists and turns, to find the reasons for the two user authentication.

[Email protected] Bin]/usr/local/mongodb/bin/mongo #进入数据库

>use Local

>db.adduser (' reql ', ' reql ')

After the user authentication, from the server connected to the primary server, display OK, but after OK display errmsg:unauthorized, this is not authorized

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14, after analysis, the general user authentication permission is small, so then the Administrator account authentication. (authentication only on the primary server) Note: Auth=true in the configuration file, please comment out and restart MongoDB

[Email protected] Bin]/usr/local/mongodb/bin/mongo #进入数据库

>use Admin

>db.adduser (' Tank ', ' test ')

>db.auth (' Tank ', ' test ') #数据库认证, must do

This article from the "System operation and maintenance of the road" blog, declined reprint!

MongoDB Master-Slave environment construction