Shulou(Shulou.com)06/01 Report--

Description:

There are two Mongodb database servers that have been installed, and now you need to set one as the master library and the other as the slave library to achieve master-slave synchronization.

Operating system: CentOS 7.064 bit

MongoDB database version: mongodb-linux-x86_64-2.6.5

Preparation: MongoDB database installation

Specific operations:

1. Configure the main MongoDB library

The following operations are performed on the MongoDB main library server

1. Cd / usr/local/mongodb/ # enter the MongoDB installation directory

Edit vi / usr/local/mongodb/mongodb.conf # to add the following code to the last line of the original configuration file

Master=true # is set as the main library

Log size setting for oplogSize=2048 # synchronous replication (in MB)

: wq! # Save exit

After being added, it is shown in the following figure:

System operation and maintenance www.osyunwei.com warm reminder: the original content of qihang01 all rights reserved, reprint please indicate the source and the original text chain

2. Restart the MongoDB database

Service mongod stop # stop MongoDB

Service mongod start # launch MongoDB

Configure MongoDB slave library

The following operations are performed on the MongoDB slave server

1. Cd / usr/local/mongodb/ # enter the MongoDB installation directory

Edit vi / usr/local/mongodb/mongodb.conf # to add the following code to the last line of the original configuration file

Slave=true # is set to slave library

Source=192.168.21.100:27017 # sets the IP address and port of the MongoDB master library to be synchronized. Format: ip: Port

Slavedelay=10 # sets the delay time for synchronizing the master library from the slave library (in seconds)

Autoresync=true # resynchronization automatically when master and slave data are inconsistent

: wq! # Save exit

After being added, it is shown in the following figure:

System operation and maintenance www.osyunwei.com warm reminder: the original content of qihang01 all rights reserved, reprint please indicate the source and the original text chain

2. Restart the MongoDB database

Service mongod stop # stop MongoDB

Service mongod start # launch MongoDB

Third, test MongoDB master-slave synchronization

1. Operate in the main library

Mongo # enter the MongoDB console

Use test # create database test Note: if you leave without doing anything, the library will be deleted by the system

Db.createCollection ("test_table") # create table test_table

Show collections # View

Db.test_table.insert ({uid:1,name: "system operation and maintenance", url: "official website of http://www.osyunwi.com",content:" system operation and maintenance"}) # insert data into table osyunweidb_table

Db.osyunweidb.find ()

Show dbs # as shown below, you can see that the test database has been created

Exit # exit

2. Operating from the library

Mongo # enter the MongoDB console

Show dbs # as shown in the following figure, you can see that there is already a test database in the slave library, and the master-slave synchronization has been run successfully

Exit # exit

At this point, the master-slave synchronization configuration of Mongodb database under Linux is complete.

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