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This article shows you the introduction and installation of mongodb, which is concise and easy to understand, which will definitely brighten your eyes. I hope you can get something through the detailed introduction of this article.

I. introduction of mongodb

1. What is MongoDB?

MongoDB is written by C++ language. It is an open source database system based on distributed file storage and belongs to NoSQL.

In the case of high load, more nodes can be added to ensure server performance.

MongoDB aims to provide scalable, high-performance data storage solutions for WEB applications

MongoDB stores the data as a document, and the data structure consists of key-value (key= > value) pairs. MongoDB documents are similar to JSON objects. Field values can contain other documents, arrays, and document arrays.

two。 Compared with relational database

3.MogoDB data structure

II. Installation of mongodb

1. Set up a yum source (this is also an officially recommended method)

This time I installed version 3.0, and the official source only supports 64-bit systems.

Vim / etc/yum.repos.d/mongodb-org-3.0.repo

#

[mongodb-org-3.0]

Lname=MongoDBRepository

Baseurl= http://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/3.0/x86_64/

Gpgcheck=0

Enabled=1

#

two。 Install and configure MongoDB

It is easy to install yum install-y mongodb-org

Edit the configuration file vim/etc/mongod.conf and modify it as follows:

Fork: true

PidFilePath:/var/run/mongodb/mongod.pid

Delete the comments at the beginning of the # after these two lines, otherwise there will be a problem when you restart

To bind multiple ip, write multiple ip after bind_ip, separated by commas, and listen for all ip left blank.

3. Start MongoDB

Echo never > / sys/kernel/mm/transparent_hugepage/enabled

Echo never > / sys/kernel/mm/transparent_hugepage/defrag

Vim / etc/security/limits.conf adds the following:

Mongod soft nofile 64000

Mongod hard nofile 64000

Mongod soft nproc 32000

Mongod hard nproc 32000

Launch: service mongod start

The startup process will be slow, it is writing data / var/lib/mongo

The above is the introduction and installation method of mongodb. Have you learned the knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.

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