How to install MongoDB4.0 on CentOS and RHEL

MongoDB is an extremely flexible index support and rich query database. It is a NoSQL database that provides a grid for large media storage. MongoDB has released a new stable version 4.0 with many major new features. This article will introduce how to install MongoDB 4.0 on CentOS 7/6 and Red Hat 7/6 systems.

Step 1: Add MongoDB yum repository

According to the required MongoDB version and system architecture, configure the yum repository Add the following content to the file mongodb.repo. For this article, we are using a MongoDB 4.0 repository.

CentOS and RedHat systems only

# vi /etc/yum.repos.d/mongodb.repo

[MongoDB]
name=MongoDB Repository
baseurl=http://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/4.0/x86_64/
gpgcheck=0
enabled=1

Fedora users can install it from its official yum repository.

Step 2: Install MongoDB Server

Let us use the yum package manager to install the mongodb-org package, which will automatically install all its dependencies. To install any specific version of MongoDB, specify the package name, such as mongodb-org-4.0.0. The following command will install the latest stable version.

# yum install mongodb-org

Step 3: Start the MongoDB service

The mongodb org server package provides the mongodb init script, use this script to start the service.

# /etc/init.d/mongod restart

Configure MongoDB to start automatically when the system starts.

# chkconfig mongod on

Step 4: Check MongoDB version

Check the installed MongoDB version using the following command

[root@tecadmin ~]#  mongod --version

db version v4.0.0
git version: 3b07af3d4f471ae89e8186d33bbb1d5259597d51
OpenSSL version: OpenSSL 1.0.0-fips 29 Mar 2010
allocator: tcmalloc
modules: none
build environment:
    distmod: amazon
    distarch: x86_64
    target_arch: x86_64

Connect to MongoDB using the command line and execute some Test the command to check if it works properly.

[root@tecadmin ~]#  mongo
> use mydb;
> db.test.save( { a: 1 } )
> db.test.find()
  { "_id" : ObjectId("54fc2a4c71b56443ced99ba2"), "a" : 1 }

The MongoDB server has been successfully installed on the system.

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