How to Install MongoDB on CentOS?

MongoDB is a flexible, powerful, and super-fast database management system. Unlike those old-school databases with strict rules, MongoDB lets you store your data in flexible documents, similar to how you organize things in JSON. This means you can easily add new information or change things up without much hassle.

In this article, we will install MongoDB on CentOS using two methods.

How to Install MongoDB on CentOS?

To install MongoDB on CentOS, choose between RPM Package or Official Repository methods. Follow step-by-step instructions, including downloading packages, installing dependencies, configuring repositories, and starting services. Let’s see how to do this with proper demonstration.

Also Learn MongoDB with this Tutorial

Method 1: Installing MongoDB Using RPM Package

Step 1: Download RPM package from MongoDB website.

We will need to download these 6 mongoDB package from official mongoDB RPM repository to get complete featurs of mongodb. We will use wget command for that.

Package 1: mongodb-org

wget https://repo.mongodb.org/yum/redhat/9/mongodb-org/7.0/x86_64/RPMS/mongodb-org-7.0.6-1.el9.x86_64.rpm

downloading mongodb-org.rpm package

Package 2: mongodb-mongosh

wget https://repo.mongodb.org/yum/redhat/9Server/mongodb-org/7.0/x86_64/RPMS/mongodb-mongosh-2.1.5.x86_64.rpm

downloading mongodb-mongosh.rpm package

Package 3: mongodb-org-mongos

wget https://repo.mongodb.org/yum/redhat/9Server/mongodb-org/7.0/x86_64/RPMS/mongodb-org-mongos-7.0.6-1.el9.x86_64.rpm

downloading mongodb-org-mongos.rpm package

Package 4: mongodb-org-tools

wget https://repo.mongodb.org/yum/redhat/9Server/mongodb-org/7.0/x86_64/RPMS/mongodb-org-tools-7.0.6-1.el9.x86_64.rpm

downloading mongodb-org-tools.rpm package

Package 5: mongodb-org-database

wget https://repo.mongodb.org/yum/redhat/9Server/mongodb-org/7.0/x86_64/RPMS/mongodb-org-database-7.0.6-1.el9.x86_64.rpm

downloading mongodb-org-database.rpm package

Package 6: mongodb-org-server

wget https://repo.mongodb.org/yum/redhat/9Server/mongodb-org/7.0/x86_64/RPMS/mongodb-org-server-7.0.5-1.el9.x86_64.rpm

downloading mongodb-org-server.rpm package

Step 2: Install MongoDB

Installing dependencies:

cyrus-sasl and openssl are the dependencies that are required by some packages, we will install those dependencies first before installing .rpm packages using yum package manager.

sudo yum install cyrus-sasl openssl -y

resolving dependencies

We will use rpm -i command to install the downloaded rpm package.

Syntax: sudo rpm -i <package-name>

sudo rpm -i mongodb-*

completed installation

Installation is completed. Now you can move on to starting services section.

Method 2: Installing MongoDB Using Official Repository

Step 1: Configure package management system

Create a /etc/yum.repos.d/mongodb-org-7.0.repo file so that you can install MongoDB directly using yum.

To do that we will use nano editor.

sudo nano /etc/yum.repos.d/mongodb-org-7.0.repo

Now paste the following into the terminal (use Ctrl+Shift+V to paste inside of a terminal).

[mongodb-org-7.0]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/redhat/9/mongodb-org/7.0/x86_64/
gpgcheck=1
enabled=1
gpgkey=https://pgp.mongodb.com/server-7.0.asc

Once pasted, press Ctrl + s to save and Ctrl + x to exit the editor.

Step 2: Install mongodb

Now, we can use yum package manager to install yum directly to our system.

sudo yum install -y mongodb-org mongodb-org-database mongodb-org-server mongodb-mongosh-shared-openssl3 mongodb-org-mongos mongodb-org-tools

installing mongodb using yum package manager

Starting MongoDB Services After Installation

After completing installation, we will start services for the mongodb using systemctl command.

sudo systemctl enable mongod
sudo systemctl start mongod

starting mongodb services

Running MongoDB with MongoDB Shell

You can run mongoDB using mongodb shell, using following command.

running MongoDB

How to Verify MongoDB Installation on CentOS?

You can verify the installation using following command

sudo systemctl status mongod

It should give output as follows

mongodb status

How to Uninstall MongoDB?

Step 1: Stop mongodb services

sudo service mongod stop

Step 2: Remove packages

sudo yum erase $(rpm -qa | grep mongodb-org)

Step 3: Remove data directories

sudo rm -r /var/log/mongodb
sudo rm -r /var/lib/mongo

removing mongoDB completely

Conclusion

In conclusion, MongoDB on CentOS offers flexibility and speed in data management. The installation, discussed in two methods, ensures compatibility and ease. Utilize MongoDB for efficient, secure, and regularly updated database operations.

Frequently Asked Questions to Install MongoDB on CentOS

How to resolve wget command not found error?

This error arises because of wget is not installed it in your system. To resolve it we will need to install wget package from yum package manager, using following command.

sudo yum install wget -y 

How can I install MongoDB on CentOS without internet access?

You can install MongoDB without internet access, by downloading packages as told in 1st method, copying it to targeted system and installing it using rpm -i command.

You’ll at least need internet for downloading packages.