How To Install Redis on CentOS 6

For those of you who didn’t know, Redis is an open source, BSD licensed, advanced key-value store. It is often referred to as a data structure server since keys can contain strings, hashes, lists, sets and sorted sets. Redis also supports datatypes such as Transitions, Publish and Subscribe. ‘Redis ’ is considered more powerful than ‘Memcache’ . It would be smart to bring ‘Redis’ into practice and put ‘Memcache’ down for a while.

This article assumes you have at least basic knowledge of linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple. I will show you through the step by step installation Redis on CentOS 6.

Step 1. First, you need to enable EPEL repository on your system.

Step 2. Install Redis with Yum.

Enable Redis service to start on boot:

Check if Redis is Running:

To make sure redis is working, run command “redis-cli ping” from commandline. If you get result “PONG”, that shows redis is working.

Step 3.  Install Redis PHP extension.

After we have Redis installed we will need the PHP-REDIS extension. Using following command:

Now open php.ini file and add the following line to it:

Now restart Apache to apply the changes to php.ini file:

Step 4. Install web interface for Redis.

phpRedisAdmin is a simple web interface to manage Redis databases:

Make sure the setting are correct:

Lets add the RedisAdmin configuration file to Apache:

Create a Bash Script to make sure Redis is running:

Make the Script executable:

Add your script to your cron to run every 3 minutes or so:

Congratulation’s! You have successfully installed Redis. Thanks for using this tutorial for installing Redis server on CentOS 6 system.