How to Install Redis and PHP Redis on a cPanel Server?

Users of cPanel manage a Linux-based server, hence Redis and PHP Redis must be installed. Developers using PHP to construct their projects need this software.

A robust and open-source in-memory data structure store is called Redis. In addition to having lists, hashes, strings, sets, and sorted sets, it also functions as a key-value store. Redis makes it simple to store vast volumes of data without compromising the speed of data transport. It updates fresh material while clearing off the old cache thanks to a passive data caching technology.

To Install Redis

1. Log in to your cPanel server via SSH.

2. Run these commands to download the rpm files for Redis.

# wget http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm

# wget http://rpms.famillecollet.com/enterprise/remi-release-6.rpm

3. Enter and run these commands to install Redis:

# rpm -Uvh remi-release-6*.rpm epel-release-6*.rpm

# yum install –y redis

With this, you will have installed the Redis on your server.

4. Run this command to enable Redis:

# chkconfig redis on

It will allow Redis to start its operation on the server reboot automatically.

Now that you have done the installation, we will move on to configure Redis.

5. Open the redis.conf file and enter/copy these lines at the end of the file:

vi /etc/redis.conf

maxmemory 256mb

maxmemory-policy allkeys-lru

It will set the basic configurations for Redis on your server. Consequently, it is now time that you install the PHP Redis extension.

To Install PHP Redis

1. Log in to WHM with root access.

2. Select the Software option from the navigation menu.

3. Click on Module Installers.

4. Click Manage for PHP Pecl.

The PHP Pecl Installer section will open.

Do you see the Find a “PHP PECL” section? Good!

5. Type “redis” in the Search box and click Go.

6. The search will return the appropriate PHP Redis module. Click Install.

It will install the PHP extension that will act as an interface for Redis.

7. Finally, run these commands in the SSH:

# service httpd restart

# service redis restart

It will restart Redis and httpd for the changes to take effect.

With it, the installation of Redis and PHP Redis on your cPanel server will be complete.