Install or Uninstall Redis

This article covers how to install or uninstall Redis on VPS and Dedicated Servers using the EPEL repository.

Redis is an in-memory data structure store, used as a database, cache, and message broker.  Redis is the de facto solution for caching in almost every application, can handle millions of queries per second, and offers high availability and scalability.

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SSH into VPS or Dedicated Server

Install Redis

IMPORTANT: Redis is only available on VPS and dedicated hosting.
IMPORTANT: This solution will require root access. If this needs to be obtained, follow the guide on requesting root access.

1. SSH into the server as root
2. Install and update the EPEL repository
   

   yum install epel-release
   yum update

3. Install the Redis server
   

   yum install redis

4. Start the Redis service
   

   systemctl start redis

   IMPORTANT: If the above command fails, use service redis start instead.
5. Ensure that Redis starts automatically when the server is restarted
   

   systemctl enable redis

   IMPORTANT: If the above command fails, use chkconfig --add redis instead.
6. Ensure that Redis is operational on the server
   

   redis-cli ping

   TIP: If successful, Redis will respond with PONG.

Uninstall Redis

IMPORTANT: This solution will require root access. If this needs to be obtained, follow the guide on requesting root access.

1. SSH into the server as root
2. Ensure that Redis does not start automatically when the server is restarted
   

   systemctl disable redis

   IMPORTANT: If the above command fails, use chkconfig --del redis instead.
3. Stop the Redis service
   

   systemctl stop redis

   IMPORTANT: If the above command fails, use service redis stop instead.
4. Uninstall the Redis server
   

   yum remove redis