Valkey

Valkey is a high-performance, open-source in-memory key–value store designed as a community-driven fork of Redis for fast caching and data structure operations.

With its capability to store and serve data from RAM, it minimizes the need for time-consuming database queries, significantly enhancing website performance.

Enable / Disable​

You have the option to enable or disable the Valkey service container as necessary. Choosing to disable it will promptly clear (delete) all existing Valkey data from memory.

Enabling the Valkey service container will initiate the Valkey container service on the default port, which is 6379.

Set Memory Limits​

Upon initialization the Valkey container has default memory limits set, it is advisable to set memory limits appropriate to your use case and needs.

You can set these limits on the /containers interface which is accessible through the user panel navigation on Docker/containers .

Connect to Valkey​

To establish a connection to your Valkey instance, use the following details:

• Server address: valkey (not 127.0.0.1)
• Port: 6379 (the default Valkey port)

For testing the connection to the Valkey server, you can use the 'telnet' command in your terminal or refer to example scripts bellow.

Test connection with PHP​

1. Using FileManager enter the directory of your website
2. Create a new file named valkey-test.php
3. Add the following code in the newly created file and save:

<?php 
   //Connecting to Valkey server on localhost 
   $redis = new Redis(); 
   $redis->connect('redis', 6379); 
   echo "Connection to server successfully"; 
   //check whether server is running or not 
   echo "Server is running: ".$redis->ping(); 
?>

4. In your browser navigate to your website and add /valkey-test.php for example, if your website is example.com you should open example.com/valkey-test.php

You should see the Server is running message.. indicating that the Valkey service is active and connection is established.

WordPress plugins​

To incorporate Valkey caching into your WordPress website, a WordPress plugin is required. Below are some of the WordPress plugins we evaluated for Valkey/Redis caching:

• Redis Object Cache
• Use Redis

View Logs​

You have the option to view the Valkey service logs. By doing so, you can identify any service errors or, for instance, determine whether memory limits have been reached.