Redis (Drupal)

The Redis Drupal module uses two backends for dealing with a Redis database, one powered via PhpRedis and one via Predis.

These backends provide a way to work with a Redis database from Drupal's PHP code.

They help developers replace the built-in caching system with one powered by Redis, a known solution for caching systems around the Internet, mainly for its better speeds.

Installation:

Login the Drupal administration panel.
Go to Modules section.
Upload the module or copy&paste the module download URL.
Find and activate the module after installation in the modules list.

What is new in this release:

• Express release that fixes a single bug in the getMultiple() method since the previous release. Everyone should upgrade immediately.

What is new in version 7.x-3.7:

• Express release that fixes a single bug in the getMultiple() method since the previous release. Everyone should upgrade immediately.

What is new in version 7.x-3.3:

• This is a maintenance release that fixes a couple of bugs, including one very important: some cache items were not invalidated when created, deleted then recreated at the exact same second. This was due to a wrong timestamp check.

What is new in version 7.x-3.0:

• PhpRedis and Predis code has been dramatically reduced in the flavor of backend agnostic business code for handling all Drupal cache configuration and behavior specifics.
• The module now requires the EVAL command and a few LUA scripts to work, therefore Redis server minimal required version is now 2.6.0 compiled with LUA scripting capabilites. For all users that cannot upgrade, please continue using the 2.x versions which will remain supported and maintained for bugfixes.
• Redis usage should scale a lot better thanks to LUA scripting - you shouldn't experience cache flush problems anymore.
• Default flush modes for bins have changed since the module scales better.

What is new in version 7.x-2.10:

• Minor maintenance release - issue queue cleaning.

What is new in version 7.x-2.6:

• Fixes a CRITICAL bug where Redis connection where randomly stalling under random conditions.

What is new in version 7.x-2.0:

• Numerous documentation fixes and a few minor code styling issues
• PhpRedis lock implementation caused fatal errors when WATCH command failed server side
• Fixes documentation and client selection (Predis or PhpRedis) in settings.php is now optional and can be determined at runtime
• Unit tests fail while using Redis cache
• Redis module was deleting permanent cache items during cron calls due to a wrong switch statement in code

Requirements:

• Drupal 7.x
• Redis