Overview Version (4) Discussion (4)

• 

  Redis Cache By Xon

  This add-on uses Credis with a custom cache provider for Redis. For best performance, install the ph

  redis cache

  redis cache by xon
  About this resource

  This add-on uses Credis with a custom cache provider for Redis. For best performance, install the php extension: phpredis
  
  You must have a Redis instance installed, this is likely not possible with shared hosting
  
  While XenForo 2 has a redis connector, it requires phpredis. This add-on does not.
  
  Feature overview
  

  • A pure php redis connector
  • High availability support
  • Exposes redis cache object for use for use by other add-ons
  • Implements some minor caching of forum thread counts
  • Redirect's XenForo's individual css template caching to hit redis as otherwise it causes unexpected write & deadlocking on the xf_css_cache table

  Installation
  
  Edit src/config.php and add:
  

  PHP:

  $config['cache']['enabled'] = true;
  $config['cache']['sessions'] = true;
  $config['cache']['provider'] = 'SV\RedisCache\Redis';
  $config['cache']['config'] = [
      'server' => '127.0.0.1',
      'port' => 6379,
  ];

  
  For details see the XenForo Manual: https://xenforo.com/docs/xf2/cache/
  
  @eva2000 has also written an in-depth walkthrough around setting up redis and this add-on:
  See "Xon's Redis Cache Addon For Xenforo 2.x" from:
  https://community.centminmod.com/th...on-centmin-mod-123-09beta01-lemp-stack.16060/
  Troubleshooting
  
  Please be aware that Redis is very sensitive to latency in a virtual environment. If repeated connection failures or protocol errors are experienced disable any Redis Persistence options.
  
  Options
  By default, forum thread counts are cached. In general, this is observable when moving large number of threads from one forum to another, and the total page counts are wrong.
  
  

  

  
  
  Redis Statistics
  Admincp dash board is extended with basic redis statistics:
  
  

  

  
  
  Debugger Statistics
  Include redis timings when using the _debug=1 view for a page
  
  Read Scaling
  
  With the $config['cache']['config']['load_from_replica'] option, reads can be deferred to a singular replica instance. This takes all the options of 'config' (except the replicaconfig)
  
  See the FAQ for configuration samples.
  
  High availability
  
  The Zend component support primary/replica setups with Redis Sentinel support. It does not support Redis multi-master clustering.
  

  • Additionally, this add-on implement caching of thread counts in a forum.
  • Redis Sentinel support for high-availability (see FAQ for details).
• Version

  2.18.9 Stable Available Mar 5, 2026 · 1

  Download

  File size: 82.2 KB

  SHA-256: 45e0d86f33c40e61f1891a2c7448484facf0cfcbd72e683d6e4f81efdd47b018

  SHA-256 verified Package valid Compatibility checked Last verified: Wednesday at 12:10 AM

  • Fix XF2.3 compatibility where "Call to undefined method Symfony\Component\Cache\Adapter\RedisAdapter::getRedis()" could occur depending on exact caching configuration
  • Fix sentinel high-availability support could sometimes try to communicate with a "down" replica due to a missing check
  • Displaying valkey version information in redis stats block

  2.18.8 Stable Available Feb 9, 2026 · 0

  Download

  File size: 81.8 KB

  SHA-256: 4956335fe84fb4c99f7f66ef4fb124d053d1b37133639ab01a24c9ae4d821e2f

  SHA-256 verified Package valid Compatibility checked Last verified: Wednesday at 12:10 AM

  • Fix showing an empty "maxmemory" redis info section in admincp

  2.18.7 Stable Available Jan 4, 2026 · 0

  Download

  File size: 81.7 KB

  SHA-256: 7895f5767386f78d84e29e44bc9e2c034339320ea7b496429a8da0953bc7b9af

  SHA-256 verified Package valid Compatibility checked Last verified: Wednesday at 12:10 AM

  • Fix incorrect order of applying TLS options for a connection and using redis password authentication when not using phpredis extension
  • Fix dragonflydb support when displaying redis stats block around memory usage
    • Note; full dragonflydb functionality has not been tested

  2.18.6 Stable Available Oct 26, 2025 · 0

  Download

  File size: 84.8 KB

  SHA-256: 97fee25f6d5e89f1e6493cd8fa9e23b5a42be0e1716c13b6380b53bb18f714cb

  SHA-256 verified Package valid Compatibility checked Last verified: Wednesday at 12:10 AM

  This add-on uses Credis with a custom cache provider for Redis. For best performance, install the php extension: phpredis
  
  You must have a Redis instance installed, this is likely not possible with shared hosting
  
  While XenForo 2 has a redis connector, it requires phpredis. This add-on does not.
  
  Feature overview
  

  • A pure php redis connector
  • High availability support
  • Exposes redis cache object for use for use by other add-ons
  • Implements some minor caching of forum thread counts
  • Redirect's XenForo's individual css template caching to hit redis as otherwise it causes unexpected write & deadlocking on the xf_css_cache table

  Installation
  
  Edit src/config.php and add:
  

  PHP:

  $config['cache']['enabled'] = true;
  $config['cache']['sessions'] = true;
  $config['cache']['provider'] = 'SV\RedisCache\Redis';
  $config['cache']['config'] = [
      'server' => '127.0.0.1',
      'port' => 6379,
  ];

  
  For details see the XenForo Manual: https://xenforo.com/docs/xf2/cache/
  
  @eva2000 has also written an in-depth walkthrough around setting up redis and this add-on:
  See "Xon's Redis Cache Addon For Xenforo 2.x" from:
  https://community.centminmod.com/th...on-centmin-mod-123-09beta01-lemp-stack.16060/
  Troubleshooting
  
  Please be aware that Redis is very sensitive to latency in a virtual environment. If repeated connection failures or protocol errors are experienced disable any Redis Persistence options.
  
  Options
  By default, forum thread counts are cached. In general, this is observable when moving large number of threads from one forum to another, and the total page counts are wrong.
  
  View attachment 477
  
  Redis Statistics
  Admincp dash board is extended with basic redis statistics:
  
  View attachment 478
  
  Debugger Statistics
  Include redis timings when using the _debug=1 view for a page
  
  Read Scaling
  
  With the $config['cache']['config']['load_from_replica'] option, reads can be deferred to a singular replica instance. This takes all the options of 'config' (except the replicaconfig)
  
  See the FAQ for configuration samples.
  
  High availability
  
  The Zend component support primary/replica setups with Redis Sentinel support. It does not support Redis multi-master clustering.
  

  • Additionally, this add-on implement caching of thread counts in a forum.
  • Redis Sentinel support for high-availability (see FAQ for details).
• Discussion

  This resource has a discussion thread on the forum where you can ask questions, report issues, and talk with the author and other users.

  Join the discussion (4)