Redis Cache By Xon 2.18.1

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/
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.