Memcache Redis issue

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Nextcloud version: 21.0.0
Operating system and version : CentOS 8
Apache or nginx version: Litespeed (Openlitespeed on CyberPanel)
PHP version: 7.4

The issue you are facing:

Is this the first time you’ve seen this error? (Y/N): Y

Steps to replicate it:

  1. I want to run NC on Redis and redis works well with other apps and CLI testings. However, something is wrong in config content.

  2. Everything works well if I run NC on Memcached

'memcache.local' => '\OC\Memcache\APCu',
'memcache.distributed' => '\OC\Memcache\Memcached',
  1. But it not works with
'memcache.locking' => '\OC\Memcache\Redis',
'memcache.distributed' => '\OC\Memcache\Redis',
'redis' => [
	'host' => 'localhost', 
	'port' => 6379,
	'timeout' => 2.0,
	'dbindex' => 0, 
],
  1. So, to be honest, for me is not clear what exactly is wrong. I tried also to replace ‘localhost’
    a) with exact same value of ‘trusted_domains’ (installation domain),
    b) with ’ /var/run/redis/redis-server.sock’,
    c) with ‘/tmp/redis.sock’

QUESTION

What is wrong here?

#2

Pleaee provide DETAILED error messages from your Nextcloud log file if you try to access Redis. Without the error messages it won’t be possible to give you any advice.

#3

Have you seen the official docs?
https://docs.nextcloud.com/server/21/admin_manual/configuration_server/caching_configuration.html?highlight=redis#id2

On my ubuntu system the config looks different

'memcache.locking' => '\\OC\\Memcache\\Redis',
'memcache.distributed' => '\OC\\Memcache\\Redis',

See the double backslashes and I was in the need to add a password.
The array syntax is different as well.

#4
  1. I used syntax from config.sample.php.
  2. No problem to try with double backslashes, but how looks your array syntax?
#5

Forget about my syntax comments. There are different ways to write arrays in php.
Use the official docs and troubleshoot your issue.