User reports memcache.locking setting to Redis causes internal server error

[samuel-emrys]

A user has reported that the following command:

$ su -m www -c 'php /usr/local/www/nextcloud/occ config:system:set memcache.locking --value="\OC\Memcache\Redis"'

causes an internal server error. This may be related to changes present in nextcloud 20.0.0. Attempt to replicate and investigate why this is occurring and update the guide to reflect any findings.

[imxq]

This issue also happened to me as well. Workaround is to start all over again, not being able to cache and skip this step.
Nextcloud works fine without this step.

[Jrjy3]

I've found that adding apc.enable_cli=1 to php.ini fixes this issue as well as many others (like updating to Nextcloud 21).

The Nextcloud documentation article for APCu caching recommends adding this. I added the line right after uncommenting opcache.enable_cli=1 and the setup worked well for me.