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Nextcloud version: 21.0.3
Operating system and version: Ubuntu 20.04.2 LTS
Apache or nginx version: Caddy server v2.3.0
PHP version: 7.4.3
The issue you are facing:
Cannot update missing indices.
Is this the first time you’ve seen this error? (Y/N): Yes
Steps to replicate it:
sudo -u www-data php occ db:add-missing-indices
The output of your Nextcloud log in Admin > Logging:
(no idea where I can find that info)
The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):
...
'memcache.local' => '\\OC\\Memcache\\APCu',
...
The output of your Apache/nginx/system log in /var/log/____:
command-line output:
An unhandled exception has been thrown:
OC\HintException: [0]: Memcache \OC\Memcache\APCu not available for local cache (Is the matching PHP module installed and enabled?)
Additional info:
I upgraded from 20.0.11 (I think, latest), then to 21.0.3, which arrived yesterday (I waited for it to appear in “stable”, as I was trying to avoid issues like these).
There was a 2nd problem after this upgrade: cron ceased to work. I switched to AJAX, the only option which made the error message go away (“cron has not run for 2 days”).
Update - as mentioned in the guide, the cron issue can be fixed by adding --define apc.enable_cli=1 to the cron job. It’s odd that this change is needed after the upgrade, but at least it seems to solve the cron issue.
