I am sorry, since this mail might be confusing
Today I tried to update my private installation of NC 20.0.9 to 21.0.1 using the web updater (buster, nginx, php-fpm on a Intel(R) Celeron(R) J4105, 16 GB Ram - serving me and my family where some kids studying in towns quite some miles away).
After finished NC told me that the ajax cron I was using hasn’t run for a long time and it should be prefered to use the crontab. So I add the recommended cron job all 5 minutes in www-data’s crontab.
Moreover the status page told me:
Some .well-know issues and an occ db:add-missing-indices issue as usual.
I tried to add the missing indices but the process was suddenly killed. Tried different occ commands and found out everything was killed :(. I searched the web and read this or that. After all I found that disabling apc or using apc.enable_cli=1 fixed the issues. I could add the missing indices using occ.
However afterwards my installation was stuck.
I found 3 cron processes started. I stopped those and used cron on the command line. It took a time but finished well. Nginx is logging the access (200) but the nextcloud.log does not log anything in spite logging is at debug level in config.php.
Any idea how to dig deeper or what to try next? TIA.