[v9.1.6] how to reset owncloud management and all connected services

[nnako]

I'm giving up on scanning the internet for solutions of technical things concerning owncloud which I have not fully understood, yet (which makes asking the right question extremely difficult). So, I rather just want to completely reset my owncloud installation and service. This reset would include the following parts:

• keep all user settings and access rights
• clear file history of all my hosted files (just keep the latest version of them)
  • this might include removal of version files
  • this might include reset of certain parts of the owncloud database
• clear all relevant log files for Nginx, PHP, Php5-fpm, owncloud, ... (some have already 20MB)
• restart all relevant services
• ...

Is there a way to do this? maybe a short process description or cookbook?

I hope that in doing so, things become clearer for me to find a cause for the installation's strange misbehaviors, after updating from v8.0.3 over several versions to v9.1.6 as described in the following thread:

No connection to owncloud v9.1.6 after upgrade

Steps to reproduce try to access owncloud service via windows client by https://192.168.1.33/index.php -> n.ok try to access owncloud service via SSH on server -> ok Expected behaviour normally, the owncloud service brings forth any page (calendar, documents,... or sometimes the login page) Actual behaviour HISTORY in 2014 I first installed the owncloud server on a RaspberryPi, which worked fine. I kept it quite happily at a very early version v8.0.3 for many months (i.e. some years)…

Thanks.

[franzhartwig]

Hm. I would try:

• disable the versions app:
  cd /var/www/owncloud
sudo -u www-data php occ app:disable files_versions

• delete the version files:
  rm datapath/user/files_versions
  (replace "user" with an existing username and repeat for all usernames of your installation)

• scan your files to update the database:
  sudo -u www-data php occ files:scan
  All database entries in the table oc_filecache with the path files_versions should disappear. If not, I would try to delete them in the database directly.

• Logfiles should be managed from logrotate automatically. You can try to force rotating:
  sudo logrotate -f /etc/logrotate.conf

• Restarting of services should not be necessary. But if you really want to do it:
  sudo service nginx restart
sudo service mysql restart
  There are any PHP related services.

I don't know the paths your nginx installation uses. So you have to replace "datapath" and "/var/www/owncloud" to fit for your installation. And I do not know the user, your nginx installation runs with. So you have to replace "www-data" with the correct user.