CentOS 7.x Owncloud file cache and sharing

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Table oc_filecache has cache information. But that information is used in oc_share to understand which files are shared with whom. Hence the information in that table is critical. If there is a path issue then use:

   cd /opt/owncloud-10.0.10-4/apps/owncloud/htdocs
   sudo -u daemon /opt/owncloud-10.0.10-4/php/bin/php occ files:scan --all

For faster recovery we can also given path such as

   sudo -u daemon /opt/owncloud-10.0.10-4/php/bin/php occ files:scan --path "admin/files/HR DEP/hr2"

If apache is running with other user privileges eg apache then you may have to do 'sudo -u apache' instead of 'sudo -u daemon'

The above scan also helps with "File does not meet checksum issue" if any reported by owncloud client

In any case do not truncate or delete rows from oc_filecache manually or else all sharing will get broken.

Refer:

• https://github.com/owncloud/core/issues/14684
• https://doc.owncloud.org/server/9.0/admin_manual/configuration_server/occ_command.html

For file locks error during scan

Go to maintenance mode, delete all rows from filelocks table and then switch of maintenance mode using:

    cd /opt/owncloud-10.0.10-4/apps/owncloud/htdocs
    sudo -u daemon /opt/owncloud-10.0.10-4/php/bin/php occ maintenance:mode --on

    (With MySQL)   truncate table oc_filelocks;

    cd /opt/owncloud-10.0.10-4/apps/owncloud/htdocs
    sudo -u daemon /opt/owncloud-10.0.10-4/php/bin/php occ maintenance:mode --on

Refer CentOS 8.x Owncloud direct DB queries for connecting to owncloud database

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