Old chunk files in cache folder

ℹ️ Support
1

Info:
Nextcloud version: 12.0.1
Operating system and version: debian 8.9
Apache or nginx version: Apache 2.4
PHP version: 7.1.8

The issue you are facing:
Some gb of files ending on e.g. …-chunking-1692055206-7 with a size of 10MB are left behind in a users cache folder. They are all originating from one bigger file the user was working on. I guess the uploads did not complete due to standby, relogging, shutdown, etc. The files are between one to two weeks old.
This is set for chunk ttl: ‘cache_chunk_gc_ttl’ => 86400, . The cronjob is running correctly every 15 min.
Obviously the files did not get deleted after the defined ttl.

Will they be deleted or is there a way to savely manually delete them?

The output of your Nextcloud:
Nothing in log for the issue.

The output of your config.php file:

…
‘installed’ => true,`
‘memcache.local’ => ‘\OC\Memcache\APCu’,
‘filelocking.enabled’ => true,
‘memcache.locking’ => ‘\OC\Memcache\Redis’,
‘redis’ =>
array (
‘host’ => ‘localhost’,
‘port’ => XYZF,
‘timeout’ => 0,
),
…
‘loglevel’ => 2,
‘log_rotate_size’ => 10485760,
‘trashbin_retention_obligation’ => ‘auto, 7’,
‘versions_retention_obligation’ => ‘auto, 7’,
‘cache_chunk_gc_ttl’ => 86400,
…

2

We had such questions in the past. In general, it was save to delete these files. I would keep a copy just in case you remove something important, perhaps do a full backup before as well. I would only investigate further if such files reappear and are not deleted. Although it would be interesting to know why this happened.

3

Thank you.
Deleted them after snapshot and backup. An ./occ files:scan --all and ./occ files:cleanup took care of the database entries. No problems so far.
The affected User account syncs via mac client and worked on a quite large keynote file > 150 MB with a lot of saving and autosaving going on which lead to a multiple versions and new syncs before the last version has been completely uploaded. Maybe something went wrong there…
Will look more closely and consult the audit log next time.