I’m facing an issue on my Nextcloud just when I try to massive upload photos from my iPhone using Nextcloud iOS client.
It start with a good speed, but after 30/40 photos the Nextcloud server stop receiving more photos and start showing a message “Webdav locker: Trying to access locked resource”.
After that I just have to cancel all files that are pending to upload because if not I constantly receive a error message “Internal server error”. Also, I can access the files that were really uploaded, but the folder that I used to upload the files will be locked as well. Because if I try to delete the folder give me error when I try it.
This only happen when I use Nextcloud iOS client, because I’ve tried from Nextcloud macOSx client and work perfectly (with more files to upload).
The locking on your normal database is not very efficient, so you should consider installing redis as filelocking cache. To reduce the effect of massive uploads, you could reduce the number of connections on the webserver …
Perhaps a bug in the ios app when there are so many with this problem. I moved into the ios-client category.
With more details, we can perhaps create a bug report. Raspian is not a very powerful system, so with a lot of upload, you can easily saturate it. Is everybody on a Raspberry here? Problems for 50 pictures and more?
There is no solution, it’s just a bug report which isn’t solved yet. If your problem is different from this, please open a new topic. You have a few hints in this thread how to analyze the problem and gather additional information.