Tasks disappear in OpenTasks app and DAVdroid is synchronizing for minutes

akn

Hello,

I'm using DAVdroid 1.6.5-play on my Samsung Galaxy A3 (2017) with Android 6.0.1 to synchronize Calendar, Contacts and Tasks with nextcloud 12.0.1.

Every time I close the OpenTask app manually, all tasks are gone. Then DAVdroid starts to synchronize for minutes while the tasks slowly appear again one after the other.

I already reinstalled the OpenTasks app and DAVdroid.

rfc2822

Please provide steps to reproduce (including logs from the server), debug info, verbose logs etc..

akn

Here is the debug info (repeating entries shortened - original file over 100 MB size): 0_1502727707032_davdroid-12077-20170814-172503.txt

I started debugging.
I closed the OpenTasks app manually.
I opened the OpenTasks app again - all tasks gone.
DAVdroid starts to synchronize.
I stopped debugging.

rfc2822

I don't see any problem with DAVdroid. What makes you think that this is a DAVdroid problem? I had a similar problem after a major Android upgrade, and I'm quite sure that it was a system bug because it went away when I uninstalled both OpenTasks and DAVdroid and then installed them again. Did you already try that?
Seems like you have many tasks:

2017-08-14 17:26:25 15 [syncadapter.TasksSyncManager] Downloading 1175 tasks (30 at once)

so that 1175 tasks have to be synchronized every time. If you want this to scale, I suggest to archive finished tasks somewhere else.

akn

It looked like a DAVdroid problem in the beginning. Later in the day I noticed, that closing the OpenTasks app causes the problem somehow.

Addition: Not just every time I close the OpenTask app manually and open it again, all tasks are gone. This also happes by itself after some minutes. Then DAVdroid starts to synchronize them again.

I already reinstalled both apps. Serveral times.

I'll delete or archive the finished tasks.

Thank you so far.

rfc2822

If there's any specific indication that this could be a DAVdroid problem, please post it here.

akn

Another phenomenon today: All tasks twice in OpenTasks app. They all disappear again when I close it. Then synchronization as usual...

akn

Problem solved. It was the OpenTasks app.

SOLUTION: In the permissions settings of the OpenTasks app the option "Contacts" (in german "Kontakte") has to be turned on.

https://github.com/dmfs/opentasks/issues/404

Thanks for your help.