Sync with only one Android causes database errors

steve.w

The situation:
NAS with Baikal 0.4.6 with 3 calendars running.
Syncing with two different Thunderbird works fine.
Syncing with Davdoid on Android-Tablet works fine.
Syncing with Davdroid on smartphone of my wife works fine.

Syncing 2 of the 3 calendars on my smartphone works fine...
but the 3rd calendar (for my job) doesn't work correct.

Since a few day i get always get en database error while syncing the calendar "swo".
I am syncing this calendar with Outlook (on the job), with Thunderbird and with the Android-Tablet without problems.

Only on my old (Samsung S3 mini with cynogenmod) and on my new Smartphone (Moto G3 wit Android 6) i get this error.
Although all events are displayed as it seems, but i am not sure.
Anyway i am not sure wether all events are synced complete.

I have already tried to clean the database of all entries and imported from ics-files on the Moto G3. Still the same error on syncing.
Any hint 4 me ?

Debug
Info

rfc2822

There seem to be problems with the exceptions of the recurring event /html/dav.php/calendars/steve/swo/8175b277-a5f0-4c4b-95aa-636632459a1b.ics. Can you please post it or send to play@bitfire.at (PGP)?

Does sychronizing other events work on those devices?

steve.w

Yes, as it seems all other other events will be synced...

Unfortunately all events have another uri (the long string at the end) in my database since i have cleaned this calendar and build it up again from an complete ics-file.

So the event you are asking for has an new uri.
I have to repeat the log-file to find out the new uri causing the problem.
How do i recognise the event causing problems in the log-file ?

rfc2822

The last "Adding to local calendar" entry before the error message:

2016-09-03 01:17:18 1 [syncadapter.CalendarSyncManager] Adding 8175b277-a5f0-4c4b-95aa-636632459a1b.ics to local calendar
[ … ]
2016-09-03 01:17:18 1 [ical4android.BatchOperation] Committing 91 operations …
2016-09-03 01:17:18 1 [ical4android.BatchOperation] Running operations 0 to 90
2016-09-03 01:17:19 1 [syncadapter.SyncManager] Couldn't access local storage
EXCEPTION at.bitfire.ical4android.CalendarStorageException: Batch operation failed partially (only 0 of 91 operations done)
        at at.bitfire.ical4android.BatchOperation.runBatch(BatchOperation.java:90)
        at at.bitfire.ical4android.BatchOperation.commit(BatchOperation.java:58)
        at at.bitfire.ical4android.AndroidEvent.add(AndroidEvent.java:357)
        at at.bitfire.davdroid.syncadapter.CalendarSyncManager.processVEvent(CalendarSyncManager.java:228)
        at at.bitfire.davdroid.syncadapter.CalendarSyncManager.downloadRemote(CalendarSyncManager.java:194)
        at at.bitfire.davdroid.syncadapter.SyncManager.performSync(SyncManager.java:170)
        at at.bitfire.davdroid.syncadapter.CalendarsSyncAdapterService$SyncAdapter.sync(CalendarsSyncAdapterService.java:67)
        at at.bitfire.davdroid.syncadapter.SyncAdapterService$SyncAdapter.onPerformSync(SyncAdapterService.java:87)
        at android.content.AbstractThreadedSyncAdapter$SyncThread.run(AbstractThreadedSyncAdapter.java:272)

steve.w

Thanx a lot. Found the suspicious event in my database deleted it and recreated it manually.
Now it works again ;-)