Incomplete library when a sync is halted

Support
1

Issue description:

(Copy and paste from Cancel/Pause sync or Only delete entries upon user command)
I noticed that if the app was killed during a sync, or there was a network problem (for example, when I go out and there is a short break when switching from wifi to mobile network), the sync will be incomplete.
I have ~8000 songs in my library, and if the sync is halted at, say, around 1000 songs, I’ll lose the data for the rest 7000.

I did not know this was not supposed to happen. I am posting this and providing the log of repro as suggested in the previous post.

Logs:

Upload description: sandimy_sync

Additional information:

The sync in the log is performed with Google Drive, which is not available in the drop list of the post. I chose Onedrive instead since I have observed the same problem with Onedrive.
Edit: add Google Drive after posting

Reproduction steps:

When the library is ready, do a new sync from the filter.
During the sync, turn off the network or kill the app.
The data of the unsynced songs will be lost.

Media provider:

One Drive, Google Drive

Screenshots:

     

2

So seems some network disconnection does not trigger sync fail, will fix.

But there’s no way an app kill to generate missing data as the transaction can’t be validated.

1 Like
3

I tried a few times, and yes, you’re right; killing the app did not overwrite the library.
Unfortunately, I knew the incomplete library was not the expected behavior a couple of days after my last data loss, and the problematic sync was no longer in the log. I was not able to repro. Maybe there were some network errors.
Let’s just hope it will never happen again. (I’ll remember to get the log if it happens)

4

Out of curiosity: Why does the sync fail at all when the network connection is lost instead of being paused and then resumed when a connection is reestablished? That would take a lot of the annoyance out of my 50+min syncs.

5

Because data integrity and transactions.

Pausing and continuing 2 days later does not work, ids may have change, data have changed, …

IIRC you were supposed to send me logs about sync issue still waiting :slight_smile: