[Owncloud] Fwd: How I just lost 2/3 of my files to the sync-client

[Benjamin Schieder]

Am 2014-02-06 14:28, schrieb Klaas Freitag:
> On 05.02.2014 14:20, Benjamin Schieder wrote:
>> At some point, the sync client encountered a 500 Internal server error
>> and stopped working.
>> During investigation, the sync client crashed and I restarted it.
> 
> Can you maybe remember when that hapened? What did you do to
> "investigate"? We analyzed on here, but still can not reconstruct a
> situation that lead to the described behaviour. Maybe you remember
> more information?

After the 500, I opened the clients "Activity" tab.
I _think_ it crashed when I clicked "retry sync".

>> Now it started to sync again but started deleting files on the server
>> and locally.
> Ok, here is why files are deleted:
> a) on the client: The files are listed in the client journal and have
> not changed (compared to the database entries). Now on the sync run
> the server has the files not longer in the listing. That means they
> have been removed on server side and that is done than on client side
> as well.
> 
> b) on the server: very similar, the files are in the client database
> but not longer present in the physical local file system. That means
> they were locally deleted. If they are still in the same state as
> before on the server, the local remove is propagated and the files are
> deleted on the server.
> 
>> In the end, only the files successfully "Moved" were kept, all others
>> that existed on the server but not on the client or vice-versa were
>> deleted.
> 
> Benjamin, can you provide the server access log of that accident?

I will prepare it.