Comment 12 for bug 882699

On Wed, 02 Nov 2011 19:27:21 -0000, Martin Albisetti <email address hidden> wrote:
> So, the error is the following (sorry, private, here for the
> developers): https://pastebin.canonical.com/55249/
>
> It's essentially a locking problem on the database, which points to 2 write operations happening very close together.
> Michael, is it possible deja dup is doing parallel operations?
>
> If not, is there a way to reproduce this problem consistently? If
> there is, we can spend some time debugging on our end what's causing the
> lock-up.
>
> --
> You received this bug notification because you are a member of Ubuntu
> One, which is subscribed to Ubuntu One Servers.
> https://bugs.launchpad.net/bugs/882699
>
> Title:
> Déjà Dup fails with "Got status code 500" when starting backup
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/deja-dup/+bug/882699/+subscriptions

we have considerable contention on that table (look at the oops
reports), which is one of the main reasons we're refactoring the file
sync servers (which has triggered some performance regressions).

So. Working on it.