"Kevin Grittner" <Kevin.Grittner@wicourts.gov> writes:
> Claudio Freire <claudio@livra.com> wrote:
>> I know it doesn't look like a deadlock from where you're standing,
>> but it does so from where I am.
> It's possible that you're filtering out the information which would
> be most useful to diagnosing the problem. Next time it happens,
> please send the entire output from pg_locks and pg_stat_activity
> (preferably as attachments to avoid wrapping issues), along with the
> information listed under "Things you need to mention" on this page:
An even better thing, if you can spare a few minutes for analysis
next time it happens, is to attach to each backend process with gdb
and get a stack trace. If there is a deadlock that would probably
be enough information to understand what it is.
regards, tom lane
