Re: Query to detect long-running transactions?

am  Mon, dem 22.10.2007, um 10:46:58 -0400 mailte Brian Hurt folgendes:
>
> I'm wondering if there is a query I could run to detect long-running
> transactions?  Basically, I want to know all transactions (either on a
> given server or just on a given database) that have been running for
> longer than some parameterized amount of time.

You can log all statements with a duration time higher than a limit:

log_min_duration_statement = N

with N in ms.

>
> I've spent some time with the friendly manual (especially Chapter 42 and
> 12), and didn't see anything usefull.
>
> I'm having a problem with stupid humans (including yours truely)
> forgetting they have a transaction outstanding and wandering off for a
> weekend.  What I'd like to do is write a quick script that queries the

You can query pg_stat_activity for query_start and compare that with the
current time to find long running transactions (current_query : '<IDLE>
in transaction'). Hope that helps.


Andreas
--
Andreas Kretschmer
Kontakt:  Heynitz: 035242/47150,   D1: 0160/7141639 (mehr: -> Header)
GnuPG-ID:   0x3FFF606C, privat 0x7F4584DA   http://wwwkeys.de.pgp.net