[Csaba Nagy - Thu at 10:45:35AM +0200]
> So you should check for "idle in transaction" sessions, those are bad...
> or any other long running transaction.
Thank you (and others) for pointing this out, you certainly set us on
the right track. We did have some few unclosed transactions;
transactions not beeing ended by "rollback" or "commit". We've been
fixing this, beating up the programmers responsible and continued
monitoring.
I don't think it's only due to those queue-like tables, we've really
seen a significant improvement on the graphs showing load and cpu usage
on the database server after we killed all the "idle in transaction". I
can safely relax still some weeks before I need to do more optimization
work :-)
(oh, btw, we didn't really beat up the programmers ... too big
geographical distances ;-)
