Re: vacuum: out of memory error

On Nov 24, 2006, at 4:59 AM, Jakub Ouhrabka wrote:
> DETAIL:  Failed on request of size 262143996.
> STATEMENT:  VACUUM ANALYZE tablename
>
> There are few of them, always the same request size(?) but
> different two databases (out of 100+) and few different tables
> (pg_listener, pg_statistic and few slony tables). Vacumm analyze is
> issued by pg_autovacuum.
>
> We're also seeing strange behavior of listen/notify in possibly
> corrupted database: there are notify events being received by
> listen process which the process didn't subscribed to. Can this be
> connected?
>
> I've done little research in mailing list archives and I found
> possible cause: table corruption caused by flaky hardware. Does it
> sound about right? Are there any other possible causes?

That can also be caused by setting maintenance_work_mem too high for
what your hardware is capable of, though I agree that given the other
problems it's likely that there is some kind of corruption.
--
Jim Nasby                                            jim@nasby.net
EnterpriseDB      http://enterprisedb.com      512.569.9461 (cell)