Jonathan Foy <thefoy@xxxxxxxxx> writes: > My vacuums have suddenly started to fail, seemingly at random. I am > confused. > I'm running 8.1.3, with close to a dozen servers, up to 150 databases each. > I have 8GB of RAM. Vacuums have started to fail on all servers (though only > the occasional vacuum) with the following error: > VACUUM,ERROR: out of memory > VACUUM,DETAIL: Failed on request of size 268435452 I'd back off maintenance_work_mem if I were you. I think you don't have enough RAM to be running a lot of concurrent VACUUMs all with the same large memory consumption. Also, if it's really 8.1.3, consider an update to 8.1.something-recent. Not only are you exposed to a number of very serious known bugs, but this patch in particular would likely help you: http://archives.postgresql.org/pgsql-committers/2007-09/msg00377.php regards, tom lane -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
