On Fri, Aug 28, 2009 at 12:47:15PM -0400, Tom Lane wrote: > hubert depesz lubaczewski <depesz@xxxxxxxxxx> writes: > > On Fri, Aug 28, 2009 at 12:28:06PM -0400, Tom Lane wrote: > >> Hm, do you have forty or so idle backends hanging around while this > >> happens? The only thing I can think of that might be causing this is > >> shared cache invalidation messages being broadcast to all the other > >> sessions. > > I have about 1000 backends running. > Ouch. You need to update to 8.4 --- the SI messaging stuff will > definitely be hurting you with that many backends. Or consider > using connection pooling or something to cut the number of backends. thanks. it looks like i will not be spared this fun :) Best regards, depesz -- Linkedin: http://www.linkedin.com/in/depesz / blog: http://www.depesz.com/ jid/gtalk: depesz@xxxxxxxxxx / aim:depeszhdl / skype:depesz_hdl / gg:6749007 -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general