On Wed, Jul 28, 2010 at 15:43, Irene Barg <ibarg@xxxxxxxx> wrote: > Alex, > The postmaster wouldn't start with shared_buffers = 5632MB, so we reduced it > to 2GB. The system's shared memory is: > >> [dppops@pipen18 ~]$ sudo /sbin/sysctl -a | grep kernel | grep shmmax >> kernel.shmmax = 4182863872 You can bump that up so it works with the larger setting (assuming you are running a 64bit OS): http://developer.postgresql.org/pgdocs/postgres/kernel-resources.html > The system is behaving normal now, it does create intermittant 'pgsql_tmp' > files, but removes them after the SQL statement completes. We will monitor > the logs and try to make informed tweaks to the postgresql settings as > needed. If its doing a sort or join a btree index on the appropriate column(s) may help. -- Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin