On Fri, Apr 9, 2010 at 12:03 PM, Greg Smith <greg@xxxxxxxxxxxxxxx> wrote: > The main problem with this configuration is that work_mem is set to an > unsafe value--1.6GB. With potentially 400 connections and about 2GB of RAM > free after starting the server, work_mem='4MB' is as large as you can safely > set this. if you need more work_mem for this or that and also need to serve a lot of connections, you can always set it locally (1.6GB is still too high though -- maybe 64mb if you need to do a big sort or something like that). Another path to take is to install pgbouncer, which at 400 connections is worth considering -- but only if your client stack doesn't use certain features that require a private database session. zabbix will _probably_ work because it is db portable software (still should check however). merlin -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance