On Mon, Feb 7, 2011 at 05:03, Craig Ringer <craig@xxxxxxxxxxxxxxxxxxxxx> wrote: > What would possibly help would be if Pg could fall back to lower > shared_buffers automatically, screaming about it in the logs but still > launching. OTOH, many people don't check the logs, so they'd think their > new setting had taken effect and it hadn't - you've traded one usability > problem for another. Even if Pg issued WARNING messages to each client > that connected, lots of (non-psql) clients don't display them, so many > users would never know. > > Do you have a suggestion about how to do this better? The current > approach is known to be rather unlovely, but nobody's come up with a > better one that works reasonably and doesn't trample on other System V > shared memory users that may exist on the system. We could do something similar to what Apache does -- provide distros with a binary to check the configuration file in advance. This check program is launched before the "restart" command, and if it fails, the server is not restarted. Regards, Marti -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance