On Tue, Apr 14, 2009 at 12:25 AM, Bryce Nesbitt <bry...@obviously.com> wrote: > We have a medium scale installation of Postgres 8.3 that is freezing about > once a week. I'm looking for any hints on how to diagnose the situation, as > nothing is logged. > > The system is matched pair of Sunfire servers, running Debian Etch with a > 2.6.18-6-amd64 kernel, PostgreSQL 8.3.4, and DRBD 8.0.13. > > During a failed state, pg_stat_activity will show hundreds of statements > pending. query_start will show the statements arriving at a normal rate (a > few per second), but clearly they never complete. The bulk of these > statement are a simple select that starts each web session, a statement that > generally completes in tenths of milliseconds. Restarting postgres restores > normal operation, at the loss of all chance of figuring out what was wrong.
What does pg_locks say during this time? Specifically about locks that aren't granted? -- Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-sql
