On Fri, Mar 1, 2013 at 1:52 AM, Steven Crandell <steven.crandell@xxxxxxxxx> wrote: > As far as we were able to gather in the frantic moments of downtime, > hundreds of queries were hanging up while trying to COMMIT. This in turn > caused new queries backup as they waited for locks and so on. > > Given that we're dealing with new hardware and the fact that this still acts > a lot like a NUMA issue, are there other settings we should be adjusting to > deal with possible performance problems associated with NUMA? > > Does this sound like something else entirely? It does. I collected a number of kernel (and not only) tuning issues with short explanations to prevent it from affecting database behavior badly. Try to follow them: https://code.google.com/p/pgcookbook/wiki/Database_Server_Configuration -- Sergey Konoplev Database and Software Architect http://www.linkedin.com/in/grayhemp Phones: USA +1 415 867 9984 Russia, Moscow +7 901 903 0499 Russia, Krasnodar +7 988 888 1979 Skype: gray-hemp Jabber: gray.ru@xxxxxxxxx -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
