My PG server is still going down. After spending the weekend doing a CLUSTER of my largest table (it's a RAID 1 system with SATA hard disks and 4 GB memory, mostly devoted to PG) I still have this issue. When I do a "top" command, 99% of the CPU and about 15% of the memory is being taken by PG. When I press a "c" in the top UI, I see that "postmaster" is doing some "CLUSTER". However, I don't do any more clustering. The only automatic setting I can think of are autovacuum. So, question: to the degree that my system allows for performance, what steps can I take to find out what's happening? I see some things mentioned: I/O, vacuum settings, pg_stats, pg_activity -- is there a simple guide somewhere which shows me step by step what to do? Google hasn't been much help. "Postgresql performance tunings" brings a lot of esoteric articles. Thanks! -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general