[GENERAL] Need help in tuning
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@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
Re: [GENERAL] Need help in tuning
Phoenix Kiula wrote 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. SELECT * FROM pg_stat_activity; This will tell you what the server thinks it is doing. David J. -- View this message in context: http://postgresql.1045698.n5.nabble.com/Need-help-in-tuning-tp5813983p5813987.html Sent from the PostgreSQL - general mailing list archive at Nabble.com. -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
