hi We have an installation of Postgres 8.1.2 (32bit on Solaris 9) with a DB size of about 250GB on disk. The DB is subject to fair amount of inserts, deletes and updates per day. Running VACUUM VERBOSE tells me that I should allocate around 20M pages to FSM (max_fsm_pages)! This looks like a really large amount to me. Has anyone gone ever that high with max_fsm_pages? The other question is why such a large number is required in the first place. Auto vacuum is enabled. Here are the settings: autovacuum = true autovacuum_naptime = 900 autovacuum_vacuum_threshold = 2000 autovacuum_analyze_threshold = 1000 autovacuum_vacuum_scale_factor = 0.25 autovacuum_analyze_scale_factor = 0.18 autovacuum_vacuum_cost_delay = 150 autovacuum_vacuum_cost_limit = 120 A manual vacuum takes very long (around 4 days), so maybe the cost delay and limit or too high. Any suggestions anyone? Cheers, -- Tom. ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend
