The PostgreSQL version is 9.6. I dont have access to the machine right now so I will check tomorrow. Basically those values should be the same because they are updated by the autovacuum process right ? Any idea what else to check ? During the week last_autovacuum (in pg_stat_all_tables) were updated every hour. Only during those problematic 7 hours it wasnt updated.
בתאריך יום ד׳, 6 במרץ 2019 ב-19:05 מאת Justin Pryzby < pry...@telsasoft.com>: > On Wed, Mar 06, 2019 at 06:47:21PM +0200, Mariel Cherkassky wrote: > > Those settings helped but the table still grey very much. I wrote a > script > > that monitored some metadata about the table (pg_stat_all_tables,count(*) > > from orig and toasted table). I let the system monitor the table for a > week > > and I found out the next info : > > > Autovacuum was running great during the whole week and whenever it > reached > > 10k records in the toasted table it started vacuuming the table. > *However, > > The db grew dramatically during a period of 7 hours in a specific day. In > > those 7 hours the table contained more then 10k (and kept increasing) but > > the autovacuum didnt vacuum the table*. I saw that during those 7 hours > > autovacuum didnt run and as a result of that the table grew to its max > > size(the current size). > > Does pg_stat_all_tables show that the table ought to have been vacuumed ? > > SELECT * FROM pg_stat_sys_tables WHERE > relid='pg_toast.pg_toast_123456'::regclass; > > Compare with relpages, reltuple FROM pg_class > > What postgres version ? > > Justin >
