Re: autovacuum just stop vacuuming specific table for 7 hours

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 <‪
pryzby(at)telsasoft(dot)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
>