| From: | Michael Lewis <mlewis(at)entrata(dot)com> |
|---|---|
| To: | Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com> |
| Cc: | Justin King <kingpin867(at)gmail(dot)com>, pgsql-general <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: Fwd: PG12 autovac issues |
| Date: | 2020-03-18 18:40:03 |
| Message-ID: | CAHOFxGoDBxRfjm04K+qNH4sifrTaBM=_xQY8jA7AJjUgsvCurw@mail.gmail.com |
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| Lists: | pgsql-admin pgsql-general |
Do you have default fillfactor set on this table? If not, I would wonder if
reducing it to 50% or even 20% would allow many more HOT updates that would
reduce bloat.
Also, is there any period of lower activity on your system that you could
schedule a vacuum freeze for daily or weekly? I believe having frozen pages
would also mean all the autovacuums would be able to skip more pages and
therefore be faster.
>> autovacuum_vacuum_cost_delay = 20
This was changed to 2ms in PG12. You should reduce that most likely.
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