From: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Chris Kim <christopherkim22@gmail.com>
Cc: Laurenz Albe <laurenz.albe@cybertec.at>
Cc: pgsql-admin@lists.postgresql.org
Subject: Re: Autovacuum/Analyze Doesn't seem to be running properly
Date: Wed, 4 Mar 2020 17:52:56 -0300
Message-ID: <20200304205256.GA22843@alvherre.pgsql> (raw)
In-Reply-To: <CAAEyfN765PRpc9Uf9gUjZZUdGUhqzG74t9knKJj+ozHH8yh+1Q@mail.gmail.com>
On 2020-Mar-04, Chris Kim wrote:
> In my testing it looks like pg_stat_reset was ran, but I haven't been able
> to verify this from my logs.
>
> Is there another way the stats could get reset?
Yes, a crash/restart does that.
> Does autovacuum use the stats from pg_stat_user_table meaning if there 50
> live tuples and 1000 dead tuples, but then the stats are reset, those dead
> tuples would never get cleaned up until there was new activity on that
> table?
That's correct.
--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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Cc: alvherre@2ndquadrant.com, christopherkim22@gmail.com, laurenz.albe@cybertec.at, pgsql-admin@lists.postgresql.org
Subject: Re: Autovacuum/Analyze Doesn't seem to be running properly
In-Reply-To: <20200304205256.GA22843@alvherre.pgsql>
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