From: Alvaro Herrera <alvherre@alvh.no-ip.org>
To: Joshua D. Drake <jd@commandprompt.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Jonah H. Harris <jonah.harris@gmail.com>
Cc: Campbell, Lance <lance@uiuc.edu>
Cc: posgres support <pgsql-admin@postgresql.org>
Subject: Re: Enhancement request
Date: Sat, 1 Dec 2007 22:31:14 -0300
Message-ID: <20071202013114.GB11039@alvh.no-ip.org> (raw)
In-Reply-To: <20071201123029.5776b3c5@jd-laptop>
References: <B10E6810AC2A2F4EA7550D072CDE8760197E2C@SAB-FENWICK.sab.uiuc.edu>
<36e682920711301218m703b3c67s6f547fd7b9b60e7c@mail.gmail.com>
<7099.1196458205@sss.pgh.pa.us>
<36e682920711301332q1cce5db9qe44fb068fcd5608d@mail.gmail.com>
<7341.1196459304@sss.pgh.pa.us>
<20071130140005.18521c54@jd-laptop>
<20071130223402.GG3175@alvh.no-ip.org>
<20071201123029.5776b3c5@jd-laptop>
Joshua D. Drake escribió:
> On Fri, 30 Nov 2007 19:34:02 -0300
> Alvaro Herrera <alvherre@alvh.no-ip.org> wrote:
>
> > Joshua D. Drake escribió:
> >
> > > The multi-worker autovacuum is a great new addition to help part of
> > > that problem (starvation) but it is not help against the other
> > > (resource consumption, specifically IO).
> >
> > Huh, autovac will consume exactly the same amount of I/O as a
> > user-induced vacuum, so I don't see your point.
>
> It can be determined "when" the I/O is used.
Future plans call for being able to change autovac parameters depending
on time of day, so you will be able to decide that using autovacuum too.
> > Remember, we're not adding VACUUM SCHEMA in 8.2 so it doesn't make any
> > sense to try to compare it against the old autovac. And you can bet
> > that in 8.4 autovac will have even more goodies.
>
> I assume you mean 8.3, but that is certainly a valid point.
No, I meant 8.4 --- the feature set of 8.3 is already set on stone. So
VACUUM SCHEMA has to compete with whatever we're able to do for the
release following that one.
--
Alvaro Herrera http://www.advogato.org/person/alvherre
"Entristecido, Wutra (canción de Las Barreras)
echa a Freyr a rodar
y a nosotros al mar"
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To: pgsql-admin@postgresql.org
Cc: alvherre@alvh.no-ip.org, jd@commandprompt.com, tgl@sss.pgh.pa.us, jonah.harris@gmail.com, lance@uiuc.edu
Subject: Re: Enhancement request
In-Reply-To: <20071202013114.GB11039@alvh.no-ip.org>
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