| From: | Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | Justin Pryzby <pryzby(at)telsasoft(dot)com>, Masahiko Sawada <masahiko(dot)sawada(at)2ndquadrant(dot)com>, David Rowley <dgrowleyml(at)gmail(dot)com>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>, Darafei Komяpa Praliaskouski <me(at)komzpa(dot)net>, PostgreSQL Developers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Michael Banck <mbanck(at)gmx(dot)net> |
| Subject: | Re: Berserk Autovacuum (let's save next Mandrill) |
| Date: | 2020-03-18 19:55:30 |
| Message-ID: | 9865a51c95bc8dee27a3e0ced92b28233add63a6.camel@cybertec.at |
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| Lists: | pgsql-hackers |
On Tue, 2020-03-17 at 17:26 -0700, Andres Freund wrote:
> On 2020-03-17 01:14:02 +0100, Laurenz Albe wrote:
> > lazy_check_needs_freeze() is only called for an aggressive vacuum, which
> > this isn't.
>
> Hm? I mean some of these will be aggressive vacuums, because it's older
> than vacuum_freeze_table_age? And the lower age limit would make that
> potentially more painful, no?
You are right. I thought of autovacuum_freeze_max_age, but not of
vacuum_freeze_table_age.
Autovacuum configuration is so woefully complicated that it makes me
feel bad to propose two more parameters :^(
Yours,
Laurenz Albe
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