MIME-Version: 1.0
References: <20210423204306.5osfpkt2ggaedyvy@alap3.anarazel.de>
 <CAP4vRV5gEHFLB7NwOE6_dyHAeVfkvqF8Z_g5GaCQZNgBAE0Frw@mail.gmail.com> <20210611011850.detxnd7bnffg3daz@alap3.anarazel.de>
In-Reply-To: <20210611011850.detxnd7bnffg3daz@alap3.anarazel.de>
From: Masahiko Sawada <sawada.mshk@gmail.com>
Date: Tue, 1 Feb 2022 11:58:55 +0900
Message-ID: <CAD21AoC-xMv1pModWvUQ1g1qByxMmu6yLghsKVb-R35rmShiwA@mail.gmail.com>
Subject: Re: Testing autovacuum wraparound (including failsafe)
To: Andres Freund <andres@anarazel.de>
Cc: Anastasia Lubennikova <lubennikovaav@gmail.com>, pgsql-hackers <pgsql-hackers@postgresql.org>, 
	Peter Geoghegan <pg@bowt.ie>
Content-Type: multipart/mixed; boundary="0000000000002749cb05d6ec1766"
Archived-At: <https://www.postgresql.org/message-id/CAD21AoC-xMv1pModWvUQ1g1qByxMmu6yLghsKVb-R35rmShiwA%40mail.gmail.com>
Precedence: bulk

--0000000000002749cb05d6ec1766
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

On Fri, Jun 11, 2021 at 10:19 AM Andres Freund <andres@anarazel.de> wrote:
>
> Hi,
>
> On 2021-06-10 16:42:01 +0300, Anastasia Lubennikova wrote:
> > Cool. Thank you for working on that!
> > Could you please share a WIP patch for the $subj? I'd be happy to help =
with
> > it.
>
> I've attached the current WIP state, which hasn't evolved much since
> this message... I put the test in src/backend/access/heap/t/001_emergency=
_vacuum.pl
> but I'm not sure that's the best place. But I didn't think
> src/test/recovery is great either.
>

Thank you for sharing the WIP patch.

Regarding point (1) you mentioned (StartupSUBTRANS() takes a long time
for zeroing out all pages), how about using single-user mode instead
of preparing the transaction? That is, after pg_resetwal we check the
ages of datfrozenxid by executing a query in single-user mode. That
way, we don=E2=80=99t need to worry about autovacuum concurrently running
while checking the ages of frozenxids. I=E2=80=99ve attached a PoC patch th=
at
does the scenario like:

1. start cluster with autovacuum=3Doff and create tables with a few data
and make garbage on them
2. stop cluster and do pg_resetwal
3. start cluster in single-user mode
4. check age(datfrozenxid)
5. stop cluster
6. start cluster and wait for autovacuums to increase template0,
template1, and postgres datfrozenxids

I put new tests in src/test/module/heap since we already have tests
for brin in src/test/module/brin.

I think that tap test facility to run queries in single-user mode will
also be helpful for testing a new vacuum option/command that is
intended to use in emergency cases and proposed here[1].

Regards,

[1]  https://www.postgresql.org/message-id/flat/20220128012842.GZ23027%40te=
lsasoft.com#b76c13554f90d1c8bb5532d6f3e5cbf8


--
Masahiko Sawada
EDB:  https://www.enterprisedb.com/

--0000000000002749cb05d6ec1766
Content-Type: application/x-patch; 
	name="tap_tests_for_wraparound_emregency.patch"
Content-Disposition: attachment; 
	filename="tap_tests_for_wraparound_emregency.patch"
Content-Transfer-Encoding: base64
Content-ID: <f_kz3iysoy0>
X-Attachment-Id: f_kz3iysoy0
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--0000000000002749cb05d6ec1766--