Re: Changing the state of data checksums in a running cluster

From: Daniel Gustafsson <daniel(at)yesql(dot)se>
To: Heikki Linnakangas <hlinnaka(at)iki(dot)fi>
Cc: Tomas Vondra <tomas(at)vondra(dot)me>, Andres Freund <andres(at)anarazel(dot)de>, Bernd Helmle <mailings(at)oopsware(dot)de>, Michael Paquier <michael(at)paquier(dot)xyz>, Michael Banck <mbanck(at)gmx(dot)net>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Changing the state of data checksums in a running cluster
Date: 2026-04-04 00:35:31
Message-ID: 92F25C14-801E-4198-994D-D83E31FEB0D8@yesql.se
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> On 4 Apr 2026, at 00:59, Daniel Gustafsson <daniel(at)yesql(dot)se> wrote:
>
>> On 3 Apr 2026, at 23:46, Daniel Gustafsson <daniel(at)yesql(dot)se> wrote:
>>
>> After many more runs on CI I ended up pushing this version, and I see BF
>> members being angry due the test not waiting for the launcher to exit. I am
>> working on a fix right now.
>
> 0036232ba8f seems to have made the failing animals slightly happier, I will
> continue to monitor the buildfarm for other fallout.

The intermittent failure on kestrel implies timing similar to the one fixed in
0036232ba8fb28, a tentative fix is to make it part of waiting for an endstate
(on or off) to make sure the cluster is always in the right state for new
operations. Right now kestrel is the one which has been flapping, I'm waiting
a bit to see if more will follow and give further clues.

--
Daniel Gustafsson

Attachment Content-Type Size
0001-Wait-for-launcher-exit-in-enable-disable-checksum-te.patch application/octet-stream 3.2 KB

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