RE: Random pg_upgrade test failure on drongo

From: "Hayato Kuroda (Fujitsu)" <kuroda(dot)hayato(at)fujitsu(dot)com>
To: "'pgsql-hackers(at)lists(dot)postgresql(dot)org'" <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Cc: "'andrew(at)dunslane(dot)net'" <andrew(at)dunslane(dot)net>, "Hayato Kuroda (Fujitsu)" <kuroda(dot)hayato(at)fujitsu(dot)com>
Subject: RE: Random pg_upgrade test failure on drongo
Date: 2023-11-16 05:12:02
Message-ID: TYAPR01MB58660AC594FC101ADB64267EF5B0A@TYAPR01MB5866.jpnprd01.prod.outlook.com
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Dear hackers,

> While tracking a buildfarm, I found that drongo failed the test
> pg_upgrade/003_logical_slots [1].
> A strange point is that the test passed in the next iteration. Currently I'm not
> sure the reason, but I will keep my eye for it and will investigate if it
> happens again.

This email just tells an update. We found that fairywren was also failed due to
the same reason [2]. It fails inconsistently, but there might be a bad thing on
windows. I'm now trying to reproduce with my colleagues to analyze more detail.
Also, working with Andrew for getting logs emitted during the upgrade.
I will continue to keep on my eye.

[2]: https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=fairywren&dt=2023-11-08%2010%3A22%3A45

Best Regards,
Hayato Kuroda
FUJITSU LIMITED

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