Re: Introduce XID age and inactive timeout based replication slot invalidation

From: Michail Nikolaev <michail(dot)nikolaev(at)gmail(dot)com>
To: "Zhijie Hou (Fujitsu)" <houzj(dot)fnst(at)fujitsu(dot)com>
Cc: Nisha Moond <nisha(dot)moond412(at)gmail(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Peter Smith <smithpb2250(at)gmail(dot)com>, vignesh C <vignesh21(at)gmail(dot)com>, "Hayato Kuroda (Fujitsu)" <kuroda(dot)hayato(at)fujitsu(dot)com>, shveta malik <shveta(dot)malik(at)gmail(dot)com>, Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com>, Ajin Cherian <itsajin(at)gmail(dot)com>, Bertrand Drouvot <bertranddrouvot(dot)pg(at)gmail(dot)com>, Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>, Nathan Bossart <nathandbossart(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Introduce XID age and inactive timeout based replication slot invalidation
Date: 2024-12-26 13:56:50
Message-ID: CANtu0ohUvZ-nmLR7zXfTFS1S01Z9=MFBb4B=-=YmGzRkRg_R6Q@mail.gmail.com
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Hello, Hou!

> So, I think it's not a bug in the committed patch but an issue in the
testing
> venvironment. Besides, since we have not seen such failures on BF, I
think it
> may not be necessary to improve the testcases.

Thanks for your analysis!
Yes, probably WSL2/Windows interactions cause strange system clock moving.
It looks like it is a common issue with WSL2 [0].

[0]: https://github.com/microsoft/WSL/issues/10006

Best regards,
Mikhail.

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