Re: Get rid of WALBufMappingLock

From: Alexander Korotkov <aekorotkov(at)gmail(dot)com>
To: Álvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>
Cc: Michael Paquier <michael(at)paquier(dot)xyz>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Pavel Borisov <pashkin(dot)elfe(at)gmail(dot)com>, Victor Yegorov <vyegorov(at)gmail(dot)com>, Yura Sokolov <y(dot)sokolov(at)postgrespro(dot)ru>, "pgsql-hackers(at)lists(dot)postgresql(dot)org" <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Andres Freund <andres(at)anarazel(dot)de>
Subject: Re: Get rid of WALBufMappingLock
Date: 2025-03-02 11:58:36
Message-ID: CAPpHfdsWd1b7ENyiJZYhhp2_vTCRQm=2np3iDdqA=LmeXUP+jQ@mail.gmail.com
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On Fri, Feb 28, 2025 at 3:13 PM Álvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> wrote:
> On 2025-Feb-28, Michael Paquier wrote:
>
> > Saying that, I have also done similar tests with your v12 for a couple
> > of hours and this looks stable under installcheck-world. I can see
> > that you've reworked quite a bit the surroundings of InitializedFrom
> > in this one. If you apply that once again at some point, the
> > buildfarm will be judge in the long-term, but I am rather confident by
> > saying that the situation looks better here, at least.
>
> Heh, no amount of testing can prove lack of bugs; but for sure "it looks
> different now, so it must be correct" must be the weakest proof of
> correctness I've heard of!

Michael just volunteered to help Yura and me with testing. He wan't
intended to be reviewer. And he reported that tests looks much more
stable now. I think he is absolutely correct with this.

------
Regards,
Alexander Korotkov
Supabase

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