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Re: Assertion failure in SnapBuildInitialSnapshot()

Amit Kapila <amit.kapila16@gmail.com>

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From: Amit Kapila <amit.kapila16@gmail.com>
To: Masahiko Sawada <sawada.mshk@gmail.com>, Andres Freund <andres@anarazel.de>
Cc: "Hayato Kuroda (Fujitsu)" <kuroda.hayato@fujitsu.com>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>, Thomas Munro <thomas.munro@gmail.com>
Date: 2023-02-01T05:53:57Z
Lists: pgsql-hackers 
On Tue, Jan 31, 2023 at 6:08 PM Masahiko Sawada <sawada.mshk@gmail.com> wrote:
>
> Attached updated patches.
>

Thanks, Andres, others, do you see a better way to fix this problem? I
have reproduced it manually and the steps are shared at [1] and
Sawada-San also reproduced it, see [2].

[1] - https://www.postgresql.org/message-id/CAA4eK1KDFeh%3DZbvSWPx%3Dir2QOXBxJbH0K8YqifDtG3xJENLR%2Bw%40mail.gmail.com
[2] - https://www.postgresql.org/message-id/CAD21AoDKJBB6p4X-%2B057Vz44Xyc-zDFbWJ%2Bg9FL6qAF5PC2iFg%40mail.gmail.com

-- 
With Regards,
Amit Kapila.

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Fix a race condition in updating procArray->replication_slot_xmin.

  2. Don't retreat slot's confirmed_flush LSN.

  3. Add additional checks while creating the initial decoding snapshot.