| From: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | Andrey Borodin <x4mmm(at)yandex-team(dot)ru>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: walsummarizer can get stuck when switching timelines |
| Date: | 2026-07-16 05:49:24 |
| Message-ID: | CAA4eK1+1TFdQbiuOsP+_=nTWwGZokHTtsw3mj4zf31bAv8onzg@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Wed, Jul 15, 2026 at 7:46 PM Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
>
> On Wed, Jul 15, 2026 at 4:52 AM Andrey Borodin <x4mmm(at)yandex-team(dot)ru> wrote:
> > I can reproduce it locally by adding an extra WAL switch on node1
> > before promoting node2. It can probably be made deterministic either by
> > polling pg_stat_archiver before relying on the segment (as
> > 025_stuck_on_old_timeline.pl does) or by setting archive_mode=always on
> > node2 (I would expect it to be a bit faster).
>
> archive_mode=always seems like the correct fix. Here's v2.
>
Thanks for the updated patch, it works for me.
--
With Regards,
Amit Kapila.
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