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Subject: Re: 17.8 standby crashes during WAL replay from 17.5 primary: "could
 not access status of transaction"
From: Andrey Borodin <x4mmm@yandex-team.ru>
In-Reply-To: <FC778C81-C310-4F9B-99EC-920EAF853F8C@yandex-team.ru>
Date: Sat, 14 Feb 2026 22:41:43 +0500
Cc: Sebastian Webber <sebastian@swebber.me>,
 pgsql-bugs@lists.postgresql.org,
 Andrey Borodin <amborodin@acm.org>,
 =?utf-8?Q?=C3=81lvaro_Herrera?= <alvherre@kurilemu.de>,
 Dmitry Yurichev <dsy.075@yandex.ru>,
 Chao Li <li.evan.chao@gmail.com>,
 Ivan Bykov <i.bykov@modernsys.ru>,
 Kirill Reshke <reshkekirill@gmail.com>
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To: Heikki Linnakangas <hlinnaka@iki.fi>
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> On 14 Feb 2026, at 21:18, Andrey Borodin <x4mmm@yandex-team.ru> wrote:
>=20
> Perhaps, we also can bump latest_page_number forward?
This is not a good idea, we don't want "most accurate =
latest_page_number", we need precise number at any point after =
StartupMultiXact().

Wiping write by XLOG_MULTIXACT_TRUNCATE_ID seems correct to me =
everywhere 14-18.

I'd also suggest updating comment:

* this is not critical data, since we use it only to avoid swapping out
* the latest page.

It's absolutely critical now.


Best regards, Andrey Borodin.=