Re: BUG: Cascading standby fails to reconnect after falling back to archive recovery

From: Álvaro Herrera <alvherre(at)kurilemu(dot)de>
To: Marco Nenciarini <marco(dot)nenciarini(at)enterprisedb(dot)com>
Cc: Xuneng Zhou <xunengzhou(at)gmail(dot)com>, Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: BUG: Cascading standby fails to reconnect after falling back to archive recovery
Date: 2026-07-29 15:46:40
Message-ID: amoc5_wXlObTVHuv@alvherre.pgsql
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On 2026-Apr-27, Marco Nenciarini wrote:

> v7 patches attached. No code changes from v6, just rebased on
> current master to remove minor offset, and the backpatch file is
> renamed with a "nocfbot-" prefix so the commitfest bot picks up
> only the master patch.

I pushed this after some editorial tinkering.

There were rather a lot of backpatching landmines here.

One thing I didn't concern myself with, was ABI compatibility in the 19
branch. I made the patch identical to master, which means we add a new
argument to walrcv_identify_system(). We don't have
.abi-compliance-history yet, which means it's fine.

--
Álvaro Herrera 48°01'N 7°57'E — https://www.EnterpriseDB.com/

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