Re: Control flow in logical replication walsender

From: Christophe Pettus <xof(at)thebuild(dot)com>
To: Ashutosh Bapat <ashutosh(dot)bapat(dot)oss(at)gmail(dot)com>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Control flow in logical replication walsender
Date: 2024-05-06 18:29:39
Message-ID: C5B8E95B-9204-4F18-B2CE-AC2BFF1C0068@thebuild.com
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Thank you for the reply!

> On May 1, 2024, at 02:18, Ashutosh Bapat <ashutosh(dot)bapat(dot)oss(at)gmail(dot)com> wrote:
> Is there a large transaction which is failing to be replicated repeatedly - timeouts, crashes on upstream or downstream?

AFAIK, no, although I am doing this somewhat by remote control (I don't have direct access to the failing system). This did bring up one other question, though:

Are subtransactions written to their own individual reorder buffers (and thus potentially spill files), or are they appended to the topmost transaction's reorder buffer?

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