Message-ID: <93913aeb398b264ca0dc781095d36d6ad2d3be71.camel@cybertec.at>
Subject: Re: Inaccurate statement about log shipping replication mode
From: Laurenz Albe <laurenz.albe@cybertec.at>
To: Artem Gavrilov <artem.gavrilov@percona.com>, Michael Paquier
	 <michael@paquier.xyz>
Cc: pgsql-docs@lists.postgresql.org
Date: Tue, 02 Sep 2025 09:34:20 +0200
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On Mon, 2025-09-01 at 13:51 +0200, Artem Gavrilov wrote:
> As I understand in configuration `Master
> -> Upstream -> Downstream` replication between Master And Upstream
> still can be synchronous, while between Upstream and Downstream is't
> always async. Am I wrong here?

I don't quite understand.  Sure, you can have synchronous replication
between the master and upstream.  It is the "isn't always async" part
that confuses me.  Do you mean that WAL can reach downstream before
the master commits?  That is certainly the case.

Yours,
Laurenz Albe