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From: Laurenz Albe <[email protected]>
To: Artem Gavrilov <[email protected]>
To: Michael Paquier <[email protected]>
Cc: [email protected]
Subject: Re: Inaccurate statement about log shipping replication mode
Date: Tue, 02 Sep 2025 09:34:20 +0200
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAFPkQKyGw+dnWZQM6QsqXWY_czqvvwMvF9Qfb4x916ZzHiRHeA@mail.gmail.com>
References: <[email protected]>
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	<CAFPkQKyGw+dnWZQM6QsqXWY_czqvvwMvF9Qfb4x916ZzHiRHeA@mail.gmail.com>

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

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