Received: from malur.postgresql.org ([217.196.149.56])
	by arkaria.postgresql.org with esmtps  (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
	(Exim 4.94.2)
	(envelope-from <pgsql-hackers-owner+archive@lists.postgresql.org>)
	id 1u4uMV-009CUP-Hx
	for pgsql-hackers@arkaria.postgresql.org; Wed, 16 Apr 2025 04:26:59 +0000
Received: from localhost ([127.0.0.1] helo=malur.postgresql.org)
	by malur.postgresql.org with esmtp (Exim 4.94.2)
	(envelope-from <pgsql-hackers-owner+archive@lists.postgresql.org>)
	id 1u4uMT-005s8h-Il
	for pgsql-hackers@arkaria.postgresql.org; Wed, 16 Apr 2025 04:26:58 +0000
Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29])
	by malur.postgresql.org with esmtps  (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
	(Exim 4.94.2)
	(envelope-from <tgl@sss.pgh.pa.us>)
	id 1u4uMT-005s8Z-8q
	for pgsql-hackers@lists.postgresql.org; Wed, 16 Apr 2025 04:26:58 +0000
Received: from sss.pgh.pa.us ([68.162.161.243])
	by magus.postgresql.org with esmtps  (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
	(Exim 4.96)
	(envelope-from <tgl@sss.pgh.pa.us>)
	id 1u4uMQ-000KcM-37
	for pgsql-hackers@lists.postgresql.org;
	Wed, 16 Apr 2025 04:26:57 +0000
Received: from sss1.sss.pgh.pa.us (localhost [127.0.0.1])
	by sss.pgh.pa.us (8.15.2/8.15.2) with ESMTP id 53G4QrmX1832514;
	Wed, 16 Apr 2025 00:26:53 -0400
From: Tom Lane <tgl@sss.pgh.pa.us>
To: Andrey Borodin <x4mmm@yandex-team.ru>
cc: Konstantin Osipov <kostja.osipov@gmail.com>,
        Greg Sabino Mullane <htamfids@gmail.com>,
        Nikolay Samokhvalov <nik@postgres.ai>,
        pgsql-hackers@lists.postgresql.org
Subject: Re: Built-in Raft replication
In-reply-to: <20FB597F-641F-48F8-8428-D8DDBA802D58@yandex-team.ru>
References: <Z_1Cq7JvabsFYjQo@ark> <CAKAnmmJxGHcQmzXqEQ-nppZjXyH7i5W_7Cz8JNMb2+6c5+D+og@mail.gmail.com> <CAM527d9+eGvdih1GxoPDJ2WYs6eitf39oNTxGxnCK1PgF=A8wg@mail.gmail.com> <1798838.1744759182@sss.pgh.pa.us> <20FB597F-641F-48F8-8428-D8DDBA802D58@yandex-team.ru>
Comments: In-reply-to Andrey Borodin <x4mmm@yandex-team.ru>
	message dated "Wed, 16 Apr 2025 09:07:28 +0500"
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-ID: <1832512.1744777613.1@sss.pgh.pa.us>
Content-Transfer-Encoding: quoted-printable
Date: Wed, 16 Apr 2025 00:26:53 -0400
Message-ID: <1832513.1744777613@sss.pgh.pa.us>
List-Id: <pgsql-hackers.lists.postgresql.org>
List-Help: <https://lists.postgresql.org/manage/>
List-Subscribe: <https://lists.postgresql.org/manage/>
List-Post: <mailto:pgsql-hackers@lists.postgresql.org>
List-Owner: <mailto:pgsql-hackers-owner@lists.postgresql.org>
List-Archive: <https://www.postgresql.org/list/pgsql-hackers>
Archived-At: <https://www.postgresql.org/message-id/1832513.1744777613%40sss.pgh.pa.us>
Precedence: bulk

Andrey Borodin <x4mmm@yandex-team.ru> writes:
> I think it's what Konstantin is proposing. To have our own Raft implemen=
tation, without dependencies.

Hmm, OK.  I thought that the proposal involved relying on some existing
code, but re-reading the thread that was said nowhere.  Still, that
moves it from a large project to a really large project :-(

I continue to think that it'd be best to try to implement it as
an extension, at least up till the point of finding show-stopping
reasons why it cannot be that.

			regards, tom lane