Horton

Re: Built-in Raft replication

Devrim Gündüz <devrim@gunduz.org>

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From: Devrim Gündüz <devrim@gunduz.org>
To: Jim Nasby <jnasby@upgrade.com>, Greg Sabino Mullane <htamfids@gmail.com>
Cc: Ashutosh Bapat <ashutosh.bapat.oss@gmail.com>, Andrey Borodin <x4mmm@yandex-team.ru>, Tom Lane <tgl@sss.pgh.pa.us>, Konstantin Osipov <kostja.osipov@gmail.com>, Nikolay Samokhvalov <nik@postgres.ai>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2025-04-23T17:01:05Z
Lists: pgsql-hackers 
Hi,

On Wed, 2025-04-23 at 11:48 -0500, Jim Nasby wrote:
> unless we added multiple WAL streams. That would allow for splitting
> WAL traffic across multiple devices as well as providing better
> support for configurations that don’t replicate the entire cluster.
> The current situation where delayed replication of a single table
> mandates retention of all the WAL for the entire cluster is less than
> ideal.

I think the problem is handling the stream of global objects. Having
separate stream for each database would be awesome as long as it can
deal with the "global stream".

Regards,
-- 
Devrim Gündüz
Open Source Solution Architect, PostgreSQL Major Contributor
BlueSky: @devrim.gunduz.org , @gunduz.org