Re: Changing shared_buffers without restart

From: Dmitry Dolgov <9erthalion6(at)gmail(dot)com>
To: pgsql-hackers(at)postgresql(dot)org
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Ashutosh Bapat <ashutosh(dot)bapat(dot)oss(at)gmail(dot)com>
Subject: Re: Changing shared_buffers without restart
Date: 2025-02-27 08:28:22
Message-ID: t4f2ixx5qnkvwuuxkg52obw3kknead22bwaqkdfgrqfijwbebh@6nub3y4atngv
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> On Tue, Feb 25, 2025 at 10:52:05AM GMT, Dmitry Dolgov wrote:
> > On Fri, Oct 18, 2024 at 09:21:19PM GMT, Dmitry Dolgov wrote:
> > TL;DR A PoC for changing shared_buffers without PostgreSQL restart, via
> > changing shared memory mapping layout. Any feedback is appreciated.
>
> Hi,
>
> Here is a new version of the patch, which contains a proposal about how to
> coordinate shared memory resizing between backends. The rest is more or less
> the same, a feedback about coordination is appreciated. It's a lot to read, but
> the main difference is about:

Just one note, there are still couple of compilation warnings in the
code, which I haven't addressed yet. Those will go away in the next
version.

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