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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Maciej Jaros <eccenux@gmail.com>
Cc: Tomas Vondra <tomas@vondra.me>
Cc: David G. Johnston <david.g.johnston@gmail.com>
Cc: pgsql-bugs@lists.postgresql.org <pgsql-bugs@lists.postgresql.org>
Subject: Re: BUG #18675: Postgres is not realasing memory causing OOM
Date: Tue, 29 Oct 2024 12:13:52 -0400
Message-ID: <241665.1730218432@sss.pgh.pa.us> (raw)
In-Reply-To: <CAOn6LZqgcnXFAdkoxRUTnH5B0g_JN0EmCNERvRREpT0_ZCvBog@mail.gmail.com>
References: <18675-39a45505fb472bf0@postgresql.org>
	<CAKFQuwY=-O7-Bnq8PuAtH1TR=y=nmj3U+YqKEeemCM91=or3OA@mail.gmail.com>
	<60f459d7-9cfc-4417-8944-a44581edbe4d@gmail.com>
	<ac7d412b-dd3e-4c6f-afb6-80d2f11bf833@vondra.me>
	<CAOn6LZqgcnXFAdkoxRUTnH5B0g_JN0EmCNERvRREpT0_ZCvBog@mail.gmail.com>

Maciej Jaros <eccenux@gmail.com> writes:
> So, that comment led me to suggest adding some kind of process. I called it
> a garbage collector, but maybe David is right; maybe that’s not accurate.
> Anyway, that process, in my view, could try to actually release memory to
> the system to prevent the OOM killer from doing its bidding. Is that
> possible?

We do not even know what is causing your problem, let alone know a
way that one process could command another one to stop doing it.
So no, this suggestion is not helpful.

			regards, tom lane





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