Re: Add doc advice about systemd RemoveIPC

From: Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>
To: Magnus Hagander <magnus(at)hagander(dot)net>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Add doc advice about systemd RemoveIPC
Date: 2017-02-15 15:56:25
Message-ID: 88f5c2c2-fada-d436-a8d4-7f47fcd7a50f@2ndquadrant.com
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On 2/14/17 11:49 AM, Magnus Hagander wrote:
> + <para>
> + If <productname>systemd</productname> is in use, some care must be
> taken
> + that IPC resources (shared memory and semaphores) are not prematurely
> + removed by the operating system. This is especially of concern when
> + installing PostgreSQL from source. Users of distribution packages of
> + PostgreSQL are less likely to be affected.
> + </para>
>
> I would add "are less likely to be affected as the postgres user is
> normally created as a system user" or something like that -- to indicate
> *why* they are less likely to be affected (and it also tells people that
> if they change the user, then they might become affected again).

Committed with that addition, thanks!

--
Peter Eisentraut http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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