Re: Frequent "pg_ctl status" removing(?) semaphores (unlikely)

From: Michael Paquier <michael(dot)paquier(at)gmail(dot)com>
To: raf <raf(at)raf(dot)org>
Cc: PostgreSQL mailing lists <pgsql-general(at)postgresql(dot)org>
Subject: Re: Frequent "pg_ctl status" removing(?) semaphores (unlikely)
Date: 2016-09-27 05:44:40
Message-ID: CAB7nPqRgcN-YzmqNKR-9+Fph-hiD-52ZPSyzA-THJ9kOVHi+BA@mail.gmail.com
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On Tue, Sep 27, 2016 at 2:13 PM, raf <raf(at)raf(dot)org> wrote:
> So, my qestion is, is it possible that "pg_ctl status" could be
> removing postgres's semaphores and can I stop it? It seems
> extremely unlikely. So, if it isn't, what else could it be?
> Systemd perhaps? It's been known to kill screen/tmux/nohup
> processes when a user logs out in its keenness to clean up but
> that may be clutching at straws.

systemd sometimes has fun removing semaphores. See here for example:
https://www.postgresql.org/message-id/CAK7tEys9-O4BTERbs3Xuk2BfFNNd55u2sM9j5R2Fi7v6BHjrQw@mail.gmail.com
--
Michael

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