GNU bug report logs - #76811
[PATCH] services: nginx: Replace invoke with spawn-command.

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Message #8 received at 76811 <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: Christopher Baines <mail <at> cbaines.net>
Cc: 76811 <at> debbugs.gnu.org
Subject: Re: [bug#76811] [PATCH] services: nginx: Replace invoke with
 spawn-command.
Date: Fri, 07 Mar 2025 14:56:03 +0100

Christopher Baines <mail <at> cbaines.net> skribis:

> I'm not sure where invoke is coming from here, but it could be from (guix
> build utils), that uses system* which uses waitpid, which might cause problems
> with recent versions of the shepherd?
>
> At least I'm seeing issues on multiple machines where attempting to restart
> the nginx service sometimes causes the shepherd to hang.
>
> * gnu/services/web.scm (nginx-shepherd-service): Replace invoke with
> spawn-command.
>
> Change-Id: Ie9ce4be9a4df121465b28148612b4fbc45fb5126

Hi!  ‘invoke’ uses ‘system*’, which is an alias for ‘spawn-command’ (see
‘replace-core-bindings!’ in ‘shepherd.scm’) so the only effect of this
patch is that errors from “nginx -c nginx.conf …” would be ignored.

I think we need a reproducer for the hang so we can pinpoint the
problem because it’s a pretty serious bug!

Ludo’.

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