From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mark H Weaver <mhw@netris.org>
Subject: bug#36754: SSH connections to hydra-slave{1, 2, 3} fail during builds
Date: Wed, 24 Jul 2019 07:09:38 -0400
Message-ID: <87ef2fpu2a.fsf@netris.org>
References: <87o91n3ps0.fsf@netris.org> <87o91n3ps0.fsf@netris.org>
 <87zhl656xk.fsf@netris.org> <87pnm04s21.fsf@devup.no>
 <87ef2gr6z3.fsf@netris.org> <878ssor680.fsf@netris.org>
 <87lfwo1lz0.fsf@gnu.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
Return-path: <bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:470:142:3::10]:50634)
 by lists.gnu.org with esmtp (Exim 4.86_2)
 (envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1hqFCh-0002d8-HL
 for bug-guix@gnu.org; Wed, 24 Jul 2019 07:13:04 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
 (envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1hqFCg-0002DY-Ct
 for bug-guix@gnu.org; Wed, 24 Jul 2019 07:13:03 -0400
Received: from debbugs.gnu.org ([209.51.188.43]:55430)
 by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16)
 (Exim 4.71) (envelope-from <Debian-debbugs@debbugs.gnu.org>)
 id 1hqFCg-0002D3-8v
 for bug-guix@gnu.org; Wed, 24 Jul 2019 07:13:02 -0400
Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2)
 (envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1hqFCg-0008E5-3l
 for bug-guix@gnu.org; Wed, 24 Jul 2019 07:13:02 -0400
Sender: "Debbugs-submit" <debbugs-submit-bounces@debbugs.gnu.org>
Resent-Message-ID: <handler.36754.B36754.156396672531519@debbugs.gnu.org>
In-Reply-To: <87lfwo1lz0.fsf@gnu.org>
List-Id: Bug reports for GNU Guix <bug-guix.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/bug-guix>,
 <mailto:bug-guix-request@gnu.org?subject=unsubscribe>
List-Archive: <https://lists.gnu.org/archive/html/bug-guix>
List-Post: <mailto:bug-guix@gnu.org>
List-Help: <mailto:bug-guix-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/bug-guix>,
 <mailto:bug-guix-request@gnu.org?subject=subscribe>
Errors-To: bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org
Sender: "bug-Guix" <bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org>
To: Ludovic =?UTF-8?Q?Court=C3=A8s?= <ludo@gnu.org>
Cc: 36754@debbugs.gnu.org

Hi Ludovic,

Ludovic Court=C3=A8s <ludo@gnu.org> wrote:
> I noticed that connections to the machines were unstable (using
> OpenSSH=E2=80=99s client).  That is, the connection would eventually =E2=
=80=9Chang=E2=80=9D,
> apparently several times a day.
>
> Currently we have an SSH tunnel set up on berlin to connect to each of
> these machines via overdrive1.guixsd.org.  This setup proved to be
> robust in the past (we used it to connect to another build machine), so
> I suspect something=E2=80=99s wrong on =E2=80=9Cyour=E2=80=9D end of the =
network.  It=E2=80=99s hard to
> tell exactly what, though.
>
> Ideas?

Okay, I'll look into it.  I'm very busy with something else for the next
couple of days, but I'll try to get to it in the next week.

> If it=E2=80=99s causing build failures, I=E2=80=99m afraid we=E2=80=99ll =
have to comment out
> those machines from berlin=E2=80=99s machines.scm until we=E2=80=99ve fig=
ured it out.

Agreed.

     Thanks,
       Mark