From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?UTF-8?Q?Court=C3=A8s?=)
Subject: bug#22078: failed builds due to exceeding max-silent-time not marked
	as failed in db
Date: Mon, 14 Dec 2015 00:11:23 +0100
Message-ID: <87a8peuep0.fsf@gnu.org>
References: <565F6A9B.9050406@gmx.net> <56621663.4080007@gmx.net>
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In-Reply-To: <56621663.4080007@gmx.net> (Florian Paul Schmidt's message of
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To: Florian Paul Schmidt <mista.tapas@gmx.net>
Cc: 22078@debbugs.gnu.org

Florian Paul Schmidt <mista.tapas@gmx.net> skribis:

> Attached is a first stab at fixing this. There are additional options
> to guix-daemons now:
>
>       --cache-failures       cache build failures
>       --cache-hook-failures  cache build failures due to hook failures
> (depends
>                              on cache-failures)
>       --cache-timeout-failures   cache build failures due to timeouts
> (depends
>                              on cache-failures)

OK.  I=E2=80=99m unsure whether it makes sense to cache failures due to tim=
eout
because, by definition, they=E2=80=99re non-deterministic.

Another problem is that clients can choose what the timeout is (both
max-silent-time and absolute max-time), so it=E2=80=99d be easy for a clien=
t to
force a timeout failure; on a multi-user system, that would amount to a
DoS attack.

I=E2=80=99m not sure how to address these issues, so I=E2=80=99m rather in =
favor of the
status quo.

WDYT?

Thanks,
Ludo=E2=80=99.