GNU bug report logs - #58204
guix system reconfigure hangs silently when substitute server is unreachable

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From: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: 58204 <at> debbugs.gnu.org
Subject: bug#58204: guix system reconfigure hangs silently when substitute server is unreachable
Date: Mon, 03 Oct 2022 21:46:52 -0400

Hi,

Ludovic Courtès <ludo <at> gnu.org> writes:

> Hi,
>
> Maxim Cournoyer <maxim.cournoyer <at> gmail.com> skribis:
>
>> While fixing up Berlin today, I had to use '--no-substitutes' on the
>> daemon started per 'info (guix)Chrooting', otherwise it'd hang up
>> without printing any of the warnings (totally silent).  Using strace, I
>> could see:
>>
>> guix substitute: warning: ci.guix.gnu.org: host not found: System error
>>
>> It'd be nice if these warnings were propagated all the way up so the
>> user would realize what is happening and take action.
>
> I think it’s supposed to be propagated.

It wasn't :-/.

> In the example above, I guess there were cached ci.guix.gnu.org narinfos
> for those substitutes and the “host not found” error arose when actually
> trying to substitute these, right?

I guess so!  It's not an easily situation to reproduce, so perhaps the
best we can do is assume this was the case and validate the
corresponding code path.

Thanks,

-- 
Maxim

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