GNU bug report logs - #26008
‘guix offload test’ provides insufficient details upon failure

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: ludo <at> gnu.org (Ludovic Courtès)
Subject: bug#26008: closed (Re: bug#26008: ‘guix
 offload test’ provides insufficient details upon
 failure)
Date: Sat, 13 Jan 2018 14:12:02 +0000

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Your bug report

#26008: ‘guix offload test’ provides insufficient details upon failure

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 26008 <at> debbugs.gnu.org.

-- 
26008: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=26008
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: ludo <at> gnu.org (Ludovic Courtès)
To: 26008-done <at> debbugs.gnu.org
Subject: Re: bug#26008: ‘guix offload test’ provides insufficient details upon failure
Date: Sat, 13 Jan 2018 15:11:15 +0100

Hi,

ludo <at> gnu.org (Ludovic Courtès) skribis:

> on [2017-03-06] at 10:52 Ludovic Courtès writes:
>
>> Myles English <mylesenglish <at> gmail.com> skribis:
>>
>>> Two hosts, setup the same as far as I can see, behave differently when
>>> trying to offload builds, any idea how I can get more information on
>>> what the #<unspecified> might indicate?  Looking at
>>> guix/scripts/offload.scm:551 suggests the result is not a string.
>>>
>>> $ guix offload test
>>> guix offload: testing 2 build machines defined in '/etc/guix/machines.scm'...
>>> guix offload: 'host1.mydomain.co.uk' is running guile (GNU Guile) 2.0.13
>>> guix offload: 'host2.mydomain.co.uk' is running guile (GNU Guile) 2.0.13
>>> guix offload: Guix is usable on 'host1.mydomain.co.uk' (test returned "/gnu/store/883yjkl46dxw9mzykykmbs0yzwyxm17z-test")
>>> guix offload: error: failed to use Guix module on 'host2.mydomain.co.uk'
>>> (test returned #<unspecified>)
>>
>> What you see here most likely means that host2 threw an exception while
>> executing this code:
>>
>>   http://git.savannah.gnu.org/cgit/guix.git/tree/guix/scripts/offload.scm#n543
>>
>> The reason could be:
>>
>>   1. That the (guix …) modules could not be found in the search path
>>      (your tests suggest this is not the case);
>>
>>   2. That an exception was thrown, for instance because the ‘with-store’
>>      form failed to connect to the daemon on that machine (is the daemon
>>      running on that machine? Is it listening on
>>      /var/guix/daemon-socket/socket and not some other place?).
>
> Yes, that was probably the problem.  I have since updated the host
> systems, rebooted, restarted the daemons and now it works, thanks.
>
>> We should definitely improve that and provide details about the
>> exception, at least.
>
> Yes, I agree, because 'guix offload test' should provide useful details
> when it fails and not just when it succeeds.

Commit 4eb0f9ae05a9bf20fb91c49b39bebc687265c5e5 improves that.

Ludo’.

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From: ludo <at> gnu.org (Ludovic Courtès)
To: bug-guix <at> gnu.org
Subject: ‘guix offload test’
 provides insufficient details upon failure
Date: Tue, 07 Mar 2017 12:01:11 +0100

[Message part 4 (text/plain, inline)]

See message below.

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From: Myles English <mylesenglish <at> gmail.com>
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: help-guix <help-guix <at> gnu.org>
Subject: Re: guix offload, (test returned #<unspecified>)
Date: Mon, 06 Mar 2017 23:23:01 +0000

Hi Ludo',

on [2017-03-06] at 10:52 Ludovic Courtès writes:

> Myles English <mylesenglish <at> gmail.com> skribis:
>
>> Two hosts, setup the same as far as I can see, behave differently when
>> trying to offload builds, any idea how I can get more information on
>> what the #<unspecified> might indicate?  Looking at
>> guix/scripts/offload.scm:551 suggests the result is not a string.
>>
>> $ guix offload test
>> guix offload: testing 2 build machines defined in '/etc/guix/machines.scm'...
>> guix offload: 'host1.mydomain.co.uk' is running guile (GNU Guile) 2.0.13
>> guix offload: 'host2.mydomain.co.uk' is running guile (GNU Guile) 2.0.13
>> guix offload: Guix is usable on 'host1.mydomain.co.uk' (test returned "/gnu/store/883yjkl46dxw9mzykykmbs0yzwyxm17z-test")
>> guix offload: error: failed to use Guix module on 'host2.mydomain.co.uk'
>> (test returned #<unspecified>)
>
> What you see here most likely means that host2 threw an exception while
> executing this code:
>
>   http://git.savannah.gnu.org/cgit/guix.git/tree/guix/scripts/offload.scm#n543
>
> The reason could be:
>
>   1. That the (guix …) modules could not be found in the search path
>      (your tests suggest this is not the case);
>
>   2. That an exception was thrown, for instance because the ‘with-store’
>      form failed to connect to the daemon on that machine (is the daemon
>      running on that machine? Is it listening on
>      /var/guix/daemon-socket/socket and not some other place?).

Yes, that was probably the problem.  I have since updated the host
systems, rebooted, restarted the daemons and now it works, thanks.

> We should definitely improve that and provide details about the
> exception, at least.

Yes, I agree, because 'guix offload test' should provide useful details
when it fails and not just when it succeeds.

Myles

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