bug#33280: Guix weather does not error nicely with 502 errors from hydra

bug#33280: Guix weather does not error nicely with 502 errors from hydra

[swedebugia]

I did not change the default substitute-urls in 0.15

This is probably low priority.

sdb@komputilo ~$ guix weather
computing 7,850 package derivations for x86_64-linux...
looking for 8,167 store items on https://mirror.hydra.gnu.org...
guix weather: warning: while fetching 
'https://mirror.hydra.gnu.org/nix-cache-info': 502 ("Bad Gateway")
guix weather: warning: ignoring substitute server at 
'"https://mirror.hydra.gnu.org"'
https://mirror.hydra.gnu.org
   .0% substitutes available (0 out of 8,167)
   unknown substitute sizes
   0.0 MiB on disk (uncompressed)
   0.000 seconds per request (2.7 seconds in total)
   3,081.9 requests per second
   (continuous integration information unavailable)

We should omit everything after the first warning I think.

-- 
Cheers
Swedebugia

bug#33280: Guix weather does not error nicely with 502 errors from hydra

[Mark H Weaver]

swedebugia <swedebugia@riseup.net> writes:

> I did not change the default substitute-urls in 0.15
>
> This is probably low priority.
>
> sdb@komputilo ~$ guix weather
> computing 7,850 package derivations for x86_64-linux...
> looking for 8,167 store items on https://mirror.hydra.gnu.org...
> guix weather: warning: while fetching
> 'https://mirror.hydra.gnu.org/nix-cache-info': 502 ("Bad Gateway")
> guix weather: warning: ignoring substitute server at
> '"https://mirror.hydra.gnu.org"'
> https://mirror.hydra.gnu.org
>   .0% substitutes available (0 out of 8,167)
>   unknown substitute sizes
>   0.0 MiB on disk (uncompressed)
>   0.000 seconds per request (2.7 seconds in total)
>   3,081.9 requests per second
>   (continuous integration information unavailable)
>
> We should omit everything after the first warning I think.

At the time you wrote this, hydra.gnu.org was partially back up, but
with several of the important daemons not yet started.  I've since
started the daemons, so it might work now.

      Mark

bug#33280: Guix weather does not error nicely with 502 errors from hydra

[Ludovic Courtès]

Hi,

Mark H Weaver <mhw@netris.org> skribis:

> swedebugia <swedebugia@riseup.net> writes:
>
>> I did not change the default substitute-urls in 0.15
>>
>> This is probably low priority.
>>
>> sdb@komputilo ~$ guix weather
>> computing 7,850 package derivations for x86_64-linux...
>> looking for 8,167 store items on https://mirror.hydra.gnu.org...
>> guix weather: warning: while fetching
>> 'https://mirror.hydra.gnu.org/nix-cache-info': 502 ("Bad Gateway")
>> guix weather: warning: ignoring substitute server at
>> '"https://mirror.hydra.gnu.org"'
>> https://mirror.hydra.gnu.org
>>   .0% substitutes available (0 out of 8,167)
>>   unknown substitute sizes
>>   0.0 MiB on disk (uncompressed)
>>   0.000 seconds per request (2.7 seconds in total)
>>   3,081.9 requests per second
>>   (continuous integration information unavailable)
>>
>> We should omit everything after the first warning I think.
>
> At the time you wrote this, hydra.gnu.org was partially back up, but
> with several of the important daemons not yet started.  I've since
> started the daemons, so it might work now.

Also, I would argue that this behavior (printing a warning and ignoring
the faulty server) is good.  I can’t think of a better way to handle
this situation.

Thoughts?

Ludo’.

bug#33280: Guix weather does not error nicely with 502 errors from hydra

[swedebugia]

Hi

On 2018-11-06 15:23, Ludovic Courtès wrote:
> Hi,
>
> Mark H Weaver <mhw@netris.org> skribis:
>
>> swedebugia <swedebugia@riseup.net> writes:
>>
>>> I did not change the default substitute-urls in 0.15
>>>
>>> This is probably low priority.
>>>
>>> sdb@komputilo ~$ guix weather
>>> computing 7,850 package derivations for x86_64-linux...
>>> looking for 8,167 store items on https://mirror.hydra.gnu.org...
>>> guix weather: warning: while fetching
>>> 'https://mirror.hydra.gnu.org/nix-cache-info': 502 ("Bad Gateway")
>>> guix weather: warning: ignoring substitute server at
>>> '"https://mirror.hydra.gnu.org"'
>>> https://mirror.hydra.gnu.org
>>>    .0% substitutes available (0 out of 8,167)
>>>    unknown substitute sizes
>>>    0.0 MiB on disk (uncompressed)
>>>    0.000 seconds per request (2.7 seconds in total)
>>>    3,081.9 requests per second
>>>    (continuous integration information unavailable)
>>>
>>> We should omit everything after the first warning I think.
>> At the time you wrote this, hydra.gnu.org was partially back up, but
>> with several of the important daemons not yet started.  I've since
>> started the daemons, so it might work now.
> Also, I would argue that this behavior (printing a warning and ignoring
> the faulty server) is good.  I can’t think of a better way to handle
> this situation.
>
> Thoughts?

Thanks for taking your time on this.

This is also near or in the bikeshedding territory :p

1 thing that is wrong in the message above is the number of requests per 
second.

   3,081.9 requests per second

This cannot be right.

-- 
Cheers
Swedebugia

bug#33280: Guix weather does not error nicely with 502 errors from hydra

[Ludovic Courtès]

Hello,

swedebugia <swedebugia@riseup.net> skribis:

> 1 thing that is wrong in the message above is the number of requests
> per second.
>
>   3,081.9 requests per second
>
> This cannot be right.

Yeah I think that you get a throughput tends to +∞ when everything is
already available in ~/.cache/guix/substitute, and ‘guix weather’
doesn’t realize that.

But anyway, that’s a different bug, so I’m closing this one!  :-)

Ludo’.