[Distutils] [Catalog-sig] Proposal: Move PyPI static data to the cloud for better availability

[Simon de Vlieger]

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On 15 jun 2010, at 16:42, Mathieu Leduc-Hamel wrote:

> I think the most important missed fact is, just how unreliable is PyPI
> currently? Does anyone know?
>
> Exactly my point, right now, since the code is not completely clear   
> and not tested we don't really know what's supposed to worked and how.
>
> It's really a problem when the only way you have to know if  
> something goes wrong is when your users start complaining...

Is there any Nagios monitoring in place or is there the need to have  
some external reliability monitoring in place?

I can set up a Nagios machine to check the HTTP status of PyPi. Also,  
if the earlier described path of PyPi mirroring my the community is  
chosen I can happily have a server serving PyPi packages in the  
Netherlands.

>
>
> I don't think this means what you seem to think it means. If you  
> replace
> a single point of failure with N points of failure, your overall
> reliability goes down, not up, since there are now more things to go
> wrong. Assuming that they're independent points of failure, that means
> your total number of failures will increase by a factor of N.
>
>
> This is why we should work on the heart the problem problem, pypi  
> itself and why it's down sometime.
>
> Nobody know exactly what happen, maybe it's not a performance  
> problems.
>
> As you said, we may have the same problem in the future on all  
> mirroring nodes ...

Yes, there should be some more investigative work be done on the  
reason of the apparent unreliability.

Regards,

Simon de Vlieger

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