download problem

[K.R. Foley]

Matt Domsch wrote:
> On Thu, May 15, 2008 at 10:04:51PM +1200, Nigel Jones wrote:
>> subhodip biswas wrote:
>>> hi !
>>> while trying to download F9 what I face is quite frustrating ..in fact
>>> this can be faced by a lot of user in India .
>>> while  wbut mirror is down (temporarily ) and other cannot handle all
>>> the load and bit torrent is quite slow .
>>> clicking on i386 direct download always gives error 412 : too many
>>> connected users .
>>> any way of avoiding this .. I am currently downloading from a mirror
>>> in USA and its quite slow.
>>>
>>>  
>> Hi,
>>
>> Going from what I know (someone might want to update me here):
>> We currently only have 3 mirrors in India 
>> (http://mirrors.fedoraproject.org/), one is on a 45mbps link, while the 
>> other two are on 5mbps and 2mbps links.
> 
> One thing MM would benefit from would be a weighted sampler.
> 
> Right now, it collects various lists of Hosts to return (same
> netblock, same country, same continent, global). It shuffles (python random.shufle()) each of
> the lists, then concatenates them, and sends that result to the end
> user.  However, this does not take into account that one mirror has a
> 45Mbps link, and another a 2Mbps; they would each get chosen
> "randomly".
> 
> What I need is a replacement for random.shuffle() that takes a list of
> tuples: (something, weight).  And returns a list of somethings that
> was generated with a statistical sampling based on weight.
> 
> Now, this is _probably_ a simple thing to do; my college number theory
> professor would mock me for having not "just done it" myself, but hey
> - I took that class _twice_ before passing it - I don't trust my
> skills in this area to get it right.
> 
> Volunteers?
> 
> 

Perhaps something like the attached test program. I am new to python so 
be gentle.

-- 
	kr
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