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Re: introducing http.debian.net



Donald Norwood wrote:
> 
> 
> On 06/22/2012 02:24 PM, Darren Baginski wrote:
>> 22.06.2012, 22:01, "Darren Baginski"<kickbsd@yandex.com>:
>>>>   I've been working on a project that provides an alternative to
>>>> cdn.d.n. It
>>>>   is based on http redirections.
>>>>   An introduction can be found on the site itself[1], and a
>>>> comparison to
>>>>   cdn.d.n at [2].
>>>>
>>>>   I now have setup a test instance in a host in Canada to allow
>>>> people to
>>>>   actually test and use the system. This host is http.debian.net.
>>> This is very bad idea, instead of having auto mirror selection
>>> mechanism you've implemented classical Single Point of Failure
>>> Proper implementation should loop over existing mirrors, starting
>>> with less latency/faster transfer and then fallback/load balance to
>>> another,
>>> if file is not available. Unfortunately your solution is not solution
>>> at all. Something close to proper implementation is used for fedora
>>> infrastructure.
>>> 3xx per file redirect is not a scale-able solution.
>>>
> 
> Can you clarify what you mean by single point of failure? One would
> think that having a redirector point towards several *matched* mirrors
> in terms of load balancing, distance, consistency checks, and
> newer/fresher mirrors would be of great benefit vs. picking a mirror and
> discovering it is either down, out of sync, off-line, or otherwise
> befallen. The master list is always available so one can still pick and
> choose a favored mirror to override the http.d.o suggestion.

I think he means the redirector itself would be a single point of failure.

Regards,
Austin.


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