[Yum] mirrorlist server selection

[Ljubomir Ljubojevic]

James Antill wrote:
> Adrian Reber <adrian at lisas.de> writes:
> 
>> For RPM Fusion's mirrorlist I am also running Matt Domsch's
>> MirrorManager and we have two servers serving the mirrorlist. It is one
>> DNS name which resolves to two IPs. Yum automatically uses the correct
>> mirrorlist server if one of the servers is down (or if nothing answers
>> on port 80).
> 
>  As far as I can see there is no code to do this anywhere, for either
> mirrorlist or metalink yum just has a single URL and requests that
> from urlgrabber (and AFAIK there's nothing in urlgrabber to try all
> IPs for a given host, but maybe there is).
> 
>> I do not know if this is on purpose but if something is
>> answering on the port the mirrorlist is supposed to run with a http
>> status code 500 or 40? would it not also make sense to try another of
>> the available mirrorlist servers? This is especially a problem for RPM
>> Fusion because the mirrorlist infrastructure is not in as good hands as
>> the Fedora infrastructure.
> 
>  Now, in theory, it'd be possible to change _getMetalink() to have a
> list of URLs and try each in turn until we get "something that
> parses". But it's not super easy, and it'd need a lot of testing
> (... patches accepted :).
> 
What about caching last list of mirrors and automatically iterating 
through that list if mirrorlist does not respond?

Ljubomir