Re: [p2pi] Charter and problem statement

[Enrico Marocco <enrico.marocco at telecomitalia.it>]

Sebastian Kiesel wrote:
> On Fri, Jul 11, 2008 at 11:10:41AM -0400, Laird Popkin wrote:
>> For this level of discussion, I agree that caches should simply be
>> viewed as a peer in ALTO.
> 
> What happens if we consider caches and rare content, i.e., content where
> the likelyhood is high, that there is a cache miss when we ask for it
> and that the cache will never deliver a second copy of it? It might not
> be wise to select a cache which is in the "opposite direction" of the
> original content, even if connectivity to the cache is "better"
> (according to whatever criteria). If the cache tries to fetch the
> content the request may pass by the client and go through the same "bad"
> link plus twice through the "good" one.

As long as caches are viewed as regular peers, they will be included in
ALTO requests/responses only if they actually have the resource the
querying peer wants to access.

-- 
Ciao,
Enrico

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