[p2p-hackers] p2p framework

[Serguei Osokine]

On Tuesday, November 29, 2005 Haris Papadakis wrote:
> ...it is NOT the purpose of Gnutella to reach all the network.

	No, it is not - but it might do that anyway as a bonus, even at
its current size. This study:

http://www.grouter.net/gnutella/search.htm

shows that with some simple proactive caching Gnutella can effectively
search several million network nodes. Current implementations are not
doing that - probably because the feeling is that no one needs that 
much coverage in a file-sharing application, so today dynamic querying
mentioned by Greg, and such things as QRP (sort of a Bloom filter) are
used instead. 

	But if the wider network coverage is needed, the possibility is
certainly there - especially since proactive caching is orthogonal to 
dynamic querying and other optimizations and can be used together with
them. I'd say that reaching 10M nodes or so is not out of question, 
and this limit keeps growing, because it is directly proportional to 
the average node bandwidth and session time.

	Best wishes -
	S.Osokine.
	29 Nov 2005.


-----Original Message-----
From: p2p-hackers-bounces at zgp.org [mailto:p2p-hackers-bounces at zgp.org]On
Behalf Of Haris Papadakis
Sent: Tuesday, November 29, 2005 9:13 AM
To: Peer-to-peer development.
Subject: Re: [p2p-hackers] p2p framework


On Tue, 29 Nov 2005, Daniel Stutzbach wrote:

> On Tue, Nov 29, 2005 at 11:33:55AM -0500, Greg Bildson wrote:
> > > I came across Gnutella, which in its pure architecture suffers from
> > > scalability problems due to flooding.
> >
> > Gnutella "flooding"?  That is so 2002.  Your phrase "iterative deepening"
> > sounds more like the dynamic querying that we use now.
>
> I find it amusing when people claim a functioning 2-million peer
> system doesn't scale. :-)
>
Well, actually, either does not scale or does not give good coveragae. Cos
as I have said in another list, the basic reason Gnutella scales is TTL,
no? Is it not tha case in Gnutella: Scalability, coverage, pick one?
I must have an email somewhere from a developer in Limewire saying that it
is NOT the purpose of Gnutella to reach all the network..

Harris Papadakis
ICS-FORTH
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