On Sat, Mar 09, 2002 at 10:46:46AM -0500, Jeff Darcy wrote: > "Seems to" is the key phrase. It doesn't provide any kind of guarantee, or > even improve availability by any determinate amount. Furthermore, as more > people join the race to stay at the top of everyone's cache the benefit to > each decreases...while network traffic continues to increase. At a certain > point this becomes tantamount to a deliberate denial of service, and should > be treated by the network as such. I think what some people are suggesting > here is something that improves availability deterministically and without > increasing network traffic, even if it ends up being less than an ironclad > availability guarantee (which might not be possible in this context).
The most promising research direction to increase Freenet's data retention (ie. to increase the probability that people find data that was inserted into the network at some time in the past) is to look at conditional caching. For example, having a higher caching probability closer to the origin of the data along a request-reply path should increase node specialization and reduce the rate at which data is dropped. At the moment, all data is cached. I have been encouraging people to volunteer to experiment with simulations to this effect, but unfortunately there haven't been any takers yet. Ian. -- Ian Clarke [EMAIL PROTECTED] Founder & Coordinator, The Freenet Project http://freenetproject.org/ Chief Technology Officer, Uprizer Inc. http://www.uprizer.com/
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