On Friday 05 September 2008 04:24, Daniel Cheng wrote: > On Fri, Sep 5, 2008 at 7:29 AM, Matthew Toseland > <toad at amphibian.dyndns.org> wrote: > > Nextgens and others have been warning for some time that churn may be one of > > the biggest challenges facing Freenet. How can we quantify this? Simulations > > might be able to tell us something about the impact of churn on swapping, > > data retention etc (when vive is done with the opennet/swapping project) ... > > but we'll need some idea of what churn actually looks like. Is it the case > > that 90% of our hits install Freenet, give it 5 minutes and then uninstall > > it? (join/leave churn, in the Pitch Black terminology). What about low-uptime > > nodes? How can we gather info on typical node uptimes? The reported uptimes > > on a node's opennet peers are probably a rather biased sample, for instance. > > 1) Low uptime nodes
How much of a problem are they? How do we find out? > > 2) When a opennet node down for some minutes come back online, > they reseed from the seed nodes and connected to new peers > -- this make the node swap to another location. Hopefully vive's results will enable us to turn off swapping on opennet, and therefore reduce location churn significantly. > > Last time we talk about this, we can't decide what to do on mixed > dark/opennet node. > Maybe we can do this just on pure opennet node? > > > Any ideas? It's probably worth simulating to see what kinds of churn affect > > the network most badly, but we'll need to know what actually happens to see > > where our energy should be best directed in terms of countermeasures and > > tradeoffs. Thoughts??? -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 827 bytes Desc: not available URL: <https://emu.freenetproject.org/pipermail/devl/attachments/20080905/529cd695/attachment.pgp>
