On 6/22/06, Ed Tomlinson <edt at aei.ca> wrote:
> With a node up 7x24 I am currently seeing .35 variation in location
> on a daily basis.  I have 8-10 connected peers.
>
> Ed
>
> On Wednesday 21 June 2006 12:01, Ruud Javi wrote:
> > >Is there a serious problem with node location stability? Oskar's
> > >simulations suggest not. Anything which impacts location swapping will
> > >need to be simulated, of course.
> >
> > Well... I can only talk for myself, but my own node's location is changing
> > often to total different values. Yesterday I was at about 0.4 and at this
> > moment I am around 0.1 . Note that I did not add or remove peers in between.
> > With the size of the current network, I think that a change of about 0.3 is
> > extremely big and unwanted.
> >
> > Anyway, I am unsure how serious this problem is. So far, I am able to
> > retrieve all Freesites inside Freenet .7 , also old ones. Maybe when the
> > network grows, it's harder to find keys and it does seems to be a serious
> > problem.
> >
> >
> >
> > >My main concern with treating offline nodes as online for purposes of
> > >swapping is that swaps cannot involve those offline nodes; they are
> > >static for the period while they are offline, this may not be good for
> > >location swapping.
> >
> > Agreed on. Most optimistic view against that is that when the node comes
> > back on he will have the same location. If a swap occurs, no matter how you
> > treat off-line nodes, the effect for the offline node is none untill it gets
> > back on.
> >
> > As long as we will not have much DNF's, as told above, this is probably not
> > an issue.
> >
> >
> >
> >
> > >On Wed, Jun 21, 2006 at 04:25:40PM +0200, Ruud Javi wrote:
> > > > The following text is describing a way to have a more stable node
> > >location,
> > > > by treating temporary offline nodes as online nodes.
> > > >
> > > > The location of your node is depending on your neighbors. If your
> > > > neighbor?s locations are all around 0.5, then your node will also try to
> > > > get a location close to 0.5
> > > >
> > > > When somebody is inserting content into Freenet, specific keys will go
> > >to
> > > > specific locations. Others are able to retrieve this content as long as
> > > > your node is at that location (or close). For that reason it?s a good
> > >thing
> > > > if a node would stay at a specific location.
> > > >
> > > > If the network is stable, no location-swaps would occur. The network
> > >would
> > > > not be stable if nodes join the network or leave the network. This can
> > >be
> > > > as well temporary (non 24/7 nodes) or permanent (nodes joining/leaving).
> > > >
> > > > Against permanent changes is not that much possible; when new nodes
> > >arrive
> > > > it is necessary that this has an effect on node locations.
> > > >
> > > > Against temporary changes we can do something. If a neighbor of you
> > >would
> > > > go offline (bedtime), your node would choose another location, as most
> > > > optimal. Instead of this your node could just treat the offline node as
> > >an
> > > > online node for some time (perhaps 24 hours). Of course your node could
> > >not
> > > > change the location with an offline node, but it could decide not to
> > >change
> > > > location with an online node. The idea is that once the offline node
> > >would
> > > > come back online, you would want your old location back.
> > > >
> > > > In this way your node?s location would most probably be more stable as
> > >the
> > > > current situation.
> > > >
> > > > Last questions:
> > > > - Is a more stable node location a big advantage?
> > > > - Will routing be worse if a lot of your neighbors are temporary
> > > > offline and you would not change node location?
> > >--
> > >Matthew J Toseland - toad at amphibian.dyndns.org
> > >Freenet Project Official Codemonkey - http://freenetproject.org/
> > >ICTHUS - Nothing is impossible. Our Boss says so.
> >
> >
> > ><< signature.asc >>
> >
> >
> >
> >
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> >
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The net is also still very small, wouldn't that have a larger effect
on the locations?

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