Nodes not getting any specialization might also be part of the problem I guess.. My node is serving 20k+ QPH (and has done so for over a month) bandwidthlimited to 60kbyte/s outgoing and it hasn't aquired any specialization yet. Histogram of keys in in fred's Routing table 0 |======================================= 1 |============================================= 2 |=============================================================== 3 |====================================== 4 |========================= 5 |============================== 6 |================================== 7 |=============================== 8 |========================== 9 |====================================== a |==================================== b |================================== c |========================= d |=================== e |================================ f |==================================== ----- Original Message ----- From: "Ed Tomlinson" <[email protected]> To: <devl at freenetproject.org>; "Toad" <toad at amphibian.dyndns.org> Sent: Saturday, May 17, 2003 4:22 AM Subject: Re: [freenet-dev] Pcaching, or lack thereof...
> entries: 100 > Global mean traffic (queries per hour):3321.9222222222224 > Local mean traffic (queries per hour): 689.6485665846112 > Current advertise probability: 0.15754031587654324 > Current proportion of requests being accepted: 0.99 > > This is what I expect to see. I have out going bandwidth limited > to half of the available, 6k/s. Node is well integrated with a 8G ds with > about 19000 keys. > > I also have noticed the network has shifted my nodes specialization > reciently. I was down for about 30 hours. After this my node was found > quickly but after about three days I noticed the dense part of the routing > histo had moved. Looking that the ds histo the content has not shifted > much yet. Nodes changing specialization after a short down my also be > part of the problem... > > Ed Tomlinson > > On May 16, 2003 03:42 pm, Toad wrote: > > On Fri, May 16, 2003 at 07:29:02PM +0100, Toad wrote: > > > Or alternatively, > > > > > > http://127.0.0.1:8888/servlet/nodestatus/version_histogram.txt > > > > > > :))) > > > > > > > > (My apologies for the *horrible* perl -- it's not my best language.) > > > > Anyway, this shows that out of the 100 nodes in my routing table, only > > > > 14 of them are running pre-build-579 nodes. Builds 593-595 dominate > > > > in this part of Freenetland. (That one build-629 node is probably > > > > pre-pcaching too, but I'm not certain.) > > > > > > > > > Maybe we should make 0.5.2 mandatory? > > > > > > > > I think there's not enough evidence on either side of the pcaching > > > > argument to decide this yet. > > > > > > There won't be until pcaching actually does something. The statistics > > > strongly suggest that pcaching is not doing much because every two hops > > > or so it hits a pre-pcaching node. Or that there is some extremely wierd > > > bug happening somewhere... > > > > So, a theory presents itself: we have > > Set A: N nodes with high traffic, ~3k reqs per hour to ~ 100k reqs per hour > > Set B: M nodes with low traffic, hundreds of reqs per hour or less > > > > N is a LOT smaller than M. > > > > Set A nodes have low advertising (datasource reset) probabilities, but > > Set B nodes have high advertising probabilities, due to the load > > balancing algorithm, which evidently isn't working. Hence a request > > goes out on the network and after a few hops meets a set B node, and > > gets its datasource reset and consequentially hopsSinceReset set to > > zero. Interestingly, the nodes that get little traffic are NOT locally > > overloaded, or they would have lower reset probabilities due to the > > (proportion of requests accepted) ^ 5 which is multiplied into the reset > > probability... > > > > Any suggestions as to what to do about this? > > > > BTW, I want to see some reset probabilities from live nodes to try to > > confirm this statistically. Mail me the top five lines from > > http://127.0.0.1:8888/servlet/nodeinfo/networking/loadstats > > > > > > -- > > > > Greg Wooledge | "Truth belongs to everybody." > > > > greg at wooledge.org | - The Red Hot Chili Peppers > > > > http://wooledge.org/~greg/ | > > > > _______________________________________________ > > devl mailing list > > devl at freenetproject.org > > http://hawk.freenetproject.org:8080/cgi-bin/mailman/listinfo/devl > _______________________________________________ > devl mailing list > devl at freenetproject.org > http://hawk.freenetproject.org:8080/cgi-bin/mailman/listinfo/devl > _______________________________________________ devl mailing list devl at freenetproject.org http://hawk.freenetproject.org:8080/cgi-bin/mailman/listinfo/devl
