I wonder if there is another possibility. We had two events occur at about the same time. The DNS change and the huge jump in registered servers after the last Slashdot article. I wonder if we now have enough NTP servers in the pool to easily take care of all the NTP clients.
We have a nice graph showing the size of the server pool, http://www.pool.ntp.org/zone/@ . It would be nice to have a similar graph showing the client pool. Alternatively, a graph of DNS queries would show some interesting data. Thank you, Steve Herber [EMAIL PROTECTED] work: 206-221-7262 Security Engineer, UW Medicine, IT Services home: 425-454-2399 On Fri, 28 Sep 2007, Nelson Minar wrote: > Thanks for the explanation, Ask. > > My stats have settled down now. Changing my netspeed from 1.5Mbps to > 100Mbps resulted in my traffic going from 15 reqs/second to 19 > reqs/second and my unique IPs / second (in a 10 minute window) to go > from about 3.8 to 4.2. Unless my analysis is wrong that suggests that > increasing my speed 60x resulted in only about 1.3x more traffic after > three days. > > I've got two explanations for that.Maybe the weighting of netscores > isn't affecting the DNS rotation like you intended. Or maybe hosts > aren't looking up DNS entries very often and so haven't been exposed to > my new weighting after three days. I kind of like that second > explanation since it's consistent with what we know about how ntpd > works. Do we know how often a typical pool user re-resolves > pool.ntp.org? We know a few clients stick to an old IP address for > months, but what do most of them do? I guess your proposed experiment of > taking myself out of the DNS entirely would give us a graph of that. > Does anyone already have a requests/second graph for some server they > removed from the pool? If not I'll try it out. _______________________________________________ timekeepers mailing list [email protected] https://fortytwo.ch/mailman/cgi-bin/listinfo/timekeepers
