>From: "Kevin W. Thomas" <address@hidden> >Organization: OU/CAPS >Keywords: 200309300045.h8U0jvk1023216 IDD LDM upgrade Hi Kevin, re: please report realtime stats >I left it in the file uncommented, so you should be getting the stats. OK, the stats are now showing up in our real time stats pages. A quick look at the topology link for munchkin: Real-Time IDD statistics http://www.unidata.ucar.edu/staff/chiz/rtstats/ Statistics by Host http://www.unidata.ucar.edu/staff/chiz/rtstats/siteindex.shtml munchkin.caps.ou.edu [ 6.0.14 ] http://www.unidata.ucar.edu/staff/chiz/rtstats/siteindex.shtml?munchkin.caps.ou.edu Clicking on any of the 'topology' links shows that munchkin is requesting data from its upstream hosts by IP number, not by fully qualified hostname. While this works, it limits our ability to calculate differential latencies (latencies from you to your immediate upstream feed site; from your immediate feed site to its immediate upstream feed site; etc.) and to depict the full path the data took between injection into the IDD and you. You can see that the CONDUIT feed topology from thelma to munchkin shows that the upstream feeder is 188.8.131.52. If you change your request from thelma's IP to its fully qualified hostname, thelma.ucar.edu, the topology page would show a link to thelma, and clicking on the link would show the latency from thelma to you. Also, you would be able to see where thelma was getting its feed, and so on as long as the request for the feed on each machine in the chain is by fully qualified hostname AND that host is reporting real time statistics. So, for the feeds you are receiving from Unidata IDD nodes (like thelma.ucar.edu), we would appreciate you changing your request line from IP address to fully qualified hostname in ~ldm/etc/ldmd.conf. Again, any time a change is made in ldmd.conf, the LDM has to be stopped and restarted for the change to take effect. Thanks for your help! Tom >From address@hidden Thu Oct 9 17:14:28 2003 Tom... A long time ago, I was told to use IP's instead of machine names due to problems with DNS. It is obvious that the problems no longer exist. I've switched to machine names for munchkin/winkie.caps.ou. The only exception is the CRAFT names. IP's are much easier here. Since the CRAFT computers are next to WINKIE/MUNCHKIN, I don't think have I have to worry about any latency issues. Kevin W. Thomas Center for Analysis and Prediction of Storms University of Oklahoma Norman, Oklahoma Email: address@hidden
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