This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.
Chris, I ran notifyme to twister.sbs.ohio-state.edu for the NLDN feed, and it shows you have been receiving the NLDN data: ~ldm/bin/notifyme -v -l - -o 3600 -f NLDN -h twister.sbs.ohio-state.edu Jun 05 21:36:47 notifyme[24031]: Starting Up: twister.sbs.ohio-state.edu: 20010605203647.041 TS_ENDT {{NLDN, ".*"}} Jun 05 21:36:47 notifyme[24031]: NOTIFYME(twister.sbs.ohio-state.edu): OK Jun 05 21:36:47 notifyme[24031]: 40012 20010605204236.827 NLDN 000 2001156203641 Jun 05 21:36:47 notifyme[24031]: 38920 20010605204836.745 NLDN 000 2001156204247 Jun 05 21:36:47 notifyme[24031]: 39480 20010605205437.369 NLDN 000 2001156204853 Jun 05 21:36:47 notifyme[24031]: 40684 20010605210037.056 NLDN 000 2001156205459 Jun 05 21:36:48 notifyme[24031]: 40180 20010605210636.191 NLDN 000 2001156210005 Jun 05 21:36:48 notifyme[24031]: 38976 20010605211236.768 NLDN 000 2001156210611 Jun 05 21:36:48 notifyme[24031]: 38024 20010605211837.376 NLDN 000 2001156211217 Jun 05 21:36:48 notifyme[24031]: 37156 20010605212438.076 NLDN 000 2001156211823 Jun 05 21:36:48 notifyme[24031]: 39088 20010605213040.497 NLDN 000 2001156212429 Jun 05 21:36:49 notifyme[24031]: 39844 20010605213637.754 NLDN 000 2001156213035 Check your pattern/actions in pqact.conf if you aren't FILE'infgthe data. Steve Chiswell Unidata User Support >From: David Knight <address@hidden> >Organization: UCAR/Unidata >Keywords: 200106052128.f55LSkp23213 >Hi Chris, > First, it is best to send UAlbany computer support >qustions (including ldm stuff) to address@hidden >this way whoever is available first can deal with it. > >I'm not sure what the problem is. I'll cc this to >address@hidden in case they have some insight. >Below find a typical log entry for the NLDN feed to twister. >It appears it connects OK, but, then there is some kind >of RPC problem, so it has to get connected again. > >Jun 05 18:02:24 striker twister[28932]: Connection from >twister.sbs.ohio-state.e >du >Jun 05 18:02:24 striker twister(feed)[28932]: Starting Up: >20010605170030.777 TS >_ENDT {{NLDN, ".*"}} >Jun 05 18:02:24 striker twister(feed)[28932]: topo: >twister.sbs.ohio-state.edu >Jun 05 18:17:46 striker twister(feed)[28994]: >nullproc(twister.sbs.ohio-state.ed >u): RPC: Unable to receive >Jun 05 18:17:46 striker twister(feed)[28994]: Exiting >Jun 05 18:17:59 striker twister[29078]: Connection from >twister.sbs.ohio-state.e >du >Jun 05 18:17:59 striker twister(feed)[29078]: Starting Up: >20010605171606.400 TS >_ENDT {{NLDN, ".*"}} >Jun 05 18:17:59 striker twister(feed)[29078]: topo: >twister.sbs.ohio-state.edu >NLDN > > >You might want to stop your ldm, and recreate the queues, and >restart your ldm. Perhaps your queue got corrupt somehow. >If that doesn't work send email to address@hidden >and to address@hidden and perhaps together we can >figure out why you're not getting the data. > >David > >> David - >> >> I haven't been receiving NLDN data since May 9 - any ideas as to why? >> The machine that is requesting the feed is twister.sbs.ohio-state.edu. >> Just wanted to make sure we were still hooked up on your end. >> >> Chris >> >> ================================================ >> | Chris Hennon Ohio State University | >> | Tropical Meteorology address@hidden | >> | | >> | Dept of Geography Office: 1155 Derby Hall | >> | 1036 Derby Hall Phone : (614) 292-2704 | >> | Columbus, OH 43210 Fax : (614) 292-6213 | >> ================================================ >> >> On Tue, 5 Jun 2001, David Knight wrote: >> >> > Hi, >> > I've just been informed that the University at Albany >> > Internet connection will be down between 6am and 7am >> > this thursday. >> > >> > If your primary feed is redwood.atmos.albany.edu I suggest >> > you switch to your failover for this period. >> > >> > If you recieve NLDN data from striker.atmos.albany.edu >> > no data will be available during this time. >> > >> > Sorry for the inconvenience >> > >> > David Knight >> > Department of Earth and Atmospheric Sciences Tel: (518)-442-4204 >> > University at Albany ES-228 Fax: (518)-442-4494 >> > Albany, NY 12222 Email: knight@atmos.albany. > edu >> > >> >