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 Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated.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.
Jennie, A quick test for your connection to an upstream site is to do a notifyme to them, ie, % notifyme -vl - -h <upstream host> This tells you if they are receiving data also. Another test is the ldmping, ie % ldmping -i 5 -h <upstream host> Sometimes when you can't reach most of the upstream sites, it's usually a local network problem. Do notify your campus network people when you are having a problem, also tell them the destination host. They can tell you the scoop locally or find out if it's an ISP problem. Robb... On Tue, 9 Mar 1999, Unidata Support wrote: > >To: address@hidden, > >To: address@hidden, > >To: address@hidden > >cc: address@hidden, > >cc: address@hidden, > >cc: address@hidden > >From: "Jennie L. Moody" <address@hidden> > >Subject: LDM Feed > >Organization: . > >Keywords: 199903091537.IAA06450 > > Jeff and Jeff, > > You guys are sites I have for upstream host and failover right now. > Yesterday I was getting all of the DDS/PPS/HRS feed products into > our server windfall from Penn State, however, we stopped getting any > of the Unidata McIDAS broadcast in the morning. I noticed this > early in the day, but was too busy to diagnose what was going wrong. > There were some network connection problems early in the morning, > so I thought that might have been the trouble ,but those seemed to clear up, > and then we continued to get all the non-Unidata Mcidas products we request, > but > no satellite data, etc. > > Last night I tried restarting the ldm, which made no difference, > and so this morning, after calling Jeff Wolfe at Penn State to > see if anything had changed on their end (and not getting him) , I > decided to just switch our feed to Michigan. Jeff M., I did see the > message you sent out last Friday indicating that blueskies was going > off line and encouraging folks to switch to aldehyde, however, I > pinged your machine and seeing it was up thought you might be > broadcasting from there. However, I have stopped and started the ldm > with blueskies as our feed, and now we seem to be getting nothing! > > windfall: /incoming/data $ tail -150 /home/ldma/logs/ldmad.log > Mar 09 15:08:24 windfall.evsc.Virginia.EDU rpc.ldmd[23665]: Starting > Up (built: Aug 13 1997 14:11:27) > Mar 09 15:08:24 windfall.evsc.Virginia.EDU pqexpire[23666]: Starting > Up > Mar 09 15:08:24 windfall.evsc.Virginia.EDU pqact[23668]: Starting Up > Mar 09 15:08:24 windfall.evsc.Virginia.EDU blueskies[23670]: > run_requester: Starting Up: blueskies.sprl.umich.edu > Mar 09 15:08:24 windfall.evsc.Virginia.EDU blueskies[23670]: > run_requester: 19990309150734.687 TS_ENDT {{MCIDAS|HDS|DDPLUS, > "(^[A-OQ-X])|(^[YZ].[^AHIJRU > Mar 09 15:08:24 windfall.evsc.Virginia.EDU pqbinstats[23669]: Starting > Up (23665) > Mar 09 15:08:25 windfall.evsc.Virginia.EDU udp.ldmd[23671]: Starting > Up > Mar 09 15:08:25 windfall.evsc.Virginia.EDU localhost[23696]: > Connection from localhost > Mar 09 15:08:25 windfall.evsc.Virginia.EDU localhost[23696]: > Connection reset by peer > Mar 09 15:08:25 windfall.evsc.Virginia.EDU localhost[23696]: Exiting > Mar 09 15:08:25 windfall.evsc.Virginia.EDU pqexpire[23666]: > Recycled > 7885.913 kb/hr ( 8257.253 prods per hour) > Mar 09 15:09:24 windfall.evsc.Virginia.EDU blueskies[23670]: > FEEDME(blueskies.sprl.umich.edu): > h_clnt_create(blueskies.sprl.umich.edu): Timed out while c > Mar 09 15:13:27 windfall.evsc.Virginia.EDU pqexpire[23666]: > Recycled > 7052.245 kb/hr ( 8148.136 prods per hour) > Mar 09 15:18:28 windfall.evsc.Virginia.EDU pqexpire[23666]: > Recycled > 6891.832 kb/hr ( 7341.406 prods per hour) > Mar 09 15:20:44 windfall.evsc.Virginia.EDU blueskies[23670]: > run_requester: 19990309150734.687 TS_ENDT {{MCIDAS|HDS|DDPLUS, > "(^[A-OQ-X])|(^[YZ].[^AHIJRU > Mar 09 15:21:44 windfall.evsc.Virginia.EDU blueskies[23670]: > FEEDME(blueskies.sprl.umich.edu): > h_clnt_create(blueskies.sprl.umich.edu): Timed out while c > Mar 09 15:23:29 windfall.evsc.Virginia.EDU pqexpire[23666]: > Recycled > 6602.312 kb/hr ( 6808.735 prods per hour) > windfall: /incoming/data $ /home/ldma/bin/ldmadmin watch > (Type ^D or ^C when finished) > > > > ----several minutes of "watching" and nothing was coming in------ > > > I am not sure what to make of the "Timed out" line on the FEEDME to > blueskies, I don't know if you are not running the ldm on this > machine, or if this implies a network connection problem. I will > probably just try switching to aldehyde, but I don't even know if you > have me in your configuration for that machine. > > I would appreciate if either of you are out there and can respond > so I can get data flowing again. I need to leave shortly since its > snowing and they just cancelled school here, so my kids are heading > home for the day. > > Thanks for any assistance in getting our data flowing again. > > Best Regards, > > Jennie Moody > (P.S. Jeff Masters, sorry I missed you when I was out > working with Mary Anne Carroll a couple weeks ago, was > hoping to do a little catching up.) > > -- > > *~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~* > > Jennie Lynne Moody, Ph.D. > Research Associate Professor > > Department of Environmental Sciences Ph: (804) 924-0592 > University of Virginia (804) 924-0569 > > Clark Hall address@hidden > Charlottesville, VA 22903 FAX:(804) 982-2300 > > Atmospheric Modeling and Operational Meteorology > UVA Weather Page--> http://windfall.evsc.virginia.edu/~mcuser > > *~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~* > =============================================================================== Robb Kambic Unidata Program Center Software Engineer III Univ. Corp for Atmospheric Research address@hidden WWW: http://www.unidata.ucar.edu/ ===============================================================================