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 Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated.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.
On Fri, 17 Aug 2001, Anne Wilson wrote: > Unidata Support wrote: > > > > ------- Forwarded Message > > > > >To: Unidata Support <address@hidden> > > >From: Robert Leche <address@hidden> > > >Subject: Re: 20010815: ldm feed problem from noaaport > > >Organization: UCAR/Unidata > > >Keywords: 200108171628.f7HGSf103729 > > > > Hello all, > > There was a 2nd question in the last request. This has to do with LSU's > > NOAA Port. > > > > I am testing the new and improved ldm configuration on Sirocco from data I > > am > > receiving from Motherlode and Motherlode supplies all my request. This is > > not the > > case when requests are made from Datoo ( LSU's NOAA Port). Datoo is > > currently only > > supplying data for requests that are defined in the snippet of Datoo's > > ldmd.conf > > below: > > > > > > > > >##### DATOO LDMD.CONF > > > ># $Id: ldmd.conf,v 1.9 1998/10/07 16:51:16 rkambic Exp $ > > > ># Sample ldmd.conf for ldm5 > > > >#### > > > ># > > > ># Programs that share a queue with rpc.ldmd > > > ># are started by it and are in the same process group. > > > ># > > > >#exec "pqexpire" > > > >exec "pqbinstats" > > > >#exec "/data/tmp/nwstg_mps0" > > > >#exec "/data/tmp/goesw_mps1" > > > >exec "pqing -f IDS|DDPLUS /tmp/jmb.fifo.1" > > > >exec "pqing -f HRS /tmp/jmb.fifo.2" > > > >exec "pqact" > > > ># exec "pqsurf" > > > ># > > > > > > Robert, I think you know this but... ldm-5.1.3 has mods to supply the NEXRAD feedtype from the NOAAport stream, here's the release note: Modified pqing to (1) filter out products with ID SDUS5* and put them under the new NEXRAD feed type, (2) fix bug allowing AFOS products to be handled properly, and (3) switched default behavior pertaining to -5 option - now default behavior is to exclude a product's sequence number in calculating the checksum. Your ldmd.conf configuration is correct. Using ldm-5.1.3 version the ldmadmin watch command will show NNEXRAD products arriving. Robb.... Aug 22 21:08:58 pqutil: 15804 20010822210858.119 NNEXRAD 237 SDUS54 KFWD 222108 /pN0VGRK Aug 22 21:08:58 pqutil: 15129 20010822210858.150 NNEXRAD 238 SDUS53 KLOT 222108 /pN0VLOT > > Missing in particular is FNEXRAD. So the question is what steps need to be > > made to > > add extra LDM feed types. > > > > Looking at Datoo's ldmd.conf, the FIFO's are a concern. Should additional > > FIFO's > > get defined? Or simply add feed types to the two currently defined pqing > > statements such as: > > > > exec "pqing -f ANY /tmp/jmb.fifo.1" > > or create another queue with separate products? > > > > Also, please point out a source of information on defining this part of the > > ingest > > process. That is, info on setting up and ingesting from the NOAAPORT SDI > > card. > > > > ------- End of Forwarded Message > > Hi Bob, > > I'm unclear about what you're asking here. If there was an earlier > message pertainent to this one, I missed it. First, you want datoo to > get FNEXRAD, is that right? But you also want information on setting up > the ingest process in general? > > FNEXRAD is not available via NOAAPORT. FNEXRAD products are identified > from the NEXRAD stream via a web page at DuPage and/or Millersville, > which then does an 'ldmsend' of the station names to motherlode. On > motherlode, pqact uses a script to find and duplicate the appropriate > radar products and put them under the FNEXRAD feed type. > > Consequently, I believe FNEXRAD is only available from motherlode. > (Robb, please correct me if I'm wrong about this.) > > I see that on motherlode we have the following for you: > > allow UNIDATA|FSL2|DIFAX|NMC3 ^sirocco\.srcc\.lsu\.edu$ > allow UNIDATA|FSL2|DIFAX|NMC3 ^Nafhat\.srcc\.lsu\.edu$ > > I have added the following: > > allow UNIDATA|FSL2|DIFAX|NMC3 ^datoo\.srcc\.lsu\.edu$ > > Are any of these no longer applicable so they can be removed from this > conf file? Is nafhat still in the picture? > > Regarding info about ingesting from the SDI card, we really don't have > any formal pages. We do have some experience that I can share with > you. Please let me know if I'm on the right track here before I go any > further. > > I will be away on vacation next week. If you have any questions that > can't wait until Aug 27, send email to address@hidden. > > Anne > -- > *************************************************** > Anne Wilson UCAR Unidata Program > address@hidden P.O. Box 3000 > Boulder, CO 80307 > ---------------------------------------------------- > Unidata WWW server http://www.unidata.ucar.edu/ > **************************************************** > =============================================================================== Robb Kambic Unidata Program Center Software Engineer III Univ. Corp for Atmospheric Research address@hidden WWW: http://www.unidata.ucar.edu/ ===============================================================================