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20050614: GEM data request from waterspout to idd.unidata.ucar.edu

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 Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated.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.

  • Subject: 20050614: GEM data request from waterspout to idd.unidata.ucar.edu
  • Date: Tue, 14 Jun 2005 12:48:05 -0600
>From: Unidata User Support <address@hidden>
>Organization: Unidata Program Center/UCAR
>Keywords:  IDD GEM data request

Hi Neil,

waterspout.cst.cmich.edu is making a request for GEM data from the
Unidata-maintained toplevel IDD relay node, idd.unidata.ucar.edu (also
known as thelma.ucar.edu).  Since GEM data is only available using a
point-to-point feed from the CMC (i.e., we do not relay GEM data), we
are getting lots of log messages in our LDM log file of the form:

Jun 13 20:28:58 uni2 waterspout[4237]: ldm6_server.c:128: Empty wanted/allowed 
product-cl
ass intersection for waterspout.cst.cmich.edu: 20050613192858.782 TS_ENDT 
{{GEM,  ".*"}} 
-> <nil> 

You should see corresponding denial messages in the ~ldm/logs/ldmd.log
file on waterspout.

We would greatly appreciate you removing the feed request for GEM data
from your ~ldm/etc/ldmd.conf file and stopping and restarting your
LDM.  While you are at it, if you have request lines in your ldmd.conf
file that refer to thelma.ucar.edu, please change the entries (even if
they are commented out) to idd.unidata.ucar.edu.

If you want to receive GEM data, we can send in a request to the CMC to
have waterspout allowed.  Please let us know.

Finally, I was under the vague impression that you were no longer the
LDM contact person at Central Michigan, but our (possibly out of date)
records indicate that you are.  Please advise if we should be sending
LDM questions to someone else  (Leigh Orf?).

Thanks in advance for your help!

Cheers,

Tom Yoksas