awipsldm digest: December 16, 1999 (fwd)

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Robb Kambic                                Unidata Program Center
Software Engineer III                      Univ. Corp for Atmospheric Research
address@hidden             WWW: http://www.unidata.ucar.edu/
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---------- Forwarded message ----------
Date: Fri, 17 Dec 1999 00:00:03 -0500
From: The AWIPS LDM list digest <address@hidden>
To: awipsldm digest recipients <address@hidden>
Subject: awipsldm digest: December 16, 1999

Digest for AwipsLDM
The AWIPS LDM list Digest for Thursday, December 16, 1999.

1. Re: Uses for LDM?
2. Re[2]: Uses for LDM?

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Subject: Re: Uses for LDM?
From: Ken Waters <address@hidden>
Date: 16 Dec 1999 09:58:34 -0500
X-Message-Number: 1


     John,
     
     We have LDM running on our LDAD and use it with triggers from the DS 
     to ship (nearly) all of our text products to a webserver.  In 
     addition, we use it to acquire other data sets like Mesonet files, 
     NOGAPS, and alternative satellite imagery, and then redistribute these 
     data sets back to our field offices via our frame relay network.  
     Those field offices then have to have LDM running on their LDADs to 
     receive our products.
     
     Ken Waters
     Southern Region


______________________________ Reply Separator _________________________________
Subject: [awipsldm] Uses for LDM?
Author:  John Lipe at MAILHUB
Date:    12/15/1999 5:24 PM


AwipsLDM List
     
Does anyone know if there any web pages or other information currently posted on
how people are using LDM on LDAD?
     
We have been using LDM for several years posting AFOS data on a HP-755 system in
our office providing a database for our PCs, triggering various scripts to 
generate portions of our web pages, etc.   We have used a structure like the 
following to post CLIs
     
AFOS    ^(...)(CLI)(...)
    FILE    -strip -overwrite /extdrv1/Pubdata/CLI/\1CLI\3
AFOS    ^(LBB|FTW|SAT|ABQ|OKC)(CLI)(...)
    EXEC    /extdrv1/web_page/scripts/update_cli
     
Are some offices using similar formats on LDAD-LDM?  Does an existing source of 
AFOS products already flow into LDAD, or do you have to set up triggers on the 
DS to send data to LDAD?
     
     
Thanks for any help.
     
John Lipe,
Service Hydrologist, Lubbock, TX
     
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Subject: Re[2]: Uses for LDM?
From: John Lipe <address@hidden>
Date: 16 Dec 1999 12:11:03 -0500
X-Message-Number: 2


Randy,

Thanks for the reply.  It gives me a starting point.  I still have a lot to
learn about data flows through this system.   You'll likely see more questions
from me later.

John



____________________Reply Separator____________________
Subject:    Re: [awipsldm] Uses for LDM?
Author: Randy Weatherly
Date:       12/15/99 6:54 PM

     We are triggering text products out of ds1 to ls1, and putting them in
     a directory we created.  We then use a perl script called
     dissemenate.pl that monitors that directory.  It acts on any file that
     gets stored there based on a configuration file.  This disseminate
     info can be found at http://awips.wrh.noaa.gov/LDAD/LDAD-06.htm.

     That script does a pqinsert ... AFOS of the products into the ldm
     queue.  Then they get distributed from there, mainly to feed the WR
     Web server system.  It all works pretty well.

     I know some sites are feed their LDM from the APS, and that too works
     well.  That solution has the advantage of being simpler plus being
     redundant.  With the APS fix coming, its also stable.

     Randy




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