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[LDM #KGJ-740033]: Problems with LDM

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  • Subject: [LDM #KGJ-740033]: Problems with LDM
  • Date: Wed, 22 May 2013 15:10:08 -0600
Hi Peter,

Please try the follow:

change your REQUEST lines from:

REQUEST ANY-GPS-MCIDAS ".*" idd.unidata.ucar.edu
REQUEST ANY-GPS-MCIDAS ".*" idd.tamu.edu
REQUEST MCIDAS ".*" idd.aos.wisc.edu
REQUEST MCIDAS ".*" idd.ssec.wisc.edu
REQUEST GPS ".*" suomildm1.cosmic.ucar.edu
REQUEST GPS ".*" idd.unidata.ucar.edu

to:

REQUEST ANY-CONDUIT-NEXRAD2-GPS-MCIDAS ".*" idd.tamu.edu
REQUEST NEXRAD2 ".*" idd.tamu.edu
REQUEST CONDUIT "([09]$)" idd.tamu.edu
REQUEST CONDUIT "([18]$)" idd.tamu.edu
REQUEST CONDUIT "([27]$)" idd.tamu.edu
REQUEST CONDUIT "([36]$)" idd.tamu.edu
REQUEST CONDUIT "([45]$)" idd.tamu.edu

REQUEST ANY-CONDUIT-NEXRAD2-GPS-MCIDAS ".*" idd.unidata.ucar.edu
REQUEST NEXRAD2 ".*" idd.unidata.ucar.edu
REQUEST CONDUIT "([09]$)" idd.unidata.ucar.edu
REQUEST CONDUIT "([18]$)" idd.unidata.ucar.edu
REQUEST CONDUIT "([27]$)" idd.unidata.ucar.edu
REQUEST CONDUIT "([36]$)" idd.unidata.ucar.edu
REQUEST CONDUIT "([45]$)" idd.unidata.ucar.edu

REQUEST MCIDAS ".*" idd.aos.wisc.edu
REQUEST MCIDAS ".*" idd.ssec.wisc.edu
REQUEST GPS ".*" suomildm1.cosmic.ucar.edu
REQUEST GPS ".*" idd.unidata.ucar.edu

We came up with this suggesting after reviewing the latencies
that are being reported by ldmingest02:

Unidata HomePage
http://www.unidata.ucar.edu

  Projects -> Internet Data Distribution
  http://www.unidata.ucar.edu/projects/index.html#idd

    IDD Current Operational Status
    http://www.unidata.ucar.edu/software/idd/rtstats/

      Statistics by Host
      http://www.unidata.ucar.edu/cgi-bin/rtstats/siteindex

        ldmingest02.nwc.ou.edu [6.10.1]
        
http://www.unidata.ucar.edu/cgi-bin/rtstats/siteindex?ldmingest02.nwc.ou.edu

The latencies for the very low volume IDS|DDPLUS are unacceptably
high.  The theory here is that your REQUESTs for everything except
the low volume UNIWISC (aka MCIDAS) and GPS feeds are exceeding some
unknown threshold.  FYI: the current volume in the IDD feeds available
averages between 11 and 15 GB/hr ** average ** with peaks up to 22 GB/hr.

If splitting the feeds suggested above works, you may have to consider
splitting your NEXRAD2 feed as well.

Cheers,

Tom
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Ticket Details
===================
Ticket ID: KGJ-740033
Department: Support LDM
Priority: Normal
Status: Closed