Re: [ldm-users] NEXRAD2 Latency/Fragmented Data?

• To: ldm-users@xxxxxxxxxxxxxxxx
• Subject: Re: [ldm-users] NEXRAD2 Latency/Fragmented Data?
• From: Gilbert Sebenste <sebenste@xxxxxxxxxxxxxxxxxxxxx>
• Date: Mon, 30 Jul 2012 17:03:53 -0500 (CDT)

On Fri, 27 Jul 2012, Blair Trosper wrote:

I am still seeing this latency...and a lot of us are running nearly an hour
behind (Michigan Weather Systems, TAMU, and my constellation of servers) on
NEXRAD2.

Interesting. Sorry it has taken me so long to respond, but
I am gettign the feeds right on time. Blair, have you tried
something like this in your ldmd.conf:

exec    "/home/ldm/bin/pqact -f NEXRAD2 -p BZIP2/K[A-D] 
/home/ldm/etc/pqact.gempak_craft"
exec    "/home/ldm/bin/pqact -f NEXRAD2 -p BZIP2/K[E-K] 
/home/ldm/etc/pqact.gempak_craft"
exec    "/home/ldm/bin/pqact -f NEXRAD2 -p BZIP2/K[L-R] 
/home/ldm/etc/pqact.gempak_craft"
exec    "/home/ldm/bin/pqact -f NEXRAD2 -p BZIP2/K[S-Z] 
/home/ldm/etc/pqact.gempak_craft"
exec    "/home/ldm/bin/pqact -f NEXRAD2 -p BZIP2/T[A-Z] 
/home/ldm/etc/pqact.gempak_craft"
exec    "/home/ldm/bin/pqact -f NEXRAD2 -p BZIP2/P[A-Z] 
/home/ldm/etc/pqact.gempak_craft"

I saw some other servers (NSF and OU and Purdue) that were also behind by
at least 1500 seconds, and, in many cases, in excess of an hour.

I guess once that page is functoinal again (all feed tree pages seem to be
non-operational at present), we can perhaps figure out where the latency is
originating for the NEXRAD2 tree.

feed, and type:

ldmping host.somewhere.com

You should see very low ping times like:

/home/ldm% ldmping idd.tamu.edu

Jul 30 22:03:15 INFO: RESPONDING   0.074434  388   idd.tamu.edu

*******************************************************************************
Gilbert Sebenste                                                    ********
(My opinions only!)                                                  ******
Staff Meteorologist, Northern Illinois University                      ****
E-mail: sebenste@xxxxxxxxxxxxxxxxxxxxx                                  ***
web: http://weather.admin.niu.edu                                      **
Twitter: http://www.twitter.com/NIU_Weather                            **
Facebook: http://www.facebook.com/niu.weather                           *
*******************************************************************************

• Follow-Ups:
  • Re: [ldm-users] NEXRAD2 Latency/Fragmented Data?
    • From: daryl herzmann
  • Re: [ldm-users] NEXRAD2 Latency/Fragmented Data?
    • From: Gerry Creager

• References:
  • [ldm-users] NEXRAD2 Latency/Fragmented Data?
    • From: Blair Trosper
  • Re: [ldm-users] NEXRAD2 Latency/Fragmented Data?
    • From: Jeff Lake
  • Re: [ldm-users] NEXRAD2 Latency/Fragmented Data?
    • From: Blair Trosper
  • Re: [ldm-users] NEXRAD2 Latency/Fragmented Data?
    • From: Blair Trosper