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[LDM #ZOC-298338]: Missing data problems

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  • Subject: [LDM #ZOC-298338]: Missing data problems
  • Date: Fri, 15 Jun 2007 13:46:04 -0600
Lou,
 
> It looks like the data we're receiving on ldm1 for this region is old
> data.  Here's an example.  As you can see this data is (48-15=33)
> minutes old which appears as down by most people even though its just
> very high latency.
> 
> > Jun 15 15:48:06 pqutil INFO:    11397 20070615150259.395 NEXRAD2 872017  
> > L2-BZIP2/KBMX/20070615150156/872/17

I'm seeing up-to-date data-products from the Southern Region being
received by NWS-LDM1.  Here's and example of what the SRHQ is
receiving:

bash-3.00$ notifyme -vl- -f NEXRAD2 -h 216.38.80.15
Jun 15 19:37:35 notifyme[12736] NOTE: Starting Up: 216.38.80.15: 
20070615193735.087 TS_ENDT {{NEXRAD2,  ".*"}}
Jun 15 19:37:35 notifyme[12736] NOTE: LDM-5 desired product-class: 
20070615193735.087 TS_ENDT {{NEXRAD2,  ".*"}}
Jun 15 19:37:35 notifyme[12736] NOTE: NOTIFYME(216.38.80.15): OK
Jun 15 19:37:42 notifyme[12736] INFO:     4647 20070615193735.394 NEXRAD2 
185045  L2-BZIP2/KMRX/20070615193448/185/45
Jun 15 19:37:42 notifyme[12736] INFO:    23522 20070615193735.155 NEXRAD2 
327019  L2-BZIP2/KAMA/20070615193508/327/19
Jun 15 19:37:42 notifyme[12736] INFO:    12686 20070615193735.423 NEXRAD2 
539048  L2-BZIP2/KMAF/20070615193438/539/48
...

and here's an example of what the LDM on NWS-LDM1 is receiving
from the southern region (I used the command above to get a list
of station identifiers):

bash-3.00$ ldmadmin watch -p 'KMLB|KAMX|KSRX|KLBB|KMAF|KGWX|KHTX|KSHV|KSJT|KTLH'
Jun 15 19:38:23 pqutil INFO:    12250 20070615193815.980 NEXRAD2 124046  
L2-BZIP2/KCAE/20070615193520/124/46
Jun 15 19:38:23 pqutil INFO:    17211 20070615193815.920 NEXRAD2 28008  
L2-BZIP2/KJAX/20070615193719/28/8
Jun 15 19:38:23 pqutil INFO:    16269 20070615193815.967 NEXRAD2 26021  
L2-BZIP2/KLTX/20070615193535/26/21

Incidentally,  the LDM configuration-file, etc/ldmd.conf, 
executes the "pqact" utility, whose configuration-file,
etc/pqact.conf, contains some actions --- but not for
radar data.  If you're not going to receive and data on
which "pqact" should act, then you should comment-out
the "pqact" EXEC entry in the LDM configuration-file to
reduce the load on the CPU.

Regards,
Steve Emmerson

Ticket Details
===================
Ticket ID: ZOC-298338
Department: Support LDM
Priority: Urgent
Status: Closed