Re: [ldm-users] Contents ldm-users Digest, Vol 51, Issue 17

• To: Work Unidata LDM Users <ldm-users@xxxxxxxxxxxxxxxx>
• Subject: Re: [ldm-users] Contents ldm-users Digest, Vol 51, Issue 17
• From: Paul Kirkwood - NOAA Federal <paul.kirkwood@xxxxxxxx>
• Date: Thu, 25 Apr 2013 19:17:27 +0000

2013-04-25:

Hi Dale,

We have had a similar issue with data request on our ingest side.  What we
found was a corrupt ldm queue on our upstream and downstream system.

If you can, I recommend deleting and remaking the queue on both the
upstream and downstream ldm queues.  Just a thought.

Thanks,
Paul Kirkwood - NOAA Federal
Chief, Technology Infusion Branch (TIB)
Science and Technology Services Division
Southern Region Headquarters
Email: Paul.Kirkwood@xxxxxxxx
Phone: 817-978-1100 x.145
http://www.srh.noaa.gov/ridge2/
"Science Is Organized Knowledge" - Library of Congress



On Thu, Apr 25, 2013 at 6:00 PM, <ldm-users-request@xxxxxxxxxxxxxxxx> wrote:

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>    1. Re: Pqact running behind (Gerry Creager - NOAA Affiliate)
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>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 24 Apr 2013 16:20:40 -0500
> From: Gerry Creager - NOAA Affiliate <gerry.creager@xxxxxxxx>
> To: "Morris, Dale A." <dmorris@xxxxxx>
> Cc: "andre.reddington@xxxxxxxx" <andre.reddington@xxxxxxxx>,
>         "ldm-users@xxxxxxxxxxxxxxxx" <ldm-users@xxxxxxxxxxxxxxxx>,
>         "Tiffany.Meyer" <tiffany.meyer@xxxxxxxx>
> Subject: Re: [ldm-users] Pqact running behind
> Message-ID:
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>
> Dale, what are your upstream hosts?
>
> gerry
>
>
> On Wed, Apr 24, 2013 at 12:13 PM, Morris, Dale A. <dmorris@xxxxxx> wrote:
>
> > We are having an unusual problem with LDM.  We are running the AWIPS-2
> > version of LDM that is redistributed by Raytheon and the NWS (the
> versions
> > are based on ldm-6.8.1).
> >
> > We have an upstream LDM box that feeds two downstream LDMs with similar
> > pqact.conf and ldmd.conf files.  One box simply writes files out for an
> > archive, while the other box writes data in the same structure, but also
> is
> > connected to AWIPS-2 (using edexBridge) sending messages for  ingest and
> > processing.  When running a pqutil command (e.g., pqutil -w -f NIMAGE
> > ldm.pq) on both downstream boxes we verify that each product queue is
> > updated very nearly simultaneously.  However, we see one box write out
> its
> > data instantaneously while the other may be delayed by 20 or more
> minutes .
> >  Yesterday the ldm that fed AWIPS-2 was behind, and today the archive box
> > is behind.  We made a hardware configuration change on the AWIPS-2 box
> > today but no change whatsoever was made to the archive box.
> >
> > Does anyone have any ideas what could cause this behavior?
> >
> > Thanks,
> >
> > Dale Morris
> > CIMMS/OU
> > NWS/Warning Decision Training Branch
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>
>
> --
> Gerry Creager
> NSSL/CIMMS
> 405.325.6371
> ++++++++++++++++++++++
> ?Big whorls have little whorls,
> That feed on their velocity;
> And little whorls have lesser whorls,
> And so on to viscosity.?
> Lewis Fry Richardson (1881-1953)
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> End of ldm-users Digest, Vol 51, Issue 17
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