Re: [ldm-users] Pqact running behind

• To: "Morris, Dale A." <dmorris@xxxxxx>
• Subject: Re: [ldm-users] Pqact running behind
• From: Gerry Creager - NOAA Affiliate <gerry.creager@xxxxxxxx>
• Date: Wed, 24 Apr 2013 16:20:40 -0500

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
> _______________________________________________
> ldm-users mailing list
> ldm-users@xxxxxxxxxxxxxxxx
> For list information or to unsubscribe,  visit:
> http://www.unidata.ucar.edu/mailing_lists/
>



-- 
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)

• References:
  • [ldm-users] Pqact running behind
    • From: Morris, Dale A.