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[LDM #KWB-851882]: pqact issues reading pq file

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  • Subject: [LDM #KWB-851882]: pqact issues reading pq file
  • Date: Tue, 13 Aug 2013 16:34:55 -0600
Kevin,

> I can certainly monitor the stats of the NFS device.  To help in your
> assessment, the NFS server is an enterprise device, and normally doesn't
> break a sweat with the amount of traffic.  We also didn't see this behavior
> before 6.11.5 when we wrote to NFS there also.

What version of the LDM was the earlier one?

> It also has a NVSRAM which
> it uses for incoming write requests, which help performance.  It's been
> able to handle multiple bonnie++ IO tests we've thrown at it.
> 
> Unfortunately moving the FILE to a non-NFS won't be an option.  EDEX --
> which runs on two different servers -- needs access to these files, and our
> only solution available at this moment is NFS.

Then we'd better figure this out.

> Is there some debugging we can turn on within pqact that might give us an
> indication of where it is slowing down? Whether it is on the write, reading
> from pq, or something in-between?

The only thing I can think of is profiling. I'll investigate this.

> Thanks again for all the help!
> 
> Kevin
> 
> --
> *Kevin P Johnson, RHCE™*
> Principal Engineer with Honors
> AWIPS Lead Systems Engineer
> Mission Operations & Services
> *Raytheon Company*
> 
> +301-495-2257   (office)
> +301-244-8575   (cell)
> address@hidden
> address@hidden
> 
> 
> 8401 Colesville Road
> Suite 800
> Silver Spring, MD 20910
> www.raytheon.com


Regards,
Steve Emmerson

Ticket Details
===================
Ticket ID: KWB-851882
Department: Support LDM
Priority: Normal
Status: Closed