RE: Strange ldm/gempak behaviour

• To: "Arthur A. Person" <person@xxxxxxxxxxxxx>
• Subject: RE: Strange ldm/gempak behaviour
• From: Jeff Weber <jweber@xxxxxxxxxxxxxxxx>
• Date: Wed, 26 May 2004 13:15:09 -0600 (MDT)

LDM users,

rtstats is now up and running...and viewable at:

http://my.unidata.ucar.edu/content/software/idd/rtstats/index.html

Sorry for any inconvenience,

Jeff
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Jeff Weber                                    jweber@xxxxxxxx        :
Unidata Program Center                        PH:303-497-8676        :
University Corp for Atmospheric Research      3300 Mitchell Ln       :
http://www.unidata.ucar.edu/staff/jweber      Boulder,Co 80307-3000  :
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On Wed, 26 May 2004, Arthur A. Person wrote:

> Hi...
>
> It looks like the LDM stopping issue is due to rtstats hanging due to a
> problem Unidata is working on right now.
>
> As for dcmetr, I actually have it running on a second system because I've
> been having file corruption problems on my first system.  In today's case,
> dcmetr seemed hosed on the first system but okay on the second system.  I
> say this just to indicate that I too have seen dcmetr file corruption
> problems but I'm still trying to figure out what the root cause might be.
> I don't think I see it using a lot of cpu, however, nor do I ever have to
> pkill it.
>
>                                    Art.
>
> On Wed, 26 May 2004, Robert Mullenax wrote:
>
> > Yes, I have been having very similar problems with dcmetr (it would hang
> > and use all the CPU and produce corrupted .gem files).  I reported it a week
> >
> > or so ago, but never got any responses from anyone having issues.
> >
> > I have to do a pkill -9 dcmetr
> >
> >
> >
> > -----Original Message-----
> > From: owner-ldm-users@xxxxxxxxxxxxxxxx
> > [mailto:owner-ldm-users@xxxxxxxxxxxxxxxx]On Behalf Of Arthur A. Person
> > Sent: Wednesday, May 26, 2004 11:22 AM
> > To: ldm-users@xxxxxxxxxxxxxxxx
> > Subject: Strange ldm/gempak behaviour
> >
> >
> > Hi...
> >
> > Thought I'd throw this out for comments...  I just fixed (I think) a
> > strange LDM/Gempak problem:  dcmetr was core dumping many times/minute,
> > yesterday's *sao.gem file was at the 4GB limit (actually, larger
> > 4488229376 bytes...???) but today's was ~4.5M thus far.  I figured I would
> > stop/restart the ldm, but when I tried to stop it, one rpc and rtstats
> > wouldn't go down, so I had to kill them, remake the queues, and then
> > restart.  Oddly enough, I have a second ldm running on another system that
> > also decodes metars (who's files seemed okay size-wise) that, when I tried
> > to stop its ldm, it also hung similarly and I had to kill/rebuild/restart
> > it as well.
> >
> > Anyone have any similar experience or could suggest a cause?  I don't
> > recall that I've ever seen anything quite like this before.
> >
> >                                 Thanks.
> >
> >                                   Art.
> >
>
> --
> Arthur A. Person
> Research Assistant, System Administrator
> Penn State Department of Meteorology
> email:  person@xxxxxxxxxxxxxxxxxx, phone:  814-863-1563
>

• References:
  • RE: Strange ldm/gempak behaviour
    • From: Arthur A. Person