Re: 20010816: Washington to UCLA IDD feed

Unidata Support wrote:
> 
> ------- Forwarded Message
> 
> >To: address@hidden
> >From: Harry Edmon <address@hidden>
> >Subject: Re[3]: Request of adding NNEXRAD feed (fwd)
> >Organization: UCAR/Unidata
> >Keywords: 200108162237.f7GMbE103488
> 
> Any ideas as to why this is happening?
> 
> >>>>> Forwarded message from James Murakami <address@hidden>
> 
> Harry,
> 
> The datastream seemed to have returned to "normal".
> I'm still not getting data from the NNEXRAD feed,
> but I do see NMC3 (floater NIDS).
> 
> My request lines are as follows--
> 
> request UNIDATA|FSL2|NMC        ".*"    sunny89.atmos.washington.edu
> request DIFAX   ".*"    sunny89.atmos.washington.edu
> request NNEXRAD "^SDUS56"       sunny89.atmos.washington.edu
> request NNEXRAD "/p(N0R|N0V)"   sunny89.atmos.washington.edu
> 
> This is the same as for the primary feed except it points
> to meteora.ucsd.edu. It's funny that I can get NNEXRAD from
> San Diego (we're still in failover as of this writing).
> Oh, well. At least I'm getting most data.
> 
> James
> 
> >
> > This is what I am seeing:
> >
> > Aug 16 19:49:40 sunny typhoon(feed)[361225]: topo:  typhoon.atmos.ucla.edu
> > NNEXRAD|DIFAX|FNEXRAD|FSL2|UNIDATA
> > Aug 16 19:49:42 sunny typhoon(feed)[361225]: RECLASS: 20010816184429.456
> TS_ENDT
> > {{FNEXRAD|FSL2|UNIDATA,  ".*"},{DIFAX,  ".*"},{NNEXRAD,  
> > "^SDUS56"},{NNEXRAD,
> > "/p(N0R|N0V)"}}
> > Aug 16 19:49:42 sunny typhoon(feed)[361225]: pq_sequence failed: I/O error
> > (errno = 5)
> > Aug 16 19:49:42 sunny typhoon(feed)[361225]: Exiting
> >
> > What does your request line look like?  Here is my allow line:
> >
> > allow   UNIDATA|FNEXRAD|DIFAX|FSL2|NNEXRAD
> >       ^(typhoon|whitney)\.atmos\.ucla\.edu$
> >
> 
> <<  End forwarded message
> 
> --
> Dr. Harry Edmon                 E-MAIL: address@hidden
> 206-543-0547                            address@hidden
> Dept of Atmospheric Sciences    FAX:    206-543-0308
> University of Washington, Box 351640, Seattle, WA 98195-1640
> 
> ------- End of Forwarded Message

Hi Harry and James,

James, were you getting NEXRAD from Harry before or are you just now
starting to request it?  If that feed has stopped flowing, did you
change anything in your request lines recently?
 
We've noticed some possible problems with... either 'allow' lines or
'request' lines and NEXRAD, aka NNEXRAD.  For example, one site feeding
from motherlode did not get the NEXRAD feed when we put an additional,
separate 'allow' line on motherlode specifically for NEXRAD, but did get
the feed when we instead added NEXRAD to the original 'allow' line.  See
http://www.unidata.ucar.edu/cgi-bin/mfs/65/4431?36#mfs.

I'm not sure if this is relevant to your situation or not.  Furthermore,
I'd be surprised if it's really NEXRAD specific.  It may simply be an
issue involving multiple allow or request lines pertaining to a single
site.  I see that James has multiple request lines and I'm just
wondering if there's a bug in how they are being handled.

So, right now this is just a FYI.  If you can confirm that there is a
problem please let me know.

I'll be away next week.  If you have any further questions, please send
email to support@unidata.

Anne
-- 
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Anne Wilson                     UCAR Unidata Program            
address@hidden                 P.O. Box 3000
                                  Boulder, CO  80307
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