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[THREDDS #ODE-662564]: OpenDAP Access Issues



Erik,

I just restarted the server, and have hopefully worked around the problem that 
keeps bringing it down. Please go ahead and beat on it and let me know if you 
run into more problems.

Thanks!

Ryan

> That URL is what the code is trying to access, and has been successful
> previously in doing so similar urls in the past. Going back through my
> code output, that last OpenDAP URL that was successfully accessed
> earlier this week was:
> 
> 'OPENDAP':
> 'http://thredds-aws.unidata.ucar.edu/thredds/dodsC/nexrad/level2/S3/2016/08/06/KSGF/KSGF20160806_025139_V06'
> 
> After this instance, the server access errors came up. Looking closely
> at the code output, the first couple times it failed it gave a slightly
> different error than the one I previously sent you:
> 
> {'OPENDAP':
> 'http://thredds-aws.unidata.ucar.edu/thredds/dodsC/nexrad/level2/S3/2016/08/25/KSHV/KSHV20160825_203811_V06',
> 'HTTPServer':
> 'http://thredds-aws.unidata.ucar.edu/thredds/fileServer/nexrad/level2/S3/2016/08/25/KSHV/KSHV20160825_203811_V06',
> 'CdmRemote':
> 'http://thredds-aws.unidata.ucar.edu/thredds/cdmremote/nexrad/level2/S3/2016/08/25/KSHV/KSHV20160825_203811_V06'}
> syntax error, unexpected WORD_STRING, expecting WORD_WORD
> context: Error { code = 500; message =
> "java.nio.channels.ClosedChannelException"^;};
> Traceback (most recent call last):
> File "grab_data_threads.py", line 162, in <module>
> main()
> File "grab_data_threads.py", line 33, in main
> plot_radar_fig(lat_ob, lon_ob, date, path)
> File "grab_data_threads.py", line 73, in plot_radar_fig
> radar_data = pyart.io.read_nexrad_cdm(ds.access_urls['OPENDAP'])
> File
> "/Users/enielsen/anaconda/lib/python2.7/site-packages/pyart/io/nexrad_cdm.py",
> line 92, in read_nexrad_cdm
> dataset = netCDF4.Dataset(filename)
> File "netCDF4/_netCDF4.pyx", line 1795, in
> netCDF4._netCDF4.Dataset.__init__ (netCDF4/_netCDF4.c:12271)
> RuntimeError: NetCDF: DAP server error
> 
> I am not sure if that will provide any additional information. The
> http://thredds-aws.unidata.ucar.edu/thredds/catalog.html url is
> accessible from my browser, but that is I think only because I am at a
> University. If I remember correctly, this server was only accessible to
> people with an University IP or something. Hopefully this sheds some
> additional light on the problem...
> 
> Cheers,
> Erik
> 
> On 9/7/17 2:21 PM, Unidata THREDDS Support wrote:
> > That url does not seem to work. In fact thredds-aws does not
> > appear to be up at all. Sure it wasn't something like thredds.ucar.edu?
> >
> > =Dennis Heimbigner
> >    Unidata
> >
> >
> > Ticket Details
> > ===================
> > Ticket ID: ODE-662564
> > Department: Support THREDDS
> > Priority: Normal
> > Status: Open
> > ===================
> > NOTE: All email exchanges with Unidata User Support are recorded in the 
> > Unidata inquiry tracking system and then made publicly available through 
> > the web.  If you do not want to have your interactions made available in 
> > this way, you must let us know in each email you send to us.
> >
> >
> 
> 
> --
> Erik Nielsen
> Graduate Research Assistant
> Department of Atmospheric Science
> Colorado State University
> 
> 

Ticket Details
===================
Ticket ID: ODE-662564
Department: Support THREDDS
Priority: Normal
Status: Closed
===================
NOTE: All email exchanges with Unidata User Support are recorded in the Unidata 
inquiry tracking system and then made publicly available through the web.  If 
you do not want to have your interactions made available in this way, you must 
let us know in each email you send to us.



NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.