Re: [thredds] NetCDF Subset Service Reference

• To: "Pan, Jerry Yun" <pany@xxxxxxxx>
• Subject: Re: [thredds] NetCDF Subset Service Reference
• From: John Caron <caron@xxxxxxxxxxxxxxxx>
• Date: Tue, 22 Jan 2008 16:02:27 -0700

Hi Jerry:

You are using an old version of the server (note the URLs start with 
/thredds/ncServer") which only
worked for grib files.

Use the new service as documented in

"http://www.unidata.ucar.edu/projects/THREDDS/tech/reference/NetcdfSubsetService.html";

You will see that the URLs start with "/thredds/ncss/grid"

Pan, Jerry Yun wrote:
> ... I tried using what I described in the previous e-mail, but when
> access the default form url for /ncServer, got an HTTP 500 error as
> below (server catalina log the same). Any idea how should I go about
> fixing this?  My TDS is publc at 
> http://daacdap-dev.ornl.gov/thredds/catalog/vemap2DailyClimate/catalog.h
> tml?dataset=vemap2USDailyClimate/vpxxTCLMxxD3i.nc.gz
> 
> 
> Tanks for help.
> 
> 
> --ERROR--
> 
> HTTP Status 500 - 
> 
> ------------------------------------------------------------------------
> --------
> 
> type Exception report
> 
> message 
> 
> description The server encountered an internal error () that prevented
> it from fulfilling this request.
> 
> exception 
> 
> java.lang.IllegalArgumentException: File must have
> _CoordinateModelBaseDate or _CoordinateModelRunDate attribute 
>       
> ucar.nc2.dt.fmrc.ForecastModelRunInventory.<init>(ForecastModelRunInvent
> ory.java:115)
>       
> ucar.nc2.dt.fmrc.ForecastModelRunInventory.open(ForecastModelRunInventor
> y.java:970)
>       thredds.servlet.NetcdfServlet.doGet(NetcdfServlet.java:155)
>       javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
>       javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
> 
> 
> note The full stack trace of the root cause is available in the Apache
> Tomcat/6.0.13 logs.
> 
> 
> ------------------------------------------------------------------------
> --------
> 
> Apache Tomcat/6.0.13
> 
>  
> 
> -----Original Message-----
> From: thredds-bounces@xxxxxxxxxxxxxxxx
> [mailto:thredds-bounces@xxxxxxxxxxxxxxxx] On Behalf Of Pan, Jerry Yun
> Sent: Thursday, January 17, 2008 10:54 AM
> To: John Caron; Roy Mendelssohn
> Cc: thredds@xxxxxxxxxxxxxxxx
> Subject: Re: [thredds] NetCDF Subset Service Reference
> 
> Hi John:
> 
> What is the current status of the NetCDF subset service?  
> 
> I read this thread of e-mails but have not firgured out how to set up
> the service - do I still use the following line:
>       <service name="subsetter" serviceType="NetcdfServer"
> base="/thredds/ncServer/" />
> In service definition, and then use the name for a dataset or
> datasetscan?  Or this has changed? Any special requirements on the
> NetCDF data?
> 
> Thanks.
> 
> -Jerry
> 
> 
> -----Original Message-----
> From: owner-thredds@xxxxxxxxxxxxxxxx
> [mailto:owner-thredds@xxxxxxxxxxxxxxxx] On Behalf Of John Caron
> Sent: Tuesday, July 10, 2007 5:14 PM
> To: Roy Mendelssohn
> Cc: thredds@xxxxxxxxxxxxxxxx
> Subject: Re: NetCDF Subset Service Reference
> 
> 
> 
> Roy Mendelssohn wrote:
>> Thanks John.  Programmatic use is what we had in mind.  Am I correct 
>> form reading over the pages that we also must have a "Data
> Description"
>> XML document.  Does that need to be in any particular place.
> 
> The "Data Description" XML document is automatically generated. We are
> still playing around with what that format should be.
> 
> 
>> Several of the links on the pages associated with that are broken,
> such as:
>>> http://motherlode.ucar.edu:9080/thredds/ncss/grid/fmrc/NCEP/NAM/CONUS
>>> _80km/NCEP-NAM-CONUS_80km_best.ncd/dataset.html
>>>
>> which is referenced from:
>>
>>> http://www.unidata.ucar.edu/projects/THREDDS/tech/interfaceSpec/GridD
>>> ataSubsetService.html
> 
> thanks
> 
>> Right now it is something we just want to experiment with on our 
>> internal server.  I expect in a short while we will have Java code 
>> that can output to other formats - perhaps it would be of some use.
> 
> which formats are you thinking?
> 
>> -Roy
> 
> ========================================================================
> =======
> To unsubscribe thredds, visit:
> http://www.unidata.ucar.edu/mailing-list-delete-form.html
> ========================================================================
> =======
> 
> _______________________________________________
> thredds mailing list
> thredds@xxxxxxxxxxxxxxxx
> For list information or to unsubscribe,  visit:
> http://www.unidata.ucar.edu/mailing_lists/ 

• References:
  • Re: [thredds] NetCDF Subset Service Reference
    • From: Pan, Jerry Yun
  • Re: [thredds] NetCDF Subset Service Reference
    • From: Pan, Jerry Yun