Hi Daniele-
Will do.
I followed the polyphemus example from the multidim training, which also
uses a Double in the config. The only difference is that I had to name my
attribute "z" in the indexer.xml for some reason, where the polyphemus
multidim training somehow uses "elevation". I could not get that to work
with my dataset.
I just changed indexer.xml and polyphemus-test.xml Double to Float in the
polyphemus multidim training and it produces the same error when I try to
access netcdf and netcdf4. WMS works fine. This is a well-known example and
might simplify replicating the problem.
Here is my request url:
http://nnew-vm9:8089/geoserver/RAL_WCS/wcs?service=WCS&version=2.0.0&request=GetCoverage&coverageId=RAL_WCS:NO2&subset=time(
"2013-03-02T13:00:00.000Z")&subset=elevation("10")&format=application/x-netcdf4
Simpler requests cause the same response, but take a lot longer.
And response:
This XML file does not appear to have any style information associated with
it. The document tree is shown below.
<ows:ExceptionReport xmlns:xs="http://www.w3.org/2001/XMLSchema"; xmlns:ows="
http://www.opengis.net/ows/2.0"; xmlns:xsi="
http://www.w3.org/2001/XMLSchema-instance"; version="2.0.0"
xsi:schemaLocation="http://www.opengis.net/ows/2.0
http://schemas.opengis.net/ows/2.0/owsExceptionReport.xsd";>
<script id="tinyhippos-injected"/>
<ows:Exception exceptionCode="NoApplicableCode">
<ows:ExceptionText>
java.lang.IllegalArgumentException: illegal dataType: String not supported
in netcdf-3 illegal dataType: String not supported in netcdf-3 []
</ows:ExceptionText>
</ows:Exception>
</ows:ExceptionReport>
-Paddy.
On Fri, Apr 15, 2016 at 11:44 AM, Daniele Romagnoli <
daniele.romagn...@geo-solutions.it> wrote:
> Hi Paddy,
> if you can open a JIRA containing sample data, config files and requests
> needed to replicate the issue, we could investigate on that and check the
> problem through a debug session.
>
> I'm wondering if the z dimension has been configured/recognized as
> elevation / custom dimension.
>
> Please, let us know.
> Cheers,
> Daniele
>
> On Fri, Apr 15, 2016 at 5:19 PM, Padhrig Mccarthy <pa...@ucar.edu> wrote:
>
>> Hi-
>>
>> This is report of a recent discovery I made after repeatedly banging my
>> head against the wall, so I thought I should write it up here to help
>> future users. Basically, you MUST define your elevation dimension as a
>> Double in your schema (using ImageMosaic indexer.xml), even if your NetCDF
>> files define the z dimension as a float. Otherwise you get exceptions when
>> making WCS requests that say "illegal dataType: String not supported in
>> netcdf-3"
>>
>> I was getting the following error when accessing my NetCDF-based
>> ImageMosaic with a request (to a private host) such as this:
>>
>> http://nnew-vm9:8089/geoserver/RAL_WCS/wcs?service=WCS&version=2.0.0&request=GetCoverage&coverageId=RAL_WCS:CAT_GPML_GTG&subset=time(
>> "2016-04-14T02:00:00.000Z")&subset=elevation("13.411")&subset=LEADSECONDS("0")&format=application/x-netcdf4
>> (LEADSECONDS is a custom variable I've defined for our ImageMosaic)
>>
>> Error returned in browser (similar in GeoServer logs):
>> <ows:Exception exceptionCode="NoApplicableCode">
>> <ows:ExceptionText>
>> java.lang.IllegalArgumentException: illegal dataType: String not
>> supported in netcdf-3 illegal dataType: String not supported in netcdf-3 []
>> </ows:ExceptionText>
>> </ows:Exception>
>>
>> FYI, a the equivalent WMS request worked fine:
>>
>> http://nnew-vm9:8089/geoserver/RAL_WCS/wms?service=WMS&version=1.1.0&request=GetMap&layers=RAL_WCS:CAT_GPML_GTG&styles=gtg&bbox=-120.0,22.0,-60.0,50.0&width=768&height=573&srs=EPSG:4326&format=image/png&time=2016-04-14T02:00:00.000Z&elevation=13.411&DIM_LEADSECONDS=0
>>
>> When I changed the schema config from this:
>> <schema name="default" >
>>
>> <attributes>the_geom:Polygon,location:String,imageindex:Integer,time:java.util.Date,z:Float,fileDate:java.util.Date,leadSeconds:Integer</attributes>
>> </schema>
>>
>> to this:
>> <schema name="default" >
>>
>> <attributes>the_geom:Polygon,location:String,imageindex:Integer,time:java.util.Date,z:Double,fileDate:java.util.Date,leadSeconds:Integer</attributes>
>> </schema>
>> the request started to work, returning a NetCDF file, instead of the
>> misleading exception text.
>>
>> Also FYI, the NetCDF file headers look like this (note the float data
>> type for dimension z):
>> /d1/nnew/GeoServer/8089_server/GTG_index: ncdump -h
>> ../GTG_granules/lambert_sample_20160414T020000000Z_l_0000000.nc
>>
>> netcdf lambert_sample_20160414T020000000Z_l_0000000 {
>>
>> dimensions:
>>
>> time = 1 ;
>>
>> x = 451 ;
>>
>> y = 337 ;
>>
>> z = 46 ;
>>
>> variables:
>>
>> double time(time) ;
>>
>> time:standard_name = "time" ;
>>
>> time:long_name = "data valid time" ;
>>
>> time:units = "seconds since 1970-01-01T00:00:00Z" ;
>>
>> time:calendar = "gregorian" ;
>>
>> time:axis = "T" ;
>>
>> time:reference_date = "2016-04-14T02:00:00Z" ;
>>
>> float x(x) ;
>>
>> x:standard_name = "projection_x_coordinate" ;
>>
>> x:units = "km" ;
>>
>> x:axis = "X" ;
>>
>> float y(y) ;
>>
>> y:standard_name = "projection_y_coordinate" ;
>>
>> y:units = "km" ;
>>
>> y:axis = "Y" ;
>>
>> float lat(y, x) ;
>>
>> lat:standard_name = "latitude" ;
>>
>> lat:units = "degrees_north" ;
>>
>> float lon(y, x) ;
>>
>> lon:standard_name = "longitude" ;
>>
>> lon:units = "degrees_east" ;
>>
>> float z(z) ;
>>
>> z:standard_name = "altitude" ;
>>
>> z:long_name = "Specific altitude above mean sea level" ;
>>
>> z:units = "km" ;
>>
>> z:positive = "up" ;
>>
>> z:axis = "Z" ;
>>
>> int grid_mapping ;
>>
>> grid_mapping:grid_mapping_name = "lambert_conformal_conic" ;
>>
>> grid_mapping:longitude_of_central_meridian = -95.f ;
>>
>> grid_mapping:latitude_of_projection_origin = 25.f ;
>>
>> grid_mapping:standard_parallel = 25.f ;
>>
>> float CAT_GPML(time, z, y, x) ;
>>
>> CAT_GPML:valid_min = 0.f ;
>>
>> CAT_GPML:valid_max = 0.5949897f ;
>>
>> CAT_GPML:_FillValue = -9999.f ;
>>
>> CAT_GPML:long_name = "Clear Air Turbulence (CAT)" ;
>>
>> CAT_GPML:units = "%" ;
>>
>> CAT_GPML:coordinates = "lon lat" ;
>>
>> CAT_GPML:grid_mapping = "grid_mapping" ;
>>
>>
>> // global attributes:
>>
>> :Conventions = "CF-1.6" ;
>>
>> :source = "US NWS - NCEP - Aviation Weather Center" ;
>>
>> :title = "Rapid Refresh (RAP)" ;
>>
>> :history = "Converted to NetCDF from Grib2 with Grib2toNc from NCAR-RAL."
>> ;
>>
>> }
>>
>>
>>
>>
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>
>
> --
> ==
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> ==
>
> Ing. Daniele Romagnoli
> Senior Software Engineer
>
> GeoSolutions S.A.S.
> Via di Montramito 3/A
> 55054 Massarosa (LU)
> Italy
> phone: +39 0584 962313
> fax: +39 0584 1660272
>
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