[thredds] WCS GetCoverage request returns an Unknown problem service exception

• To: "thredds@xxxxxxxxxxxxxxxx" <thredds@xxxxxxxxxxxxxxxx>
• Subject: [thredds] WCS GetCoverage request returns an Unknown problem service exception
• From: "Wright, Simon M." <smw@xxxxxxxxx>
• Date: Thu, 2 Oct 2014 14:48:08 +0000

Dear All

We have setup a THREDDS gridded data server and I'm trying to investigate the 
THREDDS WCS which we have enabled in the threddsConfig.xml file.  We are using 
THREDDS version 4.3.20 - 20131125.1409.

I can successfully perform WCS GetCapabilities and DescribeCoverage requests 
for a netCDF file but when I attempt a GetCoverage request I'm not getting any 
data - either as GeoTIFF or NetCDF3 format - returned.  When I check the URL 
request under the URLdump tab of the (incredibly useful) ToolsUI software I'm 
getting the following response:

Request Headers2 =
  Accept-Encoding: gzip,deflate
  User-Agent: ToolsUI v4.5
Status = 400 HTTP/1.1 400 Bad Request
Status Line = HTTP/1.1 400 Bad Request
Response Headers =
  Server: Apache-Coyote/1.1
  Content-Type: application/vnd.ogc.se_xml;charset=ISO-8859-1
  Transfer-Encoding: chunked
  Date: Thu, 02 Oct 2014 14:39:17 GMT
  Connection: close

ResponseBody---------------
<?xml version="1.0" encoding="UTF-8"?>
<ServiceExceptionReport xmlns="http://www.opengis.net/ogc"; version="1.2.0">
  <ServiceException>Unknown problem</ServiceException>
</ServiceExceptionReport>
Can anybody provide any help with my attempt to perform a successful WCS 
GetCoverage request?

There was a question posted to the THREDDS mailing list 16 December 2013 about 
the maximum file size for a THREDDS WCS GetCoverage response, but as far as I 
can tell this query has remained unanswered.  I don't know if this issue was 
solved or is relevant to my situation.



Many thanks, best wishes, Simon.



Simon Wright

GIS Application Developer
Application Development Group
Shore Section
CEH Lancaster
Lancaster Environment Centre
Library Avenue
Bailrigg
Lancaster
LA1 4AP

Telephone: 01524 595857

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