[thredds] NetCDF Subset Service

• To: thredds@xxxxxxxxxxxxxxxx
• Subject: [thredds] NetCDF Subset Service
• From: manoch <manoch@xxxxxxxxxxxxxxxxxxx>
• Date: Wed, 27 Jan 2021 08:43:47 -0800

Hello,

I have installed TDS (unidata/thredds-docker:5.0-SNAPSHOT). According to the 
NetCDF Subset Service (NCSS) Reference  
(https://www.unidata.ucar.edu/software/thredds/v5.0/_book/tds/reference/services/NetcdfSubsetServiceReference.html
 
<https://www.unidata.ucar.edu/software/thredds/v5.0/_book/tds/reference/services/NetcdfSubsetServiceReference.html>)
 I should be able to single-point request by specifying its latitude and 
longitude. However, when I try to do that, it throws the following exception. I 
know that data exists for that point and if I set north=south=65 and 
east=west=-165, it returns data as a netCDF file. But my goal is to get CSV 
format. Am I doing something wrong or do I need additional TDS configuration?

I will appreciate and help.

Thank you,

—manoch


thredds/ncss/grid/all/Alaska-CVM-AKAN2020-1.0.nc?var=vp&latitude=65.0&longitude=-165.0&horizStride=1&time=2003-09-25T00:00:00Z&vertCoord=&accept=netcdf3


Throwable exception handled : java.lang.NullPointerException
        at 
ucar.nc2.ft2.coverage.writer.CoverageAsPoint.&lt;init&gt;(CoverageAsPoint.java:92)
        at 
thredds.server.ncss.controller.NcssGridController.handleRequestGridAsPoint(NcssGridController.java:186)
        at 
thredds.server.ncss.controller.NcssGridController.handleRequest(NcssGridController.java:92)
        at sun.reflect.GeneratedMethodAccessor89.invoke(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190)
        at 
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)
        at 
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105)
        at 
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:879)
        at 
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793)
        at 
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
        at 
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040)
        at 
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)
        at 
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
        at 
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:626)
        at 
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at 
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at 
org.apache.catalina.filters.CorsFilter.handleNonCORS(CorsFilter.java:364)
        at org.apache.catalina.filters.CorsFilter.doFilter(CorsFilter.java:170)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at 
org.apache.catalina.filters.HttpHeaderSecurityFilter.doFilter(HttpHeaderSecurityFilter.java:126)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320)
        at 
thredds.servlet.filter.RequestBracketingLogMessageFilter.doFilter(RequestBracketingLogMessageFilter.java:50)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
        at 
thredds.servlet.filter.RequestCORSFilter.doFilterInternal(RequestCORSFilter.java:45)
        at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
        at 
thredds.servlet.filter.RequestQueryFilter.doFilter(RequestQueryFilter.java:90)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
        at 
thredds.servlet.filter.HttpHeadFilter.doFilter(HttpHeadFilter.java:47)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
        at 
org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215)
        at 
org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178)
        at 
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:358)
        at 
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:271)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at 
org.apache.logging.log4j.web.Log4jServletFilter.doFilter(Log4jServletFilter.java:71)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
        at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
        at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:544)
        at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143)
        at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
        at 
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:690)
        at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
        at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
        at 
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:616)
        at 
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
        at 
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:831)
        at 
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1634)
        at 
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at 
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
        at java.lang.Thread.run(Thread.java:748)