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Hi Heiko, I'm not having any luck duplicating this problem here. The IllegalStateException-s appear to be occurring at the same time as the empty responses. Interesting that it is happening in the JSP engine; in the full stack trace you can see that the request has already gone through Spring and the TDS/ncWMS code (I've included a more complete snip of the stack trace below). I'm not seeing anything in the TDS/ncWMS code that commits the respones before it hands the ModelAndView to Spring for the hand off to the JSP engine. What version of Tomcat and Java are you running? I'm not sure if the NullPointerException from geotools during startup is related. However, it does sound familiar but I couldn't find any thing TDS/ncWMS related through Google or in our support archives. Does this sound familiar to anyone? Ethan More of the stack trace: > Feb 15, 2010 4:59:58 PM org.apache.jasper.runtime.JspFactoryImpl > internalGetPageContext > SEVERE: Exception initializing page context > java.lang.IllegalStateException: Cannot create a session after the response > has been committed > at org.apache.catalina.connector.Request.doGetSession(Request.java:2313) > at org.apache.catalina.connector.Request.getSession(Request.java:2074) > at > org.apache.catalina.connector.RequestFacade.getSession(RequestFacade.java:833) > at > javax.servlet.http.HttpServletRequestWrapper.getSession(HttpServletRequestWrapper.java:216) > at > org.apache.catalina.core.ApplicationHttpRequest.getSession(ApplicationHttpRequest.java:544) > at > org.apache.catalina.core.ApplicationHttpRequest.getSession(ApplicationHttpRequest.java:493) > at > org.apache.jasper.runtime.PageContextImpl._initialize(PageContextImpl.java:146) > at > org.apache.jasper.runtime.PageContextImpl.initialize(PageContextImpl.java:124) > at > org.apache.jasper.runtime.JspFactoryImpl.internalGetPageContext(JspFactoryImpl.java:107) > at > org.apache.jasper.runtime.JspFactoryImpl.getPageContext(JspFactoryImpl.java:63) > at > org.apache.jsp.WEB_002dINF.jsp.wms.capabilities_005fxml_jsp._jspService(capabilities_005fxml_jsp.java:73) > at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) > at > org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374) > at > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342) > at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) > at > org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646) > at > org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:551) > at > org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:488) > at > org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:231) > at > org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:252) > at > org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1173) > at > org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:901) > at > org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:809) > at > org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571) > at > org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:501) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) On 2/15/2010 10:34 AM, Heiko Klein wrote: > Hi, > > after running ncWMS on Thredds 4.1.3 (linux) for a while, the > GetCapabilites document is sometimes empty, i.e. > > $ GET > 'http://dev-vm188/thredds/wms/osisaf/met.no/ice/ice_conc_nh_200911291200_CF.nc?service=WMS&version=1.3.0&request=GetCapabilities'|wc > 6065 3509 155870 > $ GET > 'http://dev-vm188/thredds/wms/osisaf/met.no/ice/ice_conc_nh_200911291200_CF.nc?service=WMS&version=1.3.0&request=GetCapabilities'|wc > 6065 3509 155870 > $ GET > 'http://dev-vm188/thredds/wms/osisaf/met.no/ice/ice_conc_nh_200911291200_CF.nc?service=WMS&version=1.3.0&request=GetCapabilities'|wc > 2 1 5 > $ GET > 'http://dev-vm188/thredds/wms/osisaf/met.no/ice/ice_conc_nh_200911291200_CF.nc?service=WMS&version=1.3.0&request=GetCapabilities'|wc > 2 1 5 > $ GET > 'http://dev-vm188/thredds/wms/osisaf/met.no/ice/ice_conc_nh_200911291200_CF.nc?service=WMS&version=1.3.0&request=GetCapabilities'|wc > 2 1 5 > $ GET > 'http://dev-vm188/thredds/wms/osisaf/met.no/ice/ice_conc_nh_200911291200_CF.nc?service=WMS&version=1.3.0&request=GetCapabilities'|wc > 6065 3509 155870 > > > This happened at approx 17:01. The access.log file shows: > > 157.249.26.172 - - [15/Feb/2010:17:01:00 +0000] "GET > /thredds/wms/osisaf/met.no/ice/ice_conc_nh_200911291200_CF.nc?service=WMS&version=1.3.0&request=GetCapabilities > HTTP/1.1" 200 - "-" "lwp-request/2.08" > 157.249.26.172 - - [15/Feb/2010:17:01:01 +0000] "GET > /thredds/wms/osisaf/met.no/ice/ice_conc_nh_200911291200_CF.nc?service=WMS&version=1.3.0&request=GetCapabilities > HTTP/1.1" 200 - "-" "lwp-request/2.08" > 157.249.26.172 - - [15/Feb/2010:17:01:01 +0000] "GET > /thredds/wms/osisaf/met.no/ice/ice_conc_nh_200911291200_CF.nc?service=WMS&version=1.3.0&request=GetCapabilities > HTTP/1.1" 200 - "-" "lwp-request/2.08" > 157.249.26.172 - - [15/Feb/2010:17:01:06 +0000] "GET > /thredds/wms/osisaf/met.no/ice/ice_conc_nh_200911291200_CF.nc?service=WMS&version=1.3.0&request=GetCapabilities > HTTP/1.1" 200 155870 "-" "lwp-request/2.08" > 157.249.26.172 - - [15/Feb/2010:17:01:08 +0000] "GET > /thredds/wms/osisaf/met.no/ice/ice_conc_nh_200911291200_CF.nc?service=WMS&version=1.3.0&request=GetCapabilities > HTTP/1.1" 200 155870 "-" "lwp-request/2.08" > 157.249.26.172 - - [15/Feb/2010:17:01:08 +0000] "GET > /thredds/wms/osisaf/met.no/ice/ice_conc_nh_200911291200_CF.nc?service=WMS&version=1.3.0&request=GetCapabilities > HTTP/1.1" 200 - "-" "lwp-request/2.08" > > > The catalina.out file says very often: > Feb 15, 2010 5:00:00 PM org.apache.jasper.runtime.JspFactoryImpl > internalGetPage > Context > SEVERE: Exception initializing page context > java.lang.IllegalStateException: Cannot create a session after the > response has > been committed > at > org.apache.catalina.connector.Request.doGetSession(Request.java:2313) > at > org.apache.catalina.connector.Request.getSession(Request.java:2074) > at > org.apache.catalina.connector.RequestFacade.getSession(RequestFacade. > java:833) > ... > > There is another NullPointerException during startup: > Feb 15, 2010 4:01:32 PM org.geotools.util.WeakCollectionCleaner remove > WARNING: NullPointerException > java.lang.NullPointerException > at > org.geotools.referencing.cs.DefaultCoordinateSystemAxis.hashCode(Defa > ultCoordinateSystemAxis.java:1250) > at > org.geotools.referencing.cs.AbstractCS.hashCode(AbstractCS.java:642) > at > org.geotools.referencing.crs.AbstractCRS.hashCode(AbstractCRS.java:17 > 8) > > which might be due to 'jai' installation, which ncWMS complained about > previously. > > I'm attaching the log-files. > > > > Best regards, > > Heiko > > > > _______________________________________________ > thredds mailing list > thredds@xxxxxxxxxxxxxxxx > For list information or to unsubscribe, visit: > http://www.unidata.ucar.edu/mailing_lists/
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