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MathGroup Archive 2007

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Re: webMathematica problem

  • To: mathgroup at smc.vnet.net
  • Subject: [mg72498] Re: [mg72467] webMathematica problem
  • From: Chris Williamson <chrisw at wolfram.com>
  • Date: Wed, 3 Jan 2007 01:07:04 -0500 (EST)
  • References: <200612301027.FAA21522@smc.vnet.net>

This generally happens because it cannot find Mathematica or it can't 
start a kernel due to a licensing issue.  You should check to make sure 
that the proper path is being used in MSP.conf.  If so you check to make 
sure there are not multiple kernels running that would prevent you from 
launching a kernel in webMathematica.

Chris

David Tann wrote:
> Hi there,
>
> I can't run my webMathematica due the following problem? 
> Can anyone tell me the cause and solution to the problem? 
>
> Thanks,
> David
>
>
> HTTP Status 500 - 
> ________________________________________
> type Exception report
> message 
> description The server encountered an internal error () that prevented it
> from fulfilling this request.
> exception 
> javax.servlet.ServletException: A Kernel cannot be activated.
> 	
> org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextI
> mpl.java:825)
> 	
> org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImp
> l.java:758)
> 	org.apache.jsp.Examples.Plot_jsp._jspService(Plot_jsp.java:111)
> 	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
> 	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> 	
> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:3
> 24)
> 	
> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
> 	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
> 	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> root cause 
> javax.servlet.jsp.JspTagException: A Kernel cannot be activated.
> 	com.wolfram.webmathematica.tags.AllocateKernel.doStartTag(Unknown
> Source)
> 	
> org.apache.jsp.Examples.Plot_jsp._jspx_meth_msp_allocateKernel_0(Plot_jsp.ja
> va:128)
> 	org.apache.jsp.Examples.Plot_jsp._jspService(Plot_jsp.java:91)
> 	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
> 	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> 	
> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:3
> 24)
> 	
> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
> 	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
> 	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> note The full stack trace of the root cause is available in the Apache
> Tomcat/5.0.28 logs.
> ________________________________________
> Apache Tomcat/5.0.28
>
>
>   


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