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From Louis Leung <louis.le...@sun.com>
Subject exceptions during load testing
Date Thu, 19 Jun 2003 21:37:46 GMT
Hi all,

I did some load testing with my struts application (with tomcat) with
around 40 simulated concurrent users.  The following exception occurs in
the tomcat log for the app.  When there is only one or a few users, this
exception doesn't pop up.

2003-06-19 14:34:38 StandardWrapperValve[action]: Servlet.service() for
servlet action threw exception
javax.servlet.ServletException: BeanUtils.populate
 at org.apache.struts.util.RequestUtils.populate(RequestUtils.java:1190)

 at
org.apache.struts.action.RequestProcessor.processPopulate(RequestProcessor.java:821)

 at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:254)

 at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1480)
 at
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:524)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
 at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)

 at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)

 at
com.sun.ace.runtime.client.jspbean.AceGenericFilter.doFilter(AceGenericFilter.java:49)

 at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)

 at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)

 at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)

 at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)

 at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)

 at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
 at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)

 at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)

 at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)

 at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
 at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)

 at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)

 at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)

 at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)

 at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)

 at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)

 at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)

 at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)

 at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
 at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)

 at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)

 at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)

 at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
 at
org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
 at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:594)

 at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392)

 at
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)

 at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619)

 at java.lang.Thread.run(Thread.java:536)
----- Root Cause -----
java.lang.IllegalArgumentException: No bean specified
 at
org.apache.commons.beanutils.PropertyUtils.getPropertyDescriptor(PropertyUtils.java:837)

 at
org.apache.commons.beanutils.BeanUtils.setProperty(BeanUtils.java:934)
 at org.apache.commons.beanutils.BeanUtils.populate(BeanUtils.java:808)
 at org.apache.struts.util.RequestUtils.populate(RequestUtils.java:1188)

 at
org.apache.struts.action.RequestProcessor.processPopulate(RequestProcessor.java:821)

 at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:254)

 at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1480)
 at
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:524)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
 at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)

 at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)

 at
com.sun.ace.runtime.client.jspbean.AceGenericFilter.doFilter(AceGenericFilter.java:49)

 at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)

 at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)

 at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)

 at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)

 at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)

 at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
 at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)

 at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)

 at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)

 at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
 at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)

 at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)

 at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)

 at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)

 at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)

 at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)

 at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)

 at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)

 at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
 at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)

 at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)

 at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)

 at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
 at
org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
 at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:594)

 at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392)

 at
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)

 at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619)

 at java.lang.Thread.run(Thread.java:536)




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