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From "Robert Joseph Evans (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-3930) The AM page for a Reducer that has not been launched causes an NPE
Date Mon, 27 Feb 2012 22:29:48 GMT
The AM page for a Reducer that has not been launched causes an NPE
------------------------------------------------------------------

                 Key: MAPREDUCE-3930
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3930
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: mrv2
    Affects Versions: 0.23.1, 0.23.2
            Reporter: Robert Joseph Evans
            Assignee: Robert Joseph Evans


{noformat}
java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.hadoop.yarn.webapp.Dispatcher.service(Dispatcher.java:150)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
        at com.google.inject.servlet.ServletDefinition.doService(ServletDefinition.java:263)
        at com.google.inject.servlet.ServletDefinition.service(ServletDefinition.java:178)
        at com.google.inject.servlet.ManagedServletPipeline.service(ManagedServletPipeline.java:91)
        at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:62)
        at com.sun.jersey.spi.container.servlet.ServletContainer.doFilter(ServletContainer.java:900)
        at com.sun.jersey.spi.container.servlet.ServletContainer.doFilter(ServletContainer.java:834)
        at com.sun.jersey.spi.container.servlet.ServletContainer.doFilter(ServletContainer.java:795)
        at com.google.inject.servlet.FilterDefinition.doFilter(FilterDefinition.java:163)
        at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:58)
        at com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:118)
        at com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:113)
        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
        at org.apache.hadoop.yarn.server.webproxy.amfilter.AmIpFilter.doFilter(AmIpFilter.java:120)
        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
        at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:940)
        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
        at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
        at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
        at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
        at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
        at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
        at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
        at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
        at org.mortbay.jetty.Server.handle(Server.java:322)
        at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
        at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
        at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
        at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
        at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
        at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
        at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
Caused by: java.lang.NullPointerException
        at org.apache.hadoop.yarn.util.ConverterUtils.toString(ConverterUtils.java:145)
        at org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskAttemptInfo.<init>(TaskAttemptInfo.java:69)
        at org.apache.hadoop.mapreduce.v2.app.webapp.dao.TaskAttemptInfo.<init>(TaskAttemptInfo.java:60)
        at org.apache.hadoop.mapreduce.v2.app.webapp.TaskPage$AttemptsBlock.render(TaskPage.java:76)
        at org.apache.hadoop.yarn.webapp.view.HtmlBlock.render(HtmlBlock.java:64)
        at org.apache.hadoop.yarn.webapp.view.HtmlBlock.renderPartial(HtmlBlock.java:74)
        at org.apache.hadoop.yarn.webapp.View.render(View.java:233)
        at org.apache.hadoop.yarn.webapp.view.HtmlPage$Page.subView(HtmlPage.java:47)
        at org.apache.hadoop.yarn.webapp.hamlet.HamletImpl$EImp._v(HamletImpl.java:117)
        at org.apache.hadoop.yarn.webapp.hamlet.Hamlet$TD._(Hamlet.java:843)
        at org.apache.hadoop.yarn.webapp.view.TwoColumnLayout.render(TwoColumnLayout.java:54)
        at org.apache.hadoop.yarn.webapp.view.HtmlPage.render(HtmlPage.java:80)
        at org.apache.hadoop.yarn.webapp.Controller.render(Controller.java:210)
        at org.apache.hadoop.mapreduce.v2.app.webapp.AppController.task(AppController.java:250)

        ... 37 more
{noformat}

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