[MAPREDUCE-4048] NullPointerException exception while accessing the Application Master UI

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0-alpha, 3.0.0-alpha1
• Fix Version/s: 0.23.3, 2.0.2-alpha
• Component/s: mrv2
• Assignee: Devaraj Kavali
• Reporter: Devaraj Kavali
• Created: 21/Mar/12 10:01
• Updated: 12/May/16 18:24
• Resolved: 04/May/12 15:05

Description

2012-03-21 10:21:31,838 ERROR [2145015588@qtp-957250718-801] org.apache.hadoop.yarn.webapp.Dispatcher: error handling URI: /mapreduce/attempts/job_1332261815858_2_8/m/KILLED
java.lang.reflect.InvocationTargetException
        at sun.reflect.GeneratedMethodAccessor50.invoke(Unknown Source)
        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 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 com.google.common.base.Joiner.toString(Joiner.java:317)
        at com.google.common.base.Joiner.appendTo(Joiner.java:97)
        at com.google.common.base.Joiner.appendTo(Joiner.java:127)
        at com.google.common.base.Joiner.join(Joiner.java:158)
        at com.google.common.base.Joiner.join(Joiner.java:166)
        at org.apache.hadoop.yarn.util.StringHelper.join(StringHelper.java:102)
        at org.apache.hadoop.mapreduce.v2.app.webapp.AppController.badRequest(AppController.java:319)
        at org.apache.hadoop.mapreduce.v2.app.webapp.AppController.attempts(AppController.java:286)
        ... 36 more