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Date: Fri, 3 Sep 2010 00:43:34 -0400 (EDT)
From: "Ravi Gummadi (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
Subject: [jira] Commented: (MAPREDUCE-2031) TestTaskLauncher and
 TestTaskTrackerLocalization fail with NPE in trunk.
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    [ https://issues.apache.org/jira/browse/MAPREDUCE-2031?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12905783#action_12905783 ] 

Ravi Gummadi commented on MAPREDUCE-2031:
-----------------------------------------

Unit tests passed on my local machine.

ant test-patch gave:

     [exec] +1 overall.
     [exec]
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec]
     [exec]     +1 tests included.  The patch appears to include 6 new or modified tests.
     [exec]
     [exec]     +1 javadoc.  The javadoc tool did not generate any warning messages.
     [exec]
     [exec]     +1 javac.  The applied patch does not increase the total number of javac compiler warnings.
     [exec]
     [exec]     +1 findbugs.  The patch does not introduce any new Findbugs warnings.
     [exec]
     [exec]     +1 release audit.  The applied patch does not increase the total number of release audit warnings.
     [exec]
     [exec]     +1 system tests framework.  The patch passed system tests framework compile.


> TestTaskLauncher and TestTaskTrackerLocalization fail with NPE in trunk.
> ------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-2031
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2031
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: tasktracker, test
>    Affects Versions: 0.22.0
>            Reporter: Amareshwari Sriramadasu
>            Assignee: Ravi Gummadi
>             Fix For: 0.22.0
>
>         Attachments: 2031.patch
>
>
> TestTaskLauncher and TestTaskTrackerLocalization fail in trunk after the commit of MAPREDUCE-1881 with NPE:
> {noformat}
> java.lang.NullPointerException
>         at org.apache.hadoop.mapred.TaskTracker$TaskInProgress.kill(TaskTracker.java:2978)
>         at org.apache.hadoop.mapred.TaskTracker$TaskInProgress.jobHasFinished(TaskTracker.java:2941)
>         at org.apache.hadoop.mapred.TaskTracker.purgeJob(TaskTracker.java:1919)
>         at org.apache.hadoop.mapred.TestTaskTrackerLocalization.verifyUserLogsRemoval(TestTaskTrackerLocalization.java:816)
>         at org.apache.hadoop.mapred.TestTaskTrackerLocalization.testJobFilesRemoval(TestTaskTrackerLocalization.java:897)
> {noformat}
> {noformat}
> java.lang.NullPointerException
>         at org.apache.hadoop.mapred.TaskTracker$TaskInProgress.kill(TaskTracker.java:2978)
>         at org.apache.hadoop.mapred.TaskTracker$TaskInProgress.jobHasFinished(TaskTracker.java:2941)
>         at org.apache.hadoop.mapred.TaskTracker.purgeTask(TaskTracker.java:1981)
>         at org.apache.hadoop.mapred.TaskTracker.processKillTaskAction(TaskTracker.java:420)
>         at org.apache.hadoop.mapred.TestTaskLauncher.testExternalKillForLaunchTask(TestTaskLauncher.java:95)
> {noformat}
> NPE happens because taskTracker.myInstrumentation is not initialized.

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