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https://issues.apache.org/jira/browse/HADOOP-5234?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12673225#action_12673225
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Amareshwari Sriramadasu commented on HADOOP-5234:
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If the exception occurs during ReinitAction, the TaskTracker process dies.
> NPE in TaskTracker reinit action
> --------------------------------
>
> Key: HADOOP-5234
> URL: https://issues.apache.org/jira/browse/HADOOP-5234
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.19.0
> Reporter: Amareshwari Sriramadasu
> Assignee: Amareshwari Sriramadasu
> Priority: Critical
>
> I have seen an NPE in TT reinit action.
> TT logs :
> {noformat}
> 2009-02-12 12:14:02,859 INFO org.apache.hadoop.mapred.TaskTracker: Error
> cleaning up task runner: java.lang.NullPointerException
> at
> org.apache.hadoop.mapred.TaskTracker$TaskInProgress.cleanup(TaskTracker.java:2515)
> at
> org.apache.hadoop.mapred.TaskTracker$TaskInProgress.jobHasFinished(TaskTracker.java:2381)
> at org.apache.hadoop.mapred.TaskTracker.close(TaskTracker.java:925)
> at org.apache.hadoop.mapred.TaskTracker.run(TaskTracker.java:1830)
> at org.apache.hadoop.mapred.TaskTracker.main(TaskTracker.java:2901)
> {noformat}
> corresponding code is
> {noformat}
> 2515 if (localJobConf.getNumTasksToExecutePerJvm() == 1) {
> {noformat}
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