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https://issues.apache.org/jira/browse/HADOOP-3403?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arun C Murthy updated HADOOP-3403:
----------------------------------
Status: Patch Available (was: Open)
> Job tracker's ExpireTackers thread gets NullPointerException if a tasktracker
> is lost.
> --------------------------------------------------------------------------------------
>
> Key: HADOOP-3403
> URL: https://issues.apache.org/jira/browse/HADOOP-3403
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.18.0
> Reporter: Amareshwari Sriramadasu
> Assignee: Arun C Murthy
> Priority: Blocker
> Fix For: 0.18.0
>
> Attachments: HADOOP-3403_0_20080516.patch
>
>
> JobTracker's ExpireTrackers gets NullPOinterException, if a tasktracker is
> lost.
> JobTracker's log shows the following:
> 2008-05-16 04:48:08,170 INFO org.apache.hadoop.mapred.JobTracker: Lost
> tracker 'tracker_XXXXX.com:XXXXX.com/98.136.100.125:58462'
> 2008-05-16 04:48:08,170 INFO org.apache.hadoop.mapred.TaskInProgress: Error
> from attempt_200805160431_0001_m_000001_0: Lost task tracker:
> tracker_XXXXX.com:XXXXX.com/98.136.100.125:58462
> 2008-05-16 04:48:08,171 ERROR org.apache.hadoop.mapred.JobTracker: Tracker
> Expiry Thread got exception: java.lang.NullPointerException
> at
> org.apache.hadoop.mapred.JobInProgress.failedTask(JobInProgress.java:1489)
> at
> org.apache.hadoop.mapred.JobInProgress.updateTaskStatus(JobInProgress.java:537)
> at
> org.apache.hadoop.mapred.JobInProgress.failedTask(JobInProgress.java:1595)
> at
> org.apache.hadoop.mapred.JobTracker.lostTaskTracker(JobTracker.java:2079)
> at
> org.apache.hadoop.mapred.JobTracker$ExpireTrackers.run(JobTracker.java:301)
> at java.lang.Thread.run(Thread.java:619)
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