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From: "Jason Lowe (JIRA)" <jira@apache.org>
To: mapreduce-dev@hadoop.apache.org
Message-ID: <530205096.131189.1348700827826.JavaMail.jiratomcat@arcas>
Subject: [jira] [Created] (MAPREDUCE-4689) JobClient.getMapTaskReports on
 failed job results in NPE
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Jason Lowe created MAPREDUCE-4689:
-------------------------------------

             Summary: JobClient.getMapTaskReports on failed job results in NPE
                 Key: MAPREDUCE-4689
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4689
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: client
    Affects Versions: 0.23.3
            Reporter: Jason Lowe


When calling JobClient.getMapTaskReports for a job that has failed results in an NPE.  For example:

{noformat}
Exception in thread "main" java.lang.NullPointerException
	at org.apache.hadoop.mapreduce.counters.AbstractCounters.<init>(AbstractCounters.java:107)
	at org.apache.hadoop.mapred.Counters.<init>(Counters.java:71)
	at org.apache.hadoop.mapred.Counters.downgrade(Counters.java:80)
	at org.apache.hadoop.mapred.TaskReport.downgrade(TaskReport.java:81)
	at org.apache.hadoop.mapred.TaskReport.downgradeArray(TaskReport.java:88)
	at org.apache.hadoop.mapred.JobClient.getTaskReports(JobClient.java:691)
	at org.apache.hadoop.mapred.JobClient.getMapTaskReports(JobClient.java:681)
...
{noformat}


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