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From "Kan Zhang (JIRA)" <j...@apache.org>
Subject [jira] Updated: (MAPREDUCE-1992) NPE in JobTracker's constructor
Date Tue, 03 Aug 2010 23:58:17 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-1992?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kan Zhang updated MAPREDUCE-1992:
---------------------------------

    Status: Patch Available  (was: Open)

> NPE in JobTracker's constructor
> -------------------------------
>
>                 Key: MAPREDUCE-1992
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1992
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: jobtracker
>            Reporter: Ravi Gummadi
>         Attachments: m1992-02.patch
>
>
> On my local machine, JobTracker is *not* coming up with current trunk. Logs show the
following NPE:
> 2010-08-03 14:01:41,449 FATAL org.apache.hadoop.mapred.JobTracker: java.lang.NullPointerException
>   at org.apache.hadoop.security.UserGroupInformation.isLoginKeytabBased(UserGroupInformation.java:703)
>   at org.apache.hadoop.mapred.JobTracker.<init>(JobTracker.java:1383)
>   at org.apache.hadoop.mapred.JobTracker.startTracker(JobTracker.java:275)
>   at org.apache.hadoop.mapred.JobTracker.startTracker(JobTracker.java:267)
>   at org.apache.hadoop.mapred.JobTracker.startTracker(JobTracker.java:262)
>   at org.apache.hadoop.mapred.JobTracker.main(JobTracker.java:4236)
> 2010-08-03 14:01:41,449 INFO org.apache.hadoop.mapred.JobTracker: SHUTDOWN_MSG:

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