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From "Amar Kamat (JIRA)" <j...@apache.org>
Subject [jira] Created: (MAPREDUCE-1771) NullPointerException for hadoop clients launched from streaming tasks
Date Fri, 07 May 2010 05:21:48 GMT
NullPointerException for hadoop clients launched from streaming tasks
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                 Key: MAPREDUCE-1771
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1771
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: client
            Reporter: Amar Kamat
            Assignee: Amar Kamat


TaskRunner sets HADOOP_ROOT_LOGGER to info,TLA while launching the child tasks. TLA implicitly
assumes that that task-id information will be made available via the 'hadoop.tasklog.taskid'
parameter. 'hadoop.tasklog.taskid' is passed to the child task by the TaskRunner via HADOOP_CLIENT_OPTS.
When the streaming task launches a hadoop client (say hadoop job -list), the HADOOP_ROOT_LOGGER
of the hadoop client is set to 'info,TLA' but hadoop.tasklog.taskid is not set resulting into
NPE.

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