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https://issues.apache.org/jira/browse/HADOOP-6757?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eli Collins resolved HADOOP-6757.
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Resolution: Fixed
I think this is fixed in branch-1, and is not relevant to other releases.
> NullPointerException for hadoop clients launched from streaming tasks
> ---------------------------------------------------------------------
>
> Key: HADOOP-6757
> URL: https://issues.apache.org/jira/browse/HADOOP-6757
> Project: Hadoop Common
> Issue Type: Bug
> Components: scripts
> Reporter: Amar Kamat
> Assignee: Amar Kamat
> Attachments: BZ-3620565-v1.0.patch, HADOOP-6757-v1.0.patch
>
>
> 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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