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Posted to common-issues@hadoop.apache.org by "Amar Kamat (JIRA)" <ji...@apache.org> on 2010/05/07 09:26:47 UTC
[jira] Moved: (HADOOP-6757) NullPointerException for hadoop clients
launched from streaming tasks
[ https://issues.apache.org/jira/browse/HADOOP-6757?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Amar Kamat moved MAPREDUCE-1771 to HADOOP-6757:
-----------------------------------------------
Component/s: scripts
Project: Hadoop Common (was: Hadoop Map/Reduce)
Key: HADOOP-6757 (was: MAPREDUCE-1771)
Component/s: (was: client)
> 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
>
> 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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