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From "Amar Kamat (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-6757) NullPointerException for hadoop clients launched from streaming tasks
Date Fri, 07 May 2010 08:58:47 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-6757?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Amar Kamat updated HADOOP-6757:

    Status: Patch Available  (was: Open)

Running through Hudson.

> 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

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