[jira] [Created] (OOZIE-1728) When an ApplicationMaster restarts, it restarts the launcher job: DistCp followup

["Robert Kanter (JIRA)" <ji...@apache.org>]

Robert Kanter created OOZIE-1728:
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             Summary: When an ApplicationMaster restarts, it restarts the launcher job: DistCp followup
                 Key: OOZIE-1728
                 URL: https://issues.apache.org/jira/browse/OOZIE-1728
             Project: Oozie
          Issue Type: Sub-task
    Affects Versions: trunk
            Reporter: Robert Kanter
            Assignee: Robert Kanter


In doing OOZIE-1722, we had not not add support for the DistCp action because there wasn't a good clean way to set the {{mapreduce.job.tags}} property on the job launched by DistCp that would work between all versions of Hadoop.

The best solution would be to switch our version of Hadoop 1 to Hadoop 1.2.1 (OOZIE-1613), which would make DistCp v2 available in Hadoop 1.  The signatures of DistCp's constructor (where we can pass the tags property in a Configuration) should then be same.  We can then duplicate what DistCp.main(...) does.  

A more immediate solution would involve some ugly reflection based on different versions of Hadoop.



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