distcp can timeout during rename operation to s3
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                 Key: MAPREDUCE-972
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-972
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: distcp
    Affects Versions: 0.20.1
            Reporter: Aaron Kimball
            Assignee: Aaron Kimball
         Attachments: MAPREDUCE-972.patch

rename() in S3 is implemented as copy + delete. The S3 copy operation can 
perform very slowly, which may cause task timeout.

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