Sergio Peña created HIVE-14271:
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             Summary: FileSinkOperator should not rename files to final paths 
when S3 is the default destination
                 Key: HIVE-14271
                 URL: https://issues.apache.org/jira/browse/HIVE-14271
             Project: Hive
          Issue Type: Sub-task
            Reporter: Sergio Peña
            Assignee: Sergio Peña


FileSinkOperator does a rename of {{outPaths -> finalPaths}} when it finished 
writing all rows to a temporary path. The problem is that S3 does not support 
renaming.

Two options can be considered:

a. Use a copy operation instead. After FileSinkOperator writes all rows to 
outPaths, then the commit method will do a copy() call instead of move().

b. Write row by row directly to the S3 path (see HIVE-1620). This may add 
better performance calls, but we should take care of the cleanup part in case 
of writing errors.



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