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Posted to dev@hive.apache.org by "Rui Li (JIRA)" <ji...@apache.org> on 2015/02/03 12:43:35 UTC

[jira] [Created] (HIVE-9561) SHUFFLE_SORT should only be used for order by query [Spark Branch]

Rui Li created HIVE-9561:
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             Summary: SHUFFLE_SORT should only be used for order by query [Spark Branch]
                 Key: HIVE-9561
                 URL: https://issues.apache.org/jira/browse/HIVE-9561
             Project: Hive
          Issue Type: Sub-task
          Components: Spark
            Reporter: Rui Li
            Assignee: Rui Li


The {{sortByKey}} shuffle launches probe jobs. Such jobs can hurt performance and are difficult to control. So we should limit the use of {{sortByKey}} to order by query only.



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