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From "liyunzhang_intel (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-16600) Refactor SetSparkReducerParallelism#needSetParallelism to enable parallel order by in multi_insert cases
Date Fri, 05 May 2017 21:27:04 GMT
liyunzhang_intel created HIVE-16600:
---------------------------------------

             Summary: Refactor SetSparkReducerParallelism#needSetParallelism to enable parallel
order by in multi_insert cases
                 Key: HIVE-16600
                 URL: https://issues.apache.org/jira/browse/HIVE-16600
             Project: Hive
          Issue Type: Sub-task
            Reporter: liyunzhang_intel


in multi_insert cases multi_insert_gby2.q, the parallelism of SORT operator is 1 even we set
"hive.optimize.sampling.orderby" = true.  This is because the logic of SetSparkReducerParallelism#needSetParallelism
does not support this case.



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