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From "liyunzhang_intel (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-16600) Refactor SetSparkReducerParallelism#needSetParallelism to enable parallel order by in multi_insert cases
Date Fri, 05 May 2017 22:42:04 GMT

     [ https://issues.apache.org/jira/browse/HIVE-16600?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

liyunzhang_intel updated HIVE-16600:
------------------------------------
    Attachment: HIVE-16600.patch

> 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
>            Assignee: liyunzhang_intel
>         Attachments: HIVE-16600.patch
>
>
> 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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