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From "Vikram Dixit K (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-13343) Need to disable hybrid grace hash join in llap mode except for dynamically partitioned hash join
Date Tue, 19 Apr 2016 21:22:25 GMT

    [ https://issues.apache.org/jira/browse/HIVE-13343?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15248675#comment-15248675
] 

Vikram Dixit K commented on HIVE-13343:
---------------------------------------

[~hagleitn] could you review this please?

> Need to disable hybrid grace hash join in llap mode except for dynamically partitioned
hash join
> ------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-13343
>                 URL: https://issues.apache.org/jira/browse/HIVE-13343
>             Project: Hive
>          Issue Type: Bug
>          Components: llap
>    Affects Versions: 2.1.0
>            Reporter: Vikram Dixit K
>            Assignee: Vikram Dixit K
>         Attachments: HIVE-13343.1.patch, HIVE-13343.2.patch
>
>
> Due to performance reasons, we should disable use of hybrid grace hash join in llap when
dynamic partition hash join is not used. With dynamic partition hash join, we need hybrid
grace hash join due to the possibility of skews.



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