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https://issues.apache.org/jira/browse/HIVE-8597?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14183755#comment-14183755
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Vikram Dixit K commented on HIVE-8597:
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LGTM +1. +1 for 0.14 as well.

> SMB join small table side should use the same set of serialized payloads 
> across tasks
> -------------------------------------------------------------------------------------
>
>                 Key: HIVE-8597
>                 URL: https://issues.apache.org/jira/browse/HIVE-8597
>             Project: Hive
>          Issue Type: Improvement
>          Components: Tez
>    Affects Versions: 0.14.0
>            Reporter: Siddharth Seth
>            Assignee: Siddharth Seth
>             Fix For: 0.14.0
>
>         Attachments: HIVE-8597.1.patch
>
>
> Each task sees all splits belonging to the bucket being processed by the 
> task. At the moment, we end up using different instances of the same 
> serialized split which adds unnecessary memory pressure.



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