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https://issues.apache.org/jira/browse/HIVE-20713?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Prasanth Jayachandran updated HIVE-20713:
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Attachment: HIVE-20713.2.patch
> Use percentage for join conversion size thresholds
> --------------------------------------------------
>
> Key: HIVE-20713
> URL: https://issues.apache.org/jira/browse/HIVE-20713
> Project: Hive
> Issue Type: Improvement
> Affects Versions: 4.0.0
> Reporter: Prasanth Jayachandran
> Assignee: Prasanth Jayachandran
> Priority: Major
> Attachments: HIVE-20713.1.patch, HIVE-20713.2.patch
>
>
> There are many places in join conversion that rely on absolute byte sizes for
> join conversions (mapjoin, dynamic hashjoin etc.). When container sizes
> change, these join conversion thresholds have to be tuned accordingly
> according to the new container size. Instead, make the join conversions byte
> sizes a percentage/fraction of container size.
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