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Posted to issues@hive.apache.org by "Matt McCline (JIRA)" <ji...@apache.org> on 2015/04/17 01:01:26 UTC

[jira] [Updated] (HIVE-9824) LLAP: Native Vectorization of Map Join so previously CPU bound queries shift their bottleneck to I/O and make it possible for the rest of LLAP to shine ;)

     [ https://issues.apache.org/jira/browse/HIVE-9824?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matt McCline updated HIVE-9824:
-------------------------------
    Attachment: HIVE-9824.01.patch

> LLAP: Native Vectorization of Map Join so previously CPU bound queries shift their bottleneck to I/O and make it possible for the rest of LLAP to shine ;)
> ----------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-9824
>                 URL: https://issues.apache.org/jira/browse/HIVE-9824
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Matt McCline
>            Assignee: Matt McCline
>            Priority: Critical
>         Attachments: HIVE-9824.01.patch
>
>
> Today's VectorMapJoinOperator is a pass-through that converts each row from a vectorized row batch in a Java Object[] row and passes it to the MapJoinOperator superclass.
> This enhancement creates specialized vectorized map join operator classes that are optimized.



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