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From "Xuefu Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-8406) Research on skewed join [Spark Branch]
Date Wed, 17 Dec 2014 16:36:14 GMT

    [ https://issues.apache.org/jira/browse/HIVE-8406?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14250088#comment-14250088
] 

Xuefu Zhang commented on HIVE-8406:
-----------------------------------

[~leftylev], this is just a research task. It doesn't seem needing any doc.

> Research on skewed join [Spark Branch]
> --------------------------------------
>
>                 Key: HIVE-8406
>                 URL: https://issues.apache.org/jira/browse/HIVE-8406
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Spark
>            Reporter: Xuefu Zhang
>            Assignee: Rui Li
>         Attachments: Skew join background.pdf
>
>
> Research on how to handle skewed join for hive on spark. Here is original hive's design
doc for skewed join, https://cwiki.apache.org/confluence/display/Hive/Skewed+Join+Optimization.



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