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From "Arun Dobriyal (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-3500) To add instrumentation to capture if there is skew in reducers
Date Sun, 23 Sep 2012 23:54:07 GMT

     [ https://issues.apache.org/jira/browse/HIVE-3500?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arun Dobriyal updated HIVE-3500:
--------------------------------

    Attachment: Hive-3500.1.patch.txt
    
> To add instrumentation to capture if there is skew in reducers
> --------------------------------------------------------------
>
>                 Key: HIVE-3500
>                 URL: https://issues.apache.org/jira/browse/HIVE-3500
>             Project: Hive
>          Issue Type: Improvement
>    Affects Versions: 0.10.0
>            Reporter: Arun Dobriyal
>            Priority: Minor
>         Attachments: Hive-3500.1.patch.txt
>
>
> To add the reducer skew information. To log min/max/mean/(standard deviation) of the
reducers run times in the QueryPlan. 

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