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From "Lefty Leverenz (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-16553) Change default value for hive.tez.bigtable.minsize.semijoin.reduction
Date Sun, 30 Apr 2017 04:26:04 GMT

     [ https://issues.apache.org/jira/browse/HIVE-16553?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lefty Leverenz updated HIVE-16553:
----------------------------------
    Labels: TODOC3.0  (was: )

> Change default value for hive.tez.bigtable.minsize.semijoin.reduction
> ---------------------------------------------------------------------
>
>                 Key: HIVE-16553
>                 URL: https://issues.apache.org/jira/browse/HIVE-16553
>             Project: Hive
>          Issue Type: Bug
>          Components: Configuration
>            Reporter: Jason Dere
>            Assignee: Jason Dere
>              Labels: TODOC3.0
>             Fix For: 3.0.0
>
>         Attachments: HIVE-16553.1.patch
>
>
> Current value is 1M rows, would like to bump this up to make sure we are not creating
semjoin optimizations on dimension tables, since having too many semijoin optimizations can
cause serialized execution of tasks if lots of tasks are waiting for semijoin optimizations
to be computed.



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