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From "Jesus Camacho Rodriguez (JIRA)" <j...@apache.org>
Subject [jira] [Work started] (HIVE-19504) Change default value for hive.auto.convert.join.shuffle.max.size property
Date Fri, 11 May 2018 17:55:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-19504?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Work on HIVE-19504 started by Jesus Camacho Rodriguez.
------------------------------------------------------
> Change default value for hive.auto.convert.join.shuffle.max.size property
> -------------------------------------------------------------------------
>
>                 Key: HIVE-19504
>                 URL: https://issues.apache.org/jira/browse/HIVE-19504
>             Project: Hive
>          Issue Type: Bug
>          Components: Physical Optimizer
>    Affects Versions: 3.0.0
>            Reporter: Jesus Camacho Rodriguez
>            Assignee: Jesus Camacho Rodriguez
>            Priority: Major
>         Attachments: HIVE-19504.patch
>
>
> The property default value is too low by mistake (10MB), it is missing three trailing
zeros.
> {code}
>     HIVECONVERTJOINMAXSHUFFLESIZE("hive.auto.convert.join.shuffle.max.size", 10000000L,
>        "If hive.auto.convert.join.noconditionaltask is off, this parameter does not take
affect. \n" +
>        "However, if it is on, and the predicted size of the larger input for a given
join is greater \n" +
>        "than this number, the join will not be converted to a dynamically partitioned
hash join. \n" +
>        "The value \"-1\" means no limit."),
> {code}



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