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From "Hyukjin Kwon (Jira)" <j...@apache.org>
Subject [jira] [Resolved] (SPARK-29302) dynamic partition overwrite with speculation enabled
Date Fri, 04 Oct 2019 08:30:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-29302?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hyukjin Kwon resolved SPARK-29302.
----------------------------------
    Resolution: Invalid

> dynamic partition overwrite with speculation enabled
> ----------------------------------------------------
>
>                 Key: SPARK-29302
>                 URL: https://issues.apache.org/jira/browse/SPARK-29302
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.4.4
>            Reporter: feiwang
>            Priority: Major
>
> Now, for a dynamic partition overwrite operation,  the filename of a task output is determinable.
> So, if speculation is enabled,  would a task conflict with  its relative speculation
task?
> Would the two tasks concurrent write a same file?



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