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https://issues.apache.org/jira/browse/SPARK-29302?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-29302.
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Fix Version/s: 3.1.0
Resolution: Fixed
Issue resolved by pull request 29000
[https://github.com/apache/spark/pull/29000]
> 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
> Fix For: 3.1.0
>
> Attachments: screenshot-1.png, screenshot-2.png
>
>
> 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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