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L. C. Hsieh commented on SPARK-29302:
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Will a speculation task have the same JobID as previous task like above test?
> 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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