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https://issues.apache.org/jira/browse/SPARK-29302?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16941472#comment-16941472
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feiwang edited comment on SPARK-29302 at 10/1/19 2:24 AM:
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For dynamic partition overwrite, when executing a task, a determinable path
would be specified.
In the reproduce suite above, I create two task attempt context with same task
id and different attempt id.
And specify a output dir for newTaskTempFile method.
was (Author: hzfeiwang):
For dynamic partition overwrite, when execute a task, a determinable path would
be specified.
In the reproduce suite above, I create two task attempt context with same task
id and different attempt id.
And specify a output dir for newTaskTempFile method.
> 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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