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https://issues.apache.org/jira/browse/SPARK-31208?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun resolved SPARK-31208.
-----------------------------------
Fix Version/s: 3.1.0
Resolution: Fixed
Issue resolved by pull request 28038
[https://github.com/apache/spark/pull/28038]
> Expose the ability for user to cleanup shuffle files
> ----------------------------------------------------
>
> Key: SPARK-31208
> URL: https://issues.apache.org/jira/browse/SPARK-31208
> Project: Spark
> Issue Type: Improvement
> Components: Kubernetes
> Affects Versions: 3.0.0, 3.1.0
> Reporter: Holden Karau
> Assignee: Holden Karau
> Priority: Major
> Fix For: 3.1.0
>
>
> Dynamic scaling on Kubernetes (introduced in Spark 3) depends on only
> shutting down executors without shuffle files. However Spark does not
> aggressively clean up shuffle files (see SPARK-5836) and instead depends on
> JVM GC on the driver to trigger deletes. We already have a mechanism to
> explicitly clean up shuffle files from the ALS algorithm where we create a
> lot of quickly orphaned shuffle files. We should expose this as an advanced
> developer feature to enable people to better clean-up shuffle files improving
> dynamic scaling of their jobs on Kubernetes.
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