Holden Karau created SPARK-31208:
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Summary: 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: 3.1.0
Reporter: Holden Karau
Assignee: Holden Karau
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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