Holden Karau created SPARK-34280:
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Summary: Avoid migrating un-needed shuffle files
Key: SPARK-34280
URL: https://issues.apache.org/jira/browse/SPARK-34280
Project: Spark
Issue Type: Improvement
Components: Spark Core
Affects Versions: 3.1.0, 3.2.0, 3.1.1, 3.1.2
Reporter: Holden Karau
In Spark 3.1 we introduced shuffle migrations. However, it is possible that a
shuffle file will still exist after it is no longer needed. I've only observed
this in a back port branch with SQL, so I'll do some more digging.
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