liuxian created SPARK-23516:
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Summary: I think it is unnecessary to transfer unroll memory to
storage memory
Key: SPARK-23516
URL: https://issues.apache.org/jira/browse/SPARK-23516
Project: Spark
Issue Type: Improvement
Components: Spark Core
Affects Versions: 2.3.0
Reporter: liuxian
In fact, unroll memory is also storage memory,so I think it is unnecessary to
release unroll memory really, and then to get storage memory again.
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