Chandni Singh created SPARK-31689:
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Summary: ShuffleBlockFetchIterator keeps localBlocks in its memory
even though it never uses it
Key: SPARK-31689
URL: https://issues.apache.org/jira/browse/SPARK-31689
Project: Spark
Issue Type: Bug
Components: Shuffle
Affects Versions: 2.4.5
Reporter: Chandni Singh
The {{localBlocks}} is created and used in the {{initialize}} method of
ShuffleBlockFetchIterator but is never used after that.
It can be local to the initialize method instead of being a field in the
{{ShuffleBlockFetchIterator}} instance. It hold son to memory until iterator
instance is alive which is unnecessary.
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