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https://issues.apache.org/jira/browse/SPARK-31689?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chandni Singh updated SPARK-31689:
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Description:
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 holds on to memory until iterator
instance is alive which is unnecessary.
was:
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.
> 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, Spark Core
> Affects Versions: 2.4.5
> Reporter: Chandni Singh
> Priority: Minor
>
> 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 holds on to memory until iterator
> instance is alive which is unnecessary.
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