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https://issues.apache.org/jira/browse/SPARK-43378?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean R. Owen resolved SPARK-43378.
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Fix Version/s: 3.4.1
3.5.0
Assignee: Emil Ejbyfeldt
Resolution: Fixed
Resolved by https://github.com/apache/spark/pull/41049
> SerializerHelper.deserializeFromChunkedBuffer
> ---------------------------------------------
>
> Key: SPARK-43378
> URL: https://issues.apache.org/jira/browse/SPARK-43378
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 3.4.0, 3.4.1, 3.5.0
> Reporter: Emil Ejbyfeldt
> Assignee: Emil Ejbyfeldt
> Priority: Major
> Fix For: 3.4.1, 3.5.0
>
>
> The method SerializerHelper.deserializeFromChunkedBuffer leaks serializations
> stream. This can lead to huge performance regressions when using kryo
> serializer as the spark application can become bottlenecked on the driver
> creating expensive kryo objects that are then leaked as part of the
> deserialization stream
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