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https://issues.apache.org/jira/browse/SPARK-47910?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun closed SPARK-47910.
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> Memory leak when interrupting shuffle write using zstd compression
> ------------------------------------------------------------------
>
> Key: SPARK-47910
> URL: https://issues.apache.org/jira/browse/SPARK-47910
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 3.2.0, 3.3.0, 3.4.0, 3.5.0
> Reporter: JacobZheng
> Assignee: JacobZheng
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.5.2, 4.0.0
>
>
> When spark.sql.execution.interruptOnCancel=true and
> spark.io.compression.codec=zstd, a memory leak was found when tasks were
> cancelled at specific times. The reason for this is that cancelling a task
> interrupts the shuffle write, which then calls
> org.apache.spark.storage.DiskBlockObjectWriter#closeResources. this process
> then only closes the ManualCloseOutputStream, which is wrapped with this
> ZstdInputStreamNoFinalizer will not be closed. Moreover,
> ZstdInputStreamNoFinalizer doesn't implement Finalizer so it won't be
> reclaimed by GC automatically.
>
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