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https://issues.apache.org/jira/browse/SPARK-53549?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated SPARK-53549:
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Labels: pull-request-available (was: )
> Fix the list state memory leak issue due to an unclosed Arrow allocator
> -----------------------------------------------------------------------
>
> Key: SPARK-53549
> URL: https://issues.apache.org/jira/browse/SPARK-53549
> Project: Spark
> Issue Type: Bug
> Components: Structured Streaming
> Affects Versions: 4.1.0, 4.0.0, 4.0.1
> Reporter: Huanli Wang
> Priority: Major
> Labels: pull-request-available
>
> We create a
> [TransformWithStateInPySparkDeserializer|https://github.com/apache/spark/blob/7201e60bb3e898f65db5045ec293c650e14cfa95/sql/core/src/main/scala/org/apache/spark/sql/execution/python/streaming/TransformWithStateInPySparkStateServer.scala#L460-L464]
> every time when we process a list state request. Inside
> [TransformWithStateInPySparkDeserializer|https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/execution/python/streaming/TransformWithStateInPySparkDeserializer.scala#L40],
> a child allocator is created from the *ArrowUtils.rootAllocator* when a new
> deserializer instance is created. However, we neither close this child
> allocator nor call rootAllocator.close, which leads to a memory leak in
> TWSStateServer.
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