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https://issues.apache.org/jira/browse/SPARK-59125?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated SPARK-59125:
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Labels: pull-request-available (was: )
> Spark Connect sends cleanup RPC after the session is released
> -------------------------------------------------------------
>
> Key: SPARK-59125
> URL: https://issues.apache.org/jira/browse/SPARK-59125
> Project: Spark
> Issue Type: Bug
> Components: Connect, PySpark
> Affects Versions: 4.2.0, 4.3.0, 4.4.0
> Reporter: Kaicheng Zhou
> Priority: Major
> Labels: pull-request-available
>
> SparkConnectClient._on_exit() unconditionally invokes _cleanup_ml_cache() for
> clients that remain open. If release_session() was called explicitly, the
> server-side session has already been released, but the client is not marked
> as closed. Consequently, the exit handler sends an unnecessary ML cache
> cleanup RPC to the released session. The client should record a successful
> session release and make _on_exit() a no-op afterward. This avoids redundant
> RPCs and potential delays during interpreter shutdown.
> Following up on SPARK-55326.
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