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https://issues.apache.org/jira/browse/SPARK-58714?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cheng Pan resolved SPARK-58714.
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Fix Version/s: 4.0.5
4.1.4
4.2.1
4.3.0
Resolution: Fixed
Issue resolved by pull request 57953
[https://github.com/apache/spark/pull/57953]
> Fix AdminClient leak in KafkaTokenUtil.obtainToken
> --------------------------------------------------
>
> Key: SPARK-58714
> URL: https://issues.apache.org/jira/browse/SPARK-58714
> Project: Spark
> Issue Type: Bug
> Components: Structured Streaming
> Affects Versions: 5.0.0
> Reporter: Cheng Pan
> Assignee: Cheng Pan
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.5, 4.1.4, 4.2.1, 4.3.0
>
>
> KafkaTokenUtil.obtainToken creates an AdminClient but never closes it, on
> either the success or the exception path. Each token obtain cycle (per
> cluster, per renewal) and each failed attempt leaks the client's network
> thread and sockets in long-running drivers.
> Introduced by SPARK-25501 (Spark 3.0.0); affects all releases since (3.0.0 -
> 4.2.0).
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