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https://issues.apache.org/jira/browse/SPARK-49300?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun closed SPARK-49300.
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> Fix Hadoop delegation token leak when tokenRenewalInterval is not set.
> ----------------------------------------------------------------------
>
> Key: SPARK-49300
> URL: https://issues.apache.org/jira/browse/SPARK-49300
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 3.4.3
> Reporter: Shuyan Zhang
> Assignee: Shuyan Zhang
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.5.3, 4.0.0
>
>
> If tokenRenewalInterval is not set,
> HadoopFSDelegationTokenProvider#getTokenRenewalInterval will fetch some
> tokens and renew them to get a interval value. These tokens do not call
> cancel(), resulting in a large number of existing tokens on HDFS not being
> cleared in a timely manner, causing additional pressure on the HDFS server.
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