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https://issues.apache.org/jira/browse/YARN-8428?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eric Yang reassigned YARN-8428:
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Assignee: Eric Yang
> YARN service has ZooKeeper connection leaks
> -------------------------------------------
>
> Key: YARN-8428
> URL: https://issues.apache.org/jira/browse/YARN-8428
> Project: Hadoop YARN
> Issue Type: Bug
> Components: yarn-native-services
> Affects Versions: 3.1.0
> Reporter: Eric Yang
> Assignee: Eric Yang
> Priority: Critical
>
> There are two leaks discovered during stress test. First, YARN service
> application master uses RegistryDNS to create DNS record for YARN service.
> Data is first persisted on ZooKeeper, and RegistryDNS will lookup data in
> ZooKeeper to create DNS entries. YARN service AM does not close ZooKeeper
> connection after the record has been created. Second, when deleting DNS
> record from ZooKeeper, ZooKeeper connection is left open.
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