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https://issues.apache.org/jira/browse/YARN-8349?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16497045#comment-16497045
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Billie Rinaldi commented on YARN-8349:
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Thanks for the review, [~leftnoteasy]. I agree, moving the call to
FinalTransition and changing the method name make sense. Regarding comment 3,
the registry cleanup is only performed for applications with type yarn-service.
The AppAdminClient.createAppAdminClient method uses the application type to
determine which AppAdminClient subclass to instantiate.
> Remove YARN registry entries when a service is killed by the RM
> ---------------------------------------------------------------
>
> Key: YARN-8349
> URL: https://issues.apache.org/jira/browse/YARN-8349
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: yarn-native-services
> Affects Versions: 3.2.0, 3.1.1
> Reporter: Shane Kumpf
> Assignee: Billie Rinaldi
> Priority: Major
> Attachments: YARN-8349.1.patch, YARN-8349.2.patch
>
>
> As the title states, when a service is killed by the RM (for exceeding its
> lifetime for example), the YARN registry entries should be cleaned up.
> Without cleanup, DNS can contain multiple hostnames for a single IP address
> in the case where IPs are reused. This impacts reverse lookups, which breaks
> services, such as kerberos, that depend on those lookups.
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