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https://issues.apache.org/jira/browse/YARN-6565?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15999171#comment-15999171
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Botong Huang commented on YARN-6565:
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Thanks [~subru] for the review!
> Fix memory leak and finish app trigger in AMRMProxy
> ---------------------------------------------------
>
> Key: YARN-6565
> URL: https://issues.apache.org/jira/browse/YARN-6565
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Botong Huang
> Assignee: Botong Huang
> Priority: Minor
> Fix For: 2.9.0, 3.0.0-alpha3
>
> Attachments: YARN-6565.v1.patch, YARN-6565.v2.patch
>
>
> Two issues in AMRMProxy:
> 1. When application finishes, AMRMTokenSecretManager is not updated to remove
> related data, leading to memory leak.
> 2. When we kill an application, we should remove the pipeline after the AM
> container is killed.
> FINISH_APPLICATION event is sent when the AM container is still being killed.
> After we remove the pipeline, we might still get heartbeats from AM,
> triggering exception messages.
> Instead, we should wait for APPLICATION_RESOURCES_CLEANEDUP event, sent after
> where the AM container is killed.
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