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https://issues.apache.org/jira/browse/YARN-5638?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15485778#comment-15485778
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Junping Du commented on YARN-5638:
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Why collector's lifecycle need to bind with AM attempt? AM failed doesn't means
collector have to be killed/restart.
> Introduce a collector Id to uniquely identify collectors and their creation
> order
> ---------------------------------------------------------------------------------
>
> Key: YARN-5638
> URL: https://issues.apache.org/jira/browse/YARN-5638
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineserver
> Reporter: Li Lu
> Assignee: Li Lu
>
> As discussed in YARN-3359, we need to further identify timeline collectors
> and their creation order for better service discovery and resource isolation.
> This JIRA proposes to use <app, attempt, timestamp> to accurately identify
> each timeline collector.
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