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https://issues.apache.org/jira/browse/YARN-5638?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15563829#comment-15563829
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Sangjin Lee commented on YARN-5638:
-----------------------------------
I see. My bad. I missed the part where the active state transition resets the
cluster timestamp. I only looked at the original definition and assumed
(incorrectly) that it was never overwritten. Please disregard my comments about
the active state transition then. As long as we stick with the active state
transition timestamp, we should be fine. Thanks for the clarification.
> Introduce a collector timestamp to uniquely identify collectors creation
> order in collector discovery
> -----------------------------------------------------------------------------------------------------
>
> 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
> Attachments: YARN-5638-trunk.v1.patch, YARN-5638-trunk.v2.patch,
> YARN-5638-trunk.v3.patch
>
>
> As discussed in YARN-3359, we need to further identify timeline collectors'
> creation order to rebuild collector discovery data in the RM. This JIRA
> proposes to use <rm_timestamp, logical_version_number> to order collectors
> for each application in the RM. This timestamp can then be used when a
> standby RM becomes active and rebuild collector discovery data.
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