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https://issues.apache.org/jira/browse/YARN-3041?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14326178#comment-14326178
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Joep Rottinghuis commented on YARN-3041:
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Agreed with [~sjlee0] that
we should use an enum to enumerate the timeline entity types.
Not sure if we should directly use enums, or have
TimelineEntity.type be interface TimelineEntityType and have an enum that
implements that interface.
The latter is more extensible later on (there could be other enums implementing
the interface).
On the other hand that makes things a bit harder to enumerate over, so perhaps
that is overkill.
> [Data Model] create overall data objects of TS next gen
> -------------------------------------------------------
>
> Key: YARN-3041
> URL: https://issues.apache.org/jira/browse/YARN-3041
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineserver
> Reporter: Sangjin Lee
> Assignee: Zhijie Shen
> Attachments: Data_model_proposal_v2.pdf, YARN-3041.2.patch,
> YARN-3041.3.patch, YARN-3041.4.patch, YARN-3041.preliminary.001.patch
>
>
> Per design in YARN-2928, create the ATS entity and events API.
> Also, as part of this JIRA, create YARN system entities (e.g. cluster, user,
> flow, flow run, YARN app, ...).
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