Zhijie Shen commented on YARN-3041:

Another issue about having run id as the attribute of fll=ow: For example, 
there's a flow alice@pig_analyze_browsers, and two flow run 001 and 002. Only 
alice@pig_analyze_browsers will be used as the identifier (type = YARN_FLOW, id 
= alice@pig_analyze_browsers). We're not able to create two flow entities 
\[alice@pig_analyze_browsers, 001\] and \[alice@pig_analyze_browsers, 002\].

> [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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