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https://issues.apache.org/jira/browse/YARN-3040?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14366614#comment-14366614
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Li Lu commented on YARN-3040:
-----------------------------

Quick comment: In my understanding the flow based API is used in multiple 
components, including but not limited to event producers (like distributed 
shell, rm and nms), collectors (a.k.a aggregators), and storage 
implementations. It's not specially attached to the rm. 

> [Data Model] Implement client-side API for handling flows
> ---------------------------------------------------------
>
>                 Key: YARN-3040
>                 URL: https://issues.apache.org/jira/browse/YARN-3040
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>            Reporter: Sangjin Lee
>            Assignee: Robert Kanter
>
> Per design in YARN-2928, implement client-side API for handling *flows*. 
> Frameworks should be able to define and pass in all attributes of flows and 
> flow runs to YARN, and they should be passed into ATS writers.
> YARN tags were discussed as a way to handle this piece of information.



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