Zhijie Shen reassigned YARN-3981:

    Assignee: Zhijie Shen

> support timeline clients not associated with an application
> -----------------------------------------------------------
>                 Key: YARN-3981
>                 URL: https://issues.apache.org/jira/browse/YARN-3981
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>    Affects Versions: YARN-2928
>            Reporter: Sangjin Lee
>            Assignee: Zhijie Shen
> In the current v.2 design, all timeline writes must belong in a 
> flow/application context (cluster + user + flow + flow run + application).
> But there are use cases that require writing data outside the context of an 
> application. One such example is a higher level client (e.g. tez client or 
> hive/oozie/cascading client) writing flow-level data that spans multiple 
> applications. We need to find a way to support them.

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