Sangjin Lee created YARN-3981:

             Summary: support timeline clients not associated with an 
                 Key: YARN-3981
             Project: Hadoop YARN
          Issue Type: Sub-task
          Components: timelineserver
    Affects Versions: YARN-2928
            Reporter: Sangjin Lee

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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