Varun Saxena commented on YARN-3047:

[~sjlee0], wanted to know whether we will have a single instance of ATS Reader 
which the clients will connect to for querying. And this instance can in turn 
launch multiple threads to query storage in parallel.
Or a global instance which distributes requests to multiple instances of ATS 
readers ?

> set up ATS reader with basic request serving structure and lifecycle
> --------------------------------------------------------------------
>                 Key: YARN-3047
>                 URL: https://issues.apache.org/jira/browse/YARN-3047
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>            Reporter: Sangjin Lee
>            Assignee: Varun Saxena
> Per design in YARN-2938, set up the ATS reader as a service and implement the 
> basic structure as a service. It includes lifecycle management, request 
> serving, and so on.

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