Li Lu commented on YARN-4234:

Hi [~Naganarasimha], IIUC the TIMELINE_SERVICE_VERSION config is describing the 
server's version. The client API implementation will perform sanity check to 
avoid calling a wrong (lower) version of API to the server. This is orthogonal 
to assuming to a particular version of ATS. The application can handle the 
logic by itself to decide which correct API to call. Am I missing anything 
here? Thanks. 

> New put APIs in TimelineClient for ats v1.5
> -------------------------------------------
>                 Key: YARN-4234
>                 URL: https://issues.apache.org/jira/browse/YARN-4234
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>            Reporter: Xuan Gong
>            Assignee: Xuan Gong
>         Attachments: YARN-4234.1.patch, YARN-4234.2.patch, 
> YARN-4234.20151109.patch, YARN-4234.20151110.1.patch, 
> YARN-4234.20151111.1.patch, YARN-4234.3.patch
> In this ticket, we will add new put APIs in timelineClient to let 
> clients/applications have the option to use ATS v1.5

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