chang li updated YARN-2556:
    Attachment: yarn2556_wip.patch

Thanks [~airbots] for the substantial early work! I have moved the test job 
into mapreduce jobclient tests to avoid circular dependency. I have tested the 
patch, and it has successfully shown the write time, write counters and write 
per second. I will continue to work on it to add more metric of measurement 
such as transaction rates, IO rates and memory usage.

> Tool to measure the performance of the timeline server
> ------------------------------------------------------
>                 Key: YARN-2556
>                 URL: https://issues.apache.org/jira/browse/YARN-2556
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>            Reporter: Jonathan Eagles
>            Assignee: chang li
>         Attachments: YARN-2556-WIP.patch, yarn2556_wip.patch
> We need to be able to understand the capacity model for the timeline server 
> to give users the tools they need to deploy a timeline server with the 
> correct capacity.
> I propose we create a mapreduce job that can measure timeline server write 
> and read performance. Transactions per second, I/O for both read and write 
> would be a good start.
> This could be done as an example or test job that could be tied into gridmix.

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