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https://issues.apache.org/jira/browse/YARN-2517?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14128567#comment-14128567
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Tsuyoshi OZAWA commented on YARN-2517:
--------------------------------------

Thanks for your review, Zhijie. I think batch optimization and persisting 
entities can be done in sync client since the async client uses sync client. 

Submitting a patch again for merging. Please let me know if you have additional 
review comments.

> Implement TimelineClientAsync
> -----------------------------
>
>                 Key: YARN-2517
>                 URL: https://issues.apache.org/jira/browse/YARN-2517
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Zhijie Shen
>            Assignee: Tsuyoshi OZAWA
>         Attachments: YARN-2517.1.patch
>
>
> In some scenarios, we'd like to put timeline entities in another thread no to 
> block the current one.
> It's good to have a TimelineClientAsync like AMRMClientAsync and 
> NMClientAsync. It can buffer entities, put them in a separate thread, and 
> have callback to handle the responses.



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