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From "Tsuyoshi OZAWA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2517) Implement TimelineClientAsync
Date Tue, 09 Sep 2014 03:54:32 GMT

    [ https://issues.apache.org/jira/browse/YARN-2517?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14126557#comment-14126557
] 

Tsuyoshi OZAWA commented on YARN-2517:
--------------------------------------

As Zhijie mentioned, we should have the callback if we need to check errors. IMHO, if we have
a thread for the callback "onError", we should also have "onEntitiesPut" since the complexity
doesn't increase so much and it's useful to distinguish connection-level exceptions from entity-level
errors.

> 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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