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https://issues.apache.org/jira/browse/YARN-3874?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14727719#comment-14727719
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Junping Du commented on YARN-3874:
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Hi [~ozawa] and [~varun_saxena], thanks for asking me for ideas. In my 
understanding, FS Writer and Reader in Timeline v2 is mostly used for early 
prototype in our PoC stage 1 which have many significant limitations to go to 
production. We almost only use it for testing purpose. Do you have any solid 
scenarios and cases that need this feature to work with optimization?
IMO, our priority in YARN-2928 branch now is app/flow/ aggregation, Reader 
refactor, REST API, WEB UI, but not include enhancing corner/test cases. 
[~sjlee0], what's your opinion on this?

> Optimize and synchronize FS Reader and Writer Implementations
> -------------------------------------------------------------
>
>                 Key: YARN-3874
>                 URL: https://issues.apache.org/jira/browse/YARN-3874
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>    Affects Versions: YARN-2928
>            Reporter: Varun Saxena
>            Assignee: Varun Saxena
>         Attachments: YARN-3874-YARN-2928.01.patch, 
> YARN-3874-YARN-2928.02.patch, YARN-3874-YARN-2928.03.patch
>
>
> Combine FS Reader and Writer Implementations and make them consistent with 
> each other.



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