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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1493) Schedulers don't recognize apps separately from app-attempts
Date Mon, 16 Dec 2013 22:51:07 GMT

    [ https://issues.apache.org/jira/browse/YARN-1493?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13849824#comment-13849824
] 

Vinod Kumar Vavilapalli commented on YARN-1493:
-----------------------------------------------

>From what I can see, this patch is clearly conflicting with YARN-1446. Linking tickets.

> Schedulers don't recognize apps separately from app-attempts
> ------------------------------------------------------------
>
>                 Key: YARN-1493
>                 URL: https://issues.apache.org/jira/browse/YARN-1493
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Jian He
>            Assignee: Jian He
>         Attachments: YARN-1493.1.patch
>
>
> Today, scheduler is tied to attempt only.
> We need to separate app-level handling logic in scheduler. We can add new app-level events
to the scheduler and separate the app-level logic out. This is good for work-preserving AM
restart, RM restart, and also needed for differentiating app-level metrics and attempt-level
metrics.



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