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https://issues.apache.org/jira/browse/YARN-1493?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13851069#comment-13851069
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Sandy Ryza commented on YARN-1493:
----------------------------------
I took another look at the patch and noticed something else - is the app
removed from the scheduler in all cases when the . I.e. I don't see an
AppRemovedSchedulerEvent fired during an AppKilledTransition.
{code}
+ app.handler.handle(new AppRemovedSchedulerEvent(app.applicationId, app
+ .getState()));
{code}
Still a few places where second line only has two instead of four spaces of
indentation.
> 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, YARN-1493.2.patch, YARN-1493.3.patch,
> YARN-1493.4.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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