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From "Sangjin Lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2928) Application Timeline Server (ATS) next gen: phase 1
Date Sat, 07 Mar 2015 00:07:41 GMT

    [ https://issues.apache.org/jira/browse/YARN-2928?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14351176#comment-14351176

Sangjin Lee commented on YARN-2928:

Thanks [~vinodkv] for putting the plan together! Some quick questions:

- Phase 1: what are the "ApplicationMaster events"? Is it the lifecycle of the AM container
or AMs like MR AMs emitting framework-specific events/metrics?
- Phase 3: would it be possible to pull in the RM events bit earlier than phase 3? I don't
think it would be that difficult to do, and it would serve as a very useful data point. Thoughts?
- Are we thinking of merging only after all phases are complete, or could there be meaningful
intermediate checkpoints we can merge? It would be good if we could achieve the latter.

> Application Timeline Server (ATS) next gen: phase 1
> ---------------------------------------------------
>                 Key: YARN-2928
>                 URL: https://issues.apache.org/jira/browse/YARN-2928
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: timelineserver
>            Reporter: Sangjin Lee
>            Assignee: Sangjin Lee
>            Priority: Critical
>         Attachments: ATSv2.rev1.pdf, ATSv2.rev2.pdf, Data model proposal v1.pdf, Timeline
Service Next Gen - Planning - ppt.pptx
> We have the application timeline server implemented in yarn per YARN-1530 and YARN-321.
Although it is a great feature, we have recognized several critical issues and features that
need to be addressed.
> This JIRA proposes the design and implementation changes to address those. This is phase
1 of this effort.

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