[jira] [Commented] (YARN-3461) Consolidate flow name/version/run defaults

["Sangjin Lee (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-3461?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15227276#comment-15227276 ] 

Sangjin Lee commented on YARN-3461:
-----------------------------------

Posted patch v.1.

I am proposing essentially the original default proposal again as in the [design document|https://issues.apache.org/jira/secure/attachment/12691416/ATSv2.rev2.pdf]. Namely,
- flow name: the YARN app name (or the app id if the YARN app name is not set)
- flow version: "1"
- flow run id: the YARN app start time

I think this will cover most of the important use cases (e.g. old MR jobs that do not specify flows) and keep things simple enough. What Junping suggested above sounds reasonable and may add value for certain cases. However, I think there is something to be said about keeping things simple at this point. We could consider making this more configurable if such a need is identified later.

Let me know what you think. Also a review is greatly appreciated. Thanks!

> Consolidate flow name/version/run defaults
> ------------------------------------------
>
>                 Key: YARN-3461
>                 URL: https://issues.apache.org/jira/browse/YARN-3461
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>            Reporter: Zhijie Shen
>            Assignee: Sangjin Lee
>              Labels: yarn-2928-1st-milestone
>         Attachments: YARN-3461-YARN-2928.01.patch
>
>
> In YARN-3391, it's not resolved what should be the defaults for flow name/version/run. Let's continue the discussion here and unblock YARN-3391 from moving forward.



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