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https://issues.apache.org/jira/browse/YARN-3391?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14390936#comment-14390936
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Junping Du commented on YARN-3391:
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Thanks [~sjlee0] for reply quickly! That helps a lot. I initially thought flow
run is a run instance (may from YARN-2928 design doc or somewhere) but get
confused to something else when I saw flow version. Thanks for bringing me
back. :)
Given other contributors could miss discussions here, I would suggest we add
Javadoc to explain these somewhere, e.g. in TimelineCollectorContext.java.
> Clearly define flow ID/ flow run / flow version in API and storage
> ------------------------------------------------------------------
>
> Key: YARN-3391
> URL: https://issues.apache.org/jira/browse/YARN-3391
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineserver
> Reporter: Zhijie Shen
> Assignee: Zhijie Shen
> Attachments: YARN-3391.1.patch
>
>
> To continue the discussion in YARN-3040, let's figure out the best way to
> describe the flow.
> Some key issues that we need to conclude on:
> - How do we include the flow version in the context so that it gets passed
> into the collector and to the storage eventually?
> - Flow run id should be a number as opposed to a generic string?
> - Default behavior for the flow run id if it is missing (i.e. client did not
> set it)
> - How do we handle flow attributes in case of nested levels of flows?
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