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https://issues.apache.org/jira/browse/YARN-3817?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14589932#comment-14589932
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Junping Du commented on YARN-3817:
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Upload proposal for flow and user aggregation in detail. Comments are welcomed!

> [Aggregation] Flow and User level aggregation on Application States table
> -------------------------------------------------------------------------
>
>                 Key: YARN-3817
>                 URL: https://issues.apache.org/jira/browse/YARN-3817
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>            Reporter: Junping Du
>            Assignee: Junping Du
>         Attachments: Detail Design for Flow and User Level Aggregation.pdf
>
>
> We need flow/user level aggregation to present flow/user related states to 
> end users.
> Flow level aggregation involve three levels aggregations:
> - The first level is Flow_run level which represents one execution of a flow 
> and shows exactly aggregated data for a run of flow.
> - The 2nd level is Flow_version level which represents summary info of a 
> version of flow.
> - The 3rd level is Flow level which represents summary info of a specific 
> flow.
> User level aggregation represents summary info of a specific user, it should 
> include summary info of accumulated and statistic means (by two levels: 
> application and flow), like: number of Flows, applications, resource 
> consumption, resource means per app or flow, etc. 



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