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https://issues.apache.org/jira/browse/YARN-3815?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14598781#comment-14598781
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Ted Yu commented on YARN-3815:
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[~jrottinghuis]:
Your description makes sense.
Cell tag is supported since hbase 0.98+ so we can use it to mark completion.
> [Aggregation] Application/Flow/User/Queue Level Aggregations
> ------------------------------------------------------------
>
> Key: YARN-3815
> URL: https://issues.apache.org/jira/browse/YARN-3815
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineserver
> Reporter: Junping Du
> Assignee: Junping Du
> Priority: Critical
> Attachments: Timeline Service Nextgen Flow, User, Queue Level
> Aggregations (v1).pdf
>
>
> Per previous discussions in some design documents for YARN-2928, the basic
> scenario is the query for stats can happen on:
> - Application level, expect return: an application with aggregated stats
> - Flow level, expect return: aggregated stats for a flow_run, flow_version
> and flow
> - User level, expect return: aggregated stats for applications submitted by
> user
> - Queue level, expect return: aggregated stats for applications within the
> Queue
> Application states is the basic building block for all other level
> aggregations. We can provide Flow/User/Queue level aggregated statistics info
> based on application states (a dedicated table for application states is
> needed which is missing from previous design documents like HBase/Phoenix
> schema design).
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