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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3815) [Aggregation] Application/Flow/User/Queue Level Aggregations
Date Wed, 24 Jun 2015 02:56:44 GMT

    [ https://issues.apache.org/jira/browse/YARN-3815?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14598781#comment-14598781
] 

Ted Yu commented on YARN-3815:
------------------------------

[~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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