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https://issues.apache.org/jira/browse/YARN-3092?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14293318#comment-14293318
 ] 

Hudson commented on YARN-3092:
------------------------------

FAILURE: Integrated in Hadoop-Yarn-trunk-Java8 #86 (See 
[https://builds.apache.org/job/Hadoop-Yarn-trunk-Java8/86/])
YARN-3092. Created a common ResourceUsage class to track labeled resource 
usages in Capacity Scheduler. Contributed by Wangda Tan (jianhe: rev 
6f9fe76918bbc79109653edc6cde85df05148ba3)
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/TestResourceUsage.java
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/ResourceUsage.java
* hadoop-yarn-project/CHANGES.txt


> Create common ResourceUsage class to track labeled resource usages in 
> Capacity Scheduler
> ----------------------------------------------------------------------------------------
>
>                 Key: YARN-3092
>                 URL: https://issues.apache.org/jira/browse/YARN-3092
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: api, client, resourcemanager
>            Reporter: Wangda Tan
>            Assignee: Wangda Tan
>             Fix For: 2.7.0
>
>         Attachments: YARN-3092.1.patch, YARN-3092.2.patch
>
>
> Since we have labels on nodes, so we need to track resource usage *by 
> labels*, includes
> - AM resource (to enforce max-am-resource-by-label after YARN-2637)
> - Used resource (includes AM resource usage)
> - Reserved resource
> - Pending resource
> - Headroom
> Benefits to have such a common class are:
> - Reuse lots of code in different places (Queue/App/User), better 
> maintainability and readability.
> - Can make fine-grained locking (e.g. accessing used resource in a queue 
> doesn't need lock a queue)



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