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https://issues.apache.org/jira/browse/YARN-2352?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14090846#comment-14090846
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Hudson commented on YARN-2352:
------------------------------

FAILURE: Integrated in Hadoop-trunk-Commit #6037 (See 
[https://builds.apache.org/job/Hadoop-trunk-Commit/6037/])
YARN-2352. Add missing file. FairScheduler: Collect metrics on duration of 
critical methods that affect performance. (kasha) (kasha: 
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1616784)
* 
/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FSOpDurations.java
YARN-2352. FairScheduler: Collect metrics on duration of critical methods that 
affect performance. (kasha) (kasha: 
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1616769)
* 
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/impl/MetricsCollectorImpl.java
* 
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/lib/MutableStat.java
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
* 
/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/dev-support/findbugs-exclude.xml
* 
/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FairScheduler.java
* 
/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/TestFairScheduler.java


> FairScheduler: Collect metrics on duration of critical methods that affect 
> performance
> --------------------------------------------------------------------------------------
>
>                 Key: YARN-2352
>                 URL: https://issues.apache.org/jira/browse/YARN-2352
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: scheduler
>    Affects Versions: 2.4.1
>            Reporter: Karthik Kambatla
>            Assignee: Karthik Kambatla
>         Attachments: fs-perf-metrics.png, yarn-2352-1.patch, 
> yarn-2352-2.patch, yarn-2352-2.patch, yarn-2352-3.patch, yarn-2352-4.patch, 
> yarn-2352-5.patch, yarn-2352-6.patch
>
>
> We need more metrics for better visibility into FairScheduler performance. At 
> the least, we need to do this for (1) handle node events, (2) update, (3) 
> compute fairshares, (4) preemption.



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