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https://issues.apache.org/jira/browse/YARN-7401?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16243093#comment-16243093
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Hudson commented on YARN-7401:
------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #13196 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/13196/])
YARN-7401. Reduce lock contention in (templedf: rev
8db9d61ac2e04888cb228b29fe54b41c730cf0e6)
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/ClusterNodeTracker.java
> Reduce lock contention in ClusterNodeTracker#getClusterCapacity()
> -----------------------------------------------------------------
>
> Key: YARN-7401
> URL: https://issues.apache.org/jira/browse/YARN-7401
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: resourcemanager
> Affects Versions: 3.1.0
> Reporter: Daniel Templeton
> Assignee: Daniel Templeton
> Fix For: 3.0.0, 3.1.0
>
> Attachments: YARN-7401.001.patch, YARN-7401.002.patch
>
>
> Profiling the code shows massive latency in
> {{ClusterNodeTracker.getClusterCapacity()}} on getting the lock.
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