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https://issues.apache.org/jira/browse/YARN-9858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16941732#comment-16941732
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Hudson commented on YARN-9858:
------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #17424 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/17424/])
YARN-9858. Optimize RMContext getExclusiveEnforcedPartitions. (bibinchundatt:
rev 425a6c89aedb4d5ad9a524c9f1e631eea2816f9c)
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMAppManager.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMContext.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/DefaultAMSProcessor.java
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMContextImpl.java
> Optimize RMContext getExclusiveEnforcedPartitions
> --------------------------------------------------
>
> Key: YARN-9858
> URL: https://issues.apache.org/jira/browse/YARN-9858
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Jonathan Hung
> Assignee: Jonathan Hung
> Priority: Major
> Labels: release-blocker
> Fix For: 2.10.0, 3.3.0, 3.2.2, 3.1.4
>
> Attachments: YARN-9858-branch-2.001.patch,
> YARN-9858-branch-3.1.001.patch, YARN-9858-branch-3.2.001.patch,
> YARN-9858.001.patch, YARN-9858.002.patch, YARN-9858.003.patch
>
>
> Follow-up from YARN-9730. RMContextImpl#getExclusiveEnforcedPartitions is a
> hot code path, need to optimize it .
> Since AMS allocate invoked by multiple handlers locking on conf will occur
> {code}
> java.lang.Thread.State: BLOCKED (on object monitor)
> at org.apache.hadoop.conf.Configuration.getProps(Configuration.java:2841)
> - waiting to lock <0x00007f1f8107c748> (a
> org.apache.hadoop.yarn.conf.YarnConfiguration)
> at org.apache.hadoop.conf.Configuration.get(Configuration.java:1214)
> at org.apache.hadoop.conf.Configuration.getTrimmed(Configuration.java:1268)
> {code}
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