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https://issues.apache.org/jira/browse/YARN-9858?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Hung updated YARN-9858:
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Attachment: YARN-9858.003.patch
> 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
> Attachments: 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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