David Mollitor created YARN-9845:
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Summary: Update to Use Java 8 Map Concurrent API
Key: YARN-9845
URL: https://issues.apache.org/jira/browse/YARN-9845
Project: Hadoop YARN
Issue Type: Improvement
Components: nodemanager
Affects Versions: 3.2.0
Reporter: David Mollitor
Assignee: David Mollitor
https://github.com/apache/hadoop/blob/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/localizer/LocalResourcesTrackerImpl.java#L467
Class is using a {{ConcurrentHashMap}} but is not taking advantage of it.
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