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Posted to yarn-dev@hadoop.apache.org by "David Mollitor (Jira)" <ji...@apache.org> on 2019/09/19 17:39:00 UTC

[jira] [Created] (YARN-9845) Update to Use Java 8 Map Concurrent API

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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