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Posted to common-issues@hadoop.apache.org by "Sean Busbey (JIRA)" <ji...@apache.org> on 2015/05/14 16:31:00 UTC

[jira] [Created] (HADOOP-11970) Replace uses of ThreadLocal with ThreadLocalRandom on branches that are JDK7+

Sean Busbey created HADOOP-11970:
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             Summary: Replace uses of ThreadLocal<Random> with ThreadLocalRandom on branches that are JDK7+
                 Key: HADOOP-11970
                 URL: https://issues.apache.org/jira/browse/HADOOP-11970
             Project: Hadoop Common
          Issue Type: Improvement
            Reporter: Sean Busbey
            Assignee: Sean Busbey


ThreadLocalRandom should be used when available in place of ThreadLocal<Random>. For JDK7 the difference is minimal, but JDK8 starts including optimizations for ThreadLocalRandom.



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