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https://issues.apache.org/jira/browse/HADOOP-11970?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14545081#comment-14545081
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Sean Busbey commented on HADOOP-11970:
--------------------------------------
remaining checkstyle warnings are
{quote}
./hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSClient.java:1:
File length is 3,251 lines (max allowed is 2,000).
./hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java:1:
File length is 3,842 lines (max allowed is 2,000).
{quote}
refactoring DFSClient and BlockManager to be ~half the size is (hopefully) out
of scope?
> 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
> Attachments: HADOOP-11970.1.patch, HADOOP-11970.2.patch,
> HADOOP-11970.3.patch
>
>
> 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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