BELUGA BEHR created HDFS-9596:
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Summary: Remove "Shuffle" Method From DFSUtil
Key: HDFS-9596
URL: https://issues.apache.org/jira/browse/HDFS-9596
Project: Hadoop HDFS
Issue Type: Improvement
Affects Versions: 2.7.1
Reporter: BELUGA BEHR
Priority: Trivial
Attachments: Shuffle.HDFS-9596.patch
DFSUtil contains a "shuffle" routine that shuffles arrays. With a little
wrapping, Java Collections class can shuffle. This code is superfluous and
undocumented. The method returns an array, though it does not specify if it
returns the same array or a new, copy, array of shuffled items.
It is only used in one place, so it is better to simply remove and substitute
this implementation with the java Collections implementation.
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