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From "BELUGA BEHR (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-9596) Remove "Shuffle" Method From DFSUtil
Date Fri, 01 Feb 2019 20:15:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-9596?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

BELUGA BEHR updated HDFS-9596:
    Status: Open  (was: Patch Available)

> Remove "Shuffle" Method From DFSUtil
> ------------------------------------
>                 Key: HDFS-9596
>                 URL: https://issues.apache.org/jira/browse/HDFS-9596
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: BELUGA BEHR
>            Assignee: BELUGA BEHR
>            Priority: Trivial
>         Attachments: HDFS-9596.2.patch, HDFS-9596.3.patch, 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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