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https://issues.apache.org/jira/browse/HDFS-9048?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15153597#comment-15153597
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Wei-Chiu Chuang commented on HDFS-9048:
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I think it's fine to commit this in 2.x. webhdfs is preferred than hftp even in
2.x.
However, webhdfs, unlike hftp, supports both read and write. So distcp does not
need to run on destination cluster.
> DistCp documentation is out-of-dated
> ------------------------------------
>
> Key: HDFS-9048
> URL: https://issues.apache.org/jira/browse/HDFS-9048
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Haohui Mai
> Assignee: Daisuke Kobayashi
> Attachments: HDFS-9048.patch
>
>
> There are a couple issues with the current distcp document:
> * It recommends hftp / hsftp filesystem to copy data between different hadoop
> version. hftp / hsftp have been deprecated in the flavor of webhdfs.
> * If the users are copying between Hadoop 2.x they can use the hdfs protocol
> directly for better performance.
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