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https://issues.apache.org/jira/browse/HDFS-7195?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chris Nauroth updated HDFS-7195:
--------------------------------
    Attachment: HDFS-7195.1.patch

Thank you for filing this issue, Yi.  I've been meaning to do this, and seeing 
the jira get filed gave me a nudge to get it done.  :-)  I've attached a patch 
with changes in the Secure Mode documentation to cover the new feature.  While 
I was in here, I also fixed a minor formatting problem in the Proxy User 
section.  (You can see the problem in the current published version.)  I also 
attached a tarball with a full site build to demonstrate the changes.

> Update user doc of secure mode about Datanodes don't require root or jsvc
> -------------------------------------------------------------------------
>
>                 Key: HDFS-7195
>                 URL: https://issues.apache.org/jira/browse/HDFS-7195
>             Project: Hadoop HDFS
>          Issue Type: Task
>          Components: security
>            Reporter: Yi Liu
>            Assignee: Chris Nauroth
>         Attachments: HDFS-7195.1.patch, hadoop-site.tar.bz2
>
>
> HDFS-2856 adds support that Datanodes don't require root or jsvc. If 
> {{dfs.data.transfer.protection}} is configured and {{dfs.http.policy}} is 
> _HTTPS_ONLY_, then secure dataNode doesn't need to use privileged port.
> This has not been updated in the latest user doc of secure mode. This JIRA is 
> to fix that.



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