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Date: Tue, 12 Feb 2008 10:23:08 -0800 (PST)
From: "Robert Chansler (JIRA)" <jira@apache.org>
To: core-dev@hadoop.apache.org
Subject: [jira] Updated: (HADOOP-2371) Candidate user guide for permissions
 feature of Hadoop DFS
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     [ https://issues.apache.org/jira/browse/HADOOP-2371?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Chansler updated HADOOP-2371:
------------------------------------

    Attachment: hdfs_permissions_guide.html

Attached compiled page corresponding to the patch for the convenience of reviewers.

> Candidate user guide for permissions feature of Hadoop DFS
> ----------------------------------------------------------
>
>                 Key: HADOOP-2371
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2371
>             Project: Hadoop Core
>          Issue Type: New Feature
>          Components: dfs
>    Affects Versions: 0.16.0
>            Reporter: Robert Chansler
>            Assignee: Robert Chansler
>             Fix For: 0.16.1
>
>         Attachments: Grid_HadoopPermissionsUserGuide1.pdf, hadoopPerm.patch, hdfs_permissions_guide.html
>
>
> This feature introduces a POSIX-like permissions model for DFS in Hadoop 0.16. The user guide describes the behavior users of DFS will experience. In this release, the user identity model is very elementary: you are who your host says you are. It is understood that this is not "secure" in any meaningful sense, but rather the permissions model allows a cooperative community to share file system resources in an organized fashion. The user identity model will evolve in the coming months.
> As mentioned in the draft, the content of the guide will be incorporated into the regular Hadoop documentation from Forrest. This document is being published as an early preview.

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