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From "Chris Nauroth (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-9552) Document types of permission checks performed for HDFS operations.
Date Wed, 16 Dec 2015 23:20:46 GMT

     [ https://issues.apache.org/jira/browse/HDFS-9552?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chris Nauroth updated HDFS-9552:
--------------------------------
    Attachment: HDFS-9552.003.patch

bq. Nitpick you may consider fixing during commit, source should be sources since the check
is enforced for each source file.

That's a good idea.  Thanks!  Here is patch v003 with that change.

> Document types of permission checks performed for HDFS operations.
> ------------------------------------------------------------------
>
>                 Key: HDFS-9552
>                 URL: https://issues.apache.org/jira/browse/HDFS-9552
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: documentation
>            Reporter: Chris Nauroth
>            Assignee: Chris Nauroth
>         Attachments: HDFS-9552.001.patch, HDFS-9552.002.patch, HDFS-9552.003.patch, hadoop-site.tar.bz2
>
>
> The HDFS permissions guide discusses our use of a POSIX-like model with read, write and
execute permissions associated with users, groups and the catch-all other class.  However,
there is no documentation that describes exactly what permission checks are performed by user-facing
HDFS operations.  This is a frequent source of questions, so it would be good to document
this.



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