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Date: Thu, 12 May 2011 21:07:47 +0000 (UTC)
From: "Daryn Sharp (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
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Subject: [jira] [Commented] (HDFS-1869) mkdirs should use the supplied
 permission for all of the created directories
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    [ https://issues.apache.org/jira/browse/HDFS-1869?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13032679#comment-13032679 ] 

Daryn Sharp commented on HDFS-1869:
-----------------------------------

Creating a multi-level dir with 0600 creates all dirs with 0600 -- will post test shortly.  So it works as expected in the aspect of "you get the permissions you asked for".

It's neglecting to implicitly add u+rx.  In unix this is required since mkdir -p does a series of mkdir/chdir, so u+rx is required to do the chdir calls.  In hdfs it's not necessary since it verifies permissions in the directory where the mkdir originates, and then creates all the dirs with no permission checking.  Do want the u+rx behavior added too?  If so, would it be ok to be done on a separate jira?

> mkdirs should use the supplied permission for all of the created directories
> ----------------------------------------------------------------------------
>
>                 Key: HDFS-1869
>                 URL: https://issues.apache.org/jira/browse/HDFS-1869
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: name-node
>    Affects Versions: 0.23.0
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>         Attachments: HDFS-1869.patch
>
>
> Mkdirs only uses the supplied FsPermission for the last directory of the path.  Paths 0..N-1 will all inherit the parent dir's permissions -even if- inheritPermission is false.  This is a regression from somewhere around 0.20.9 and does not follow posix semantics.

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