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Posted to common-issues@hadoop.apache.org by "Binglin Chang (JIRA)" <ji...@apache.org> on 2013/01/04 08:30:15 UTC

[jira] [Updated] (HADOOP-9155) FsPermission should have different default value, 777 for directory and 666 for file

     [ https://issues.apache.org/jira/browse/HADOOP-9155?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Binglin Chang updated HADOOP-9155:
----------------------------------

    Attachment: HADOOP-9155.v3.patch

Thanks Aaron for the review.
New version of the patch, changes:
1. fix #1 in previous comment
2. replace all getDefault with getDirDefault when involving directory.
2. As for symlink, still use getDefault(for dir and symlink), cause "getDirDefault" is for directory only. So I'm not sure about deprecating getDefault, cause it still has some value for symlink. And since user can only create symlink with default permission, getDefault should only be used internally, but not deprecated?
                
> FsPermission should have different default value, 777 for directory and 666 for file
> ------------------------------------------------------------------------------------
>
>                 Key: HADOOP-9155
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9155
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.0.2-alpha
>            Reporter: Binglin Chang
>            Assignee: Binglin Chang
>            Priority: Minor
>         Attachments: HADOOP-9155.patch, HADOOP-9155.v2.patch, HADOOP-9155.v3.patch
>
>
> The default permission for {{FileSystem#create}} is the same default as for {{FileSystem#mkdirs}}, namely {{0777}}. It would make more sense for the default to be {{0666}} for files and {{0777}} for directories.  The current default leads to a lot of files being created with the executable bit that really should not be.  One example is anything created with FsShell's copyToLocal.
> For reference, {{fopen}} creates files with a mode of {{0666}} (minus whatever bits are set in the umask; usually {{0022}}.  This seems to be the standard behavior and we should follow it.  This is also a regression since branch-1.

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