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bin/hadoop fs -chmod doesnot change execution permissions for files.
--------------------------------------------------------------------

Key: HADOOP-3078
URL: https://issues.apache.org/jira/browse/HADOOP-3078
Project: Hadoop Core
Issue Type: Bug
Affects Versions: 0.16.0
Reporter: Amareshwari Sriramadasu



bin/hadoop fs -chmod doesnt change execution permissions for files.

I have two files in scripts directory
$ hadoop fs -lsr scripts
/user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
/user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup

When i ran -chmod 777 on the file, file has only read permissions but no execution permissions.
$ hadoop fs -chmod 777 /user/amarsri/scripts/my.pl
$ hadoop fs -lsr scripts
/user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
/user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup

When I do -chmod -R 777 on the directory, permissions are given to the directory, and the directories inside them, but files dont get execution permissions.
$ hadoop fs -chmod -R 777 /user/amarsri/scripts/
$ hadoop fs -lsr scripts
/user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
/user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
"$hadoop fs -ls" lists scripts as the following.
/user/amarsri/scripts <dir> 2008-03-24 14:39 rwxrwxrwx amarsri supergroup


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  • Amareshwari Sriramadasu (JIRA) at Mar 24, 2008 at 9:35 am
    [ https://issues.apache.org/jira/browse/HADOOP-3078?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

    Amareshwari Sriramadasu updated HADOOP-3078:
    --------------------------------------------

    Component/s: dfs
    Description:
    bin/hadoop fs -chmod doesnt change execution permissions for files.

    I have two files in scripts directory
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup

    When i ran -chmod 777 on the file, file has only read permissions but no execution permissions.
    $ hadoop fs -chmod 777 /user/amarsri/scripts/my.pl
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup

    When I do -chmod -R 777 on the directory, permissions are given to the directory, and the directories inside them, but files dont get execution permissions.
    $ hadoop fs -chmod -R 777 /user/amarsri/scripts/
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    "$hadoop fs -ls" lists scripts as the following.
    /user/amarsri/scripts <dir> 2008-03-24 14:39 rwxrwxrwx amarsri supergroup


    was:

    bin/hadoop fs -chmod doesnt change execution permissions for files.

    I have two files in scripts directory
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup

    When i ran -chmod 777 on the file, file has only read permissions but no execution permissions.
    $ hadoop fs -chmod 777 /user/amarsri/scripts/my.pl
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup

    When I do -chmod -R 777 on the directory, permissions are given to the directory, and the directories inside them, but files dont get execution permissions.
    $ hadoop fs -chmod -R 777 /user/amarsri/scripts/
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    "$hadoop fs -ls" lists scripts as the following.
    /user/amarsri/scripts <dir> 2008-03-24 14:39 rwxrwxrwx amarsri supergroup


    bin/hadoop fs -chmod doesnot change execution permissions for files.
    --------------------------------------------------------------------

    Key: HADOOP-3078
    URL: https://issues.apache.org/jira/browse/HADOOP-3078
    Project: Hadoop Core
    Issue Type: Bug
    Components: dfs
    Affects Versions: 0.16.0
    Reporter: Amareshwari Sriramadasu

    bin/hadoop fs -chmod doesnt change execution permissions for files.
    I have two files in scripts directory
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    When i ran -chmod 777 on the file, file has only read permissions but no execution permissions.
    $ hadoop fs -chmod 777 /user/amarsri/scripts/my.pl
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    When I do -chmod -R 777 on the directory, permissions are given to the directory, and the directories inside them, but files dont get execution permissions.
    $ hadoop fs -chmod -R 777 /user/amarsri/scripts/
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    "$hadoop fs -ls" lists scripts as the following.
    /user/amarsri/scripts <dir> 2008-03-24 14:39 rwxrwxrwx amarsri supergroup
    --
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  • Robert Chansler (JIRA) at Mar 24, 2008 at 5:29 pm
    [ https://issues.apache.org/jira/browse/HADOOP-3078?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

    Robert Chansler resolved HADOOP-3078.
    -------------------------------------

    Resolution: Invalid

    Files do not have an execute permission. (Directories _do_ have an execute permission.)
    From the user guide:
    " In contrast to the POSIX model, there are no sticky, setuid
    or setgid bits for files as there is no notion of executable files."
    bin/hadoop fs -chmod doesnot change execution permissions for files.
    --------------------------------------------------------------------

    Key: HADOOP-3078
    URL: https://issues.apache.org/jira/browse/HADOOP-3078
    Project: Hadoop Core
    Issue Type: Bug
    Components: dfs
    Affects Versions: 0.16.0
    Reporter: Amareshwari Sriramadasu

    bin/hadoop fs -chmod doesnt change execution permissions for files.
    I have two files in scripts directory
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    When i ran -chmod 777 on the file, file has only read permissions but no execution permissions.
    $ hadoop fs -chmod 777 /user/amarsri/scripts/my.pl
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    When I do -chmod -R 777 on the directory, permissions are given to the directory, and the directories inside them, but files dont get execution permissions.
    $ hadoop fs -chmod -R 777 /user/amarsri/scripts/
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    "$hadoop fs -ls" lists scripts as the following.
    /user/amarsri/scripts <dir> 2008-03-24 14:39 rwxrwxrwx amarsri supergroup
    --
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  • Raghu Angadi (JIRA) at Mar 24, 2008 at 5:47 pm
    [ https://issues.apache.org/jira/browse/HADOOP-3078?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12581619#action_12581619 ]

    Raghu Angadi commented on HADOOP-3078:
    --------------------------------------

    At the least, it is confusing to the user. 'x' is something user sets (unlike 'd'), I wonder why it is disallowed for files in HDFS.
    bin/hadoop fs -chmod doesnot change execution permissions for files.
    --------------------------------------------------------------------

    Key: HADOOP-3078
    URL: https://issues.apache.org/jira/browse/HADOOP-3078
    Project: Hadoop Core
    Issue Type: Bug
    Components: dfs
    Affects Versions: 0.16.0
    Reporter: Amareshwari Sriramadasu

    bin/hadoop fs -chmod doesnt change execution permissions for files.
    I have two files in scripts directory
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    When i ran -chmod 777 on the file, file has only read permissions but no execution permissions.
    $ hadoop fs -chmod 777 /user/amarsri/scripts/my.pl
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    When I do -chmod -R 777 on the directory, permissions are given to the directory, and the directories inside them, but files dont get execution permissions.
    $ hadoop fs -chmod -R 777 /user/amarsri/scripts/
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    "$hadoop fs -ls" lists scripts as the following.
    /user/amarsri/scripts <dir> 2008-03-24 14:39 rwxrwxrwx amarsri supergroup
    --
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  • Raghu Angadi (JIRA) at Mar 24, 2008 at 5:49 pm
    [ https://issues.apache.org/jira/browse/HADOOP-3078?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12581620#action_12581620 ]

    Raghu Angadi commented on HADOOP-3078:
    --------------------------------------

    Also, 'fs -help chmod' needs to be updated to reflect this, at the time it was written, I didn't know DFS ignores 'x' on files. My preferred fix would be not to ignore it.

    bin/hadoop fs -chmod doesnot change execution permissions for files.
    --------------------------------------------------------------------

    Key: HADOOP-3078
    URL: https://issues.apache.org/jira/browse/HADOOP-3078
    Project: Hadoop Core
    Issue Type: Bug
    Components: dfs
    Affects Versions: 0.16.0
    Reporter: Amareshwari Sriramadasu

    bin/hadoop fs -chmod doesnt change execution permissions for files.
    I have two files in scripts directory
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    When i ran -chmod 777 on the file, file has only read permissions but no execution permissions.
    $ hadoop fs -chmod 777 /user/amarsri/scripts/my.pl
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    When I do -chmod -R 777 on the directory, permissions are given to the directory, and the directories inside them, but files dont get execution permissions.
    $ hadoop fs -chmod -R 777 /user/amarsri/scripts/
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    "$hadoop fs -ls" lists scripts as the following.
    /user/amarsri/scripts <dir> 2008-03-24 14:39 rwxrwxrwx amarsri supergroup
    --
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  • Tsz Wo (Nicholas), SZE (JIRA) at Mar 24, 2008 at 9:31 pm
    [ https://issues.apache.org/jira/browse/HADOOP-3078?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12581676#action_12581676 ]

    Tsz Wo (Nicholas), SZE commented on HADOOP-3078:
    ------------------------------------------------
    At the least, it is confusing to the user. 'x' is something user sets (unlike 'd'), I wonder why it is disallowed for files in HDFS.
    In Hadoop, all files are non-executable (which is different from Unix). So there is no 'x' bit.
    bin/hadoop fs -chmod doesnot change execution permissions for files.
    --------------------------------------------------------------------

    Key: HADOOP-3078
    URL: https://issues.apache.org/jira/browse/HADOOP-3078
    Project: Hadoop Core
    Issue Type: Bug
    Components: dfs
    Affects Versions: 0.16.0
    Reporter: Amareshwari Sriramadasu

    bin/hadoop fs -chmod doesnt change execution permissions for files.
    I have two files in scripts directory
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    When i ran -chmod 777 on the file, file has only read permissions but no execution permissions.
    $ hadoop fs -chmod 777 /user/amarsri/scripts/my.pl
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    When I do -chmod -R 777 on the directory, permissions are given to the directory, and the directories inside them, but files dont get execution permissions.
    $ hadoop fs -chmod -R 777 /user/amarsri/scripts/
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    "$hadoop fs -ls" lists scripts as the following.
    /user/amarsri/scripts <dir> 2008-03-24 14:39 rwxrwxrwx amarsri supergroup
    --
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  • Raghu Angadi (JIRA) at Mar 24, 2008 at 10:01 pm
    [ https://issues.apache.org/jira/browse/HADOOP-3078?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12581692#action_12581692 ]

    Raghu Angadi commented on HADOOP-3078:
    --------------------------------------

    Well, I don't think executable is real file system property. It is a file property interpreted by the operating system (and security layer). The fact that HDFS does not need it IMHO is not a good reason to restrict the users. If there is an improvement (either internal or user facing) because of not allowing this flag I would like to know.
    bin/hadoop fs -chmod doesnot change execution permissions for files.
    --------------------------------------------------------------------

    Key: HADOOP-3078
    URL: https://issues.apache.org/jira/browse/HADOOP-3078
    Project: Hadoop Core
    Issue Type: Bug
    Components: dfs
    Affects Versions: 0.16.0
    Reporter: Amareshwari Sriramadasu

    bin/hadoop fs -chmod doesnt change execution permissions for files.
    I have two files in scripts directory
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    When i ran -chmod 777 on the file, file has only read permissions but no execution permissions.
    $ hadoop fs -chmod 777 /user/amarsri/scripts/my.pl
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    When I do -chmod -R 777 on the directory, permissions are given to the directory, and the directories inside them, but files dont get execution permissions.
    $ hadoop fs -chmod -R 777 /user/amarsri/scripts/
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    "$hadoop fs -ls" lists scripts as the following.
    /user/amarsri/scripts <dir> 2008-03-24 14:39 rwxrwxrwx amarsri supergroup
    --
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  • Mahadev konar (JIRA) at Mar 24, 2008 at 10:13 pm
    [ https://issues.apache.org/jira/browse/HADOOP-3078?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12581694#action_12581694 ]

    Mahadev konar commented on HADOOP-3078:
    ---------------------------------------

    a useful example where x perms would be useful is mounting hdfs as a fuse module...

    bin/hadoop fs -chmod doesnot change execution permissions for files.
    --------------------------------------------------------------------

    Key: HADOOP-3078
    URL: https://issues.apache.org/jira/browse/HADOOP-3078
    Project: Hadoop Core
    Issue Type: Bug
    Components: dfs
    Affects Versions: 0.16.0
    Reporter: Amareshwari Sriramadasu

    bin/hadoop fs -chmod doesnt change execution permissions for files.
    I have two files in scripts directory
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    When i ran -chmod 777 on the file, file has only read permissions but no execution permissions.
    $ hadoop fs -chmod 777 /user/amarsri/scripts/my.pl
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    When I do -chmod -R 777 on the directory, permissions are given to the directory, and the directories inside them, but files dont get execution permissions.
    $ hadoop fs -chmod -R 777 /user/amarsri/scripts/
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    "$hadoop fs -ls" lists scripts as the following.
    /user/amarsri/scripts <dir> 2008-03-24 14:39 rwxrwxrwx amarsri supergroup
    --
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  • Amareshwari Sriramadasu (JIRA) at Mar 25, 2008 at 4:21 am
    [ https://issues.apache.org/jira/browse/HADOOP-3078?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12581771#action_12581771 ]

    Amareshwari Sriramadasu commented on HADOOP-3078:
    -------------------------------------------------

    bq.Also, 'fs -help chmod' needs to be updated to reflect this, at the time it was written, I didn't know DFS ignores 'x' on files.
    +1
    bin/hadoop fs -chmod doesnot change execution permissions for files.
    --------------------------------------------------------------------

    Key: HADOOP-3078
    URL: https://issues.apache.org/jira/browse/HADOOP-3078
    Project: Hadoop Core
    Issue Type: Bug
    Components: dfs
    Affects Versions: 0.16.0
    Reporter: Amareshwari Sriramadasu

    bin/hadoop fs -chmod doesnt change execution permissions for files.
    I have two files in scripts directory
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    When i ran -chmod 777 on the file, file has only read permissions but no execution permissions.
    $ hadoop fs -chmod 777 /user/amarsri/scripts/my.pl
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-r--r-- amarsri supergroup
    When I do -chmod -R 777 on the directory, permissions are given to the directory, and the directories inside them, but files dont get execution permissions.
    $ hadoop fs -chmod -R 777 /user/amarsri/scripts/
    $ hadoop fs -lsr scripts
    /user/amarsri/scripts/my.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    /user/amarsri/scripts/xyz.pl <r 3> 146 2008-03-24 14:39 rw-rw-rw- amarsri supergroup
    "$hadoop fs -ls" lists scripts as the following.
    /user/amarsri/scripts <dir> 2008-03-24 14:39 rwxrwxrwx amarsri supergroup
    --
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    You can reply to this email to add a comment to the issue online.

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