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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-3078) bin/hadoop fs -chmod doesnot change execution permissions for files.
Date Mon, 24 Mar 2008 21:29:26 GMT

    [ 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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