[jira] [Created] (HDFS-4439) umask-mode does not support 4-digit umask value

["Andy Isaacson (JIRA)" <ji...@apache.org>]

Andy Isaacson created HDFS-4439:
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             Summary: umask-mode does not support 4-digit umask value
                 Key: HDFS-4439
                 URL: https://issues.apache.org/jira/browse/HDFS-4439
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: hdfs-client
    Affects Versions: 3.0.0
            Reporter: Andy Isaacson


Best practice for specifying file permissions using the legacy octal format is to always add a leading "0" to ensure the value is treated as octal.  However the {{fs.permissions.umask-mode}} parsing code throws an error when given a 4-digit string:
{code}
$ hdfs dfs -Dfs.permissions.umask-mode=0000 -touchz foo.txt
2013-01-24 12:49:02,352 WARN  permission.FsPermission (FsPermission.java:getUMask(245)) - Unable to parse configuration fs.permissions.umask-mode with value 0000 as octal or symbolic umask.
-touchz: Unable to parse configuration fs.permissions.umask-mode with value 0000 as octal or symbolic umask.
Usage: hadoop fs [generic options] -touchz <path> ...
{code}

There's no downside to supporting {{0000}}, so hdfs should handle it gracefully.

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