[jira] [Created] (HDFS-6741) Improve permission denied message when FSPermissionChecker#checkOwner fails

["Stephen Chu (JIRA)" <ji...@apache.org>]

Stephen Chu created HDFS-6741:
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             Summary: Improve permission denied message when FSPermissionChecker#checkOwner fails
                 Key: HDFS-6741
                 URL: https://issues.apache.org/jira/browse/HDFS-6741
             Project: Hadoop HDFS
          Issue Type: Improvement
    Affects Versions: 3.0.0, 2.5.0
            Reporter: Stephen Chu
            Assignee: Stephen Chu
            Priority: Minor


Currently, FSPermissionChecker#checkOwner throws an AccessControlException with a simple "Permission denied" message.

When users try to set an ACL without ownership permissions, they'll see something like:

{code}
[schu@hdfs-vanilla-1 hadoop]$ hdfs dfs -setfacl -m user:schu:--- /tmp
setfacl: Permission denied
{code}

It'd be helpful if the message had an explanation why the permission was denied to avoid confusion for users who aren't familiar with permissions.



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