[HDFS-6741] Improve permission denied message when FSPermissionChecker#checkOwner fails

• Type: Improvement
• Status: Closed
• Priority: Trivial
• Resolution: Fixed
• Affects Version/s: 2.5.0, 3.0.0-alpha1
• Fix Version/s: 2.7.0
• Labels: supportability
• Hadoop Flags: Reviewed
• Assignee: Harsh J
• Reporter: Stephen Chu
• Created: 24/Jul/14 02:48
• Updated: 12/May/16 18:14
• Resolved: 28/Oct/14 06:55

Description

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:

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

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.

Issue Links

• is duplicated by: HDFS-7292 Improve error messages for checkOwner permission related failures