[HADOOP-10887] Add XAttrs to ViewFs and make XAttrs + ViewFileSystem internal dir behavior consistent

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.5.0, 3.0.0-alpha1
• Fix Version/s: 2.6.0
• Component/s: fs, test
• Target Version/s: 2.6.0
• Assignee: Stephen Chu
• Reporter: Stephen Chu
• Created: 23/Jul/14 18:00
• Updated: 12/May/16 18:23
• Resolved: 23/Jul/14 21:43

Description

This is very similar to the work done in HADOOP-10845 (Add common tests for ACLs in combination with viewfs)

Here we make the XAttrs + ViewFileSystem internal dir behavior consistent. Right now, when users attempt XAttr operation on an internal dir, they will get an UnsupportedOperationException. Instead, we should throw the ReadOnlyMountTable AccessControlException or the NotInMountPointException.

We also add the XAttrs APIs to ViewFs. This involves adding them to ChRootedFs as well. Also, listXAttrs is missing from FileContext, so we should add that in.

Issue Links

• is required by: HDFS-6665 Add tests for XAttrs in combination with viewfs