[HDFS-16144] Revert HDFS-15372 (Files in snapshots no longer see attribute provider permissions)

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.4.0, 3.3.2
• Fix Version/s: 3.4.0, 3.3.2
• Component/s: namenode
• Target Version/s: 3.4.0, 3.3.2
• Hadoop Flags: Reviewed
• Assignee: Stephen O'Donnell
• Reporter: Stephen O'Donnell
• Created: 26/Jul/21 10:29
• Updated: 27/Jan/24 02:40
• Resolved: 28/Jul/21 14:29

Description

In HDFS-15372, I noted a change in behaviour between Hadoop 2 and Hadoop 3. When a user accesses a file in a snapshot, if an attribute provider is configured it would see the original file path (ie no .snapshot folder) in Hadoop 2, but it would see the snapshot path in Hadoop 3.

HDFS-15372 changed this back, but I noted at the time it may make sense for the provider to see the actual snapshot path instead.

Recently we discovered HDFS-16132 where the HDFS-15372 does not work correctly. At this stage I believe it is better to revert HDFS-15372 as the fix to this issue is probably not trivial and allow providers to see the actual path the user accessed.

Issue Links

• is caused by: HDFS-15372 Files in snapshots no longer see attribute provider permissions
• relates to: HDFS-16132 SnapshotDiff report fails with invalid path assertion with external Attribute provider