[HDFS-14925] rename operation should check nest snapshot

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.3.0, 3.1.4, 3.2.2
• Component/s: namenode
• Assignee: Junwang Zhao
• Reporter: Junwang Zhao
• Created: 23/Oct/19 15:38
• Updated: 01/Nov/19 23:51
• Resolved: 01/Nov/19 23:46

Description

When we do rename operation, If the src directory or any of its descendant

is snapshottable and the dst directory or any of its ancestors is snapshottable,

we consider this as nested snapshot, which should be denied.

Issue Links

• links to: GitHub Pull Request #1670