[HDFS-15243] Add an option to prevent sub-directories of protected directories from deletion

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.1.1
• Fix Version/s: 3.3.1, 3.4.0
• Component/s: namenode
• Target Version/s: 3.3.1, 3.4.0
• Hadoop Flags: Reviewed
• Assignee: liuyanyu
• Reporter: liuyanyu
• Created: 26/Mar/20 09:39
• Updated: 11/Feb/24 11:09
• Resolved: 12/May/20 07:48

Description

HDFS-8983 add  fs.protected.directories to support protected directories on NameNode.  But as I test, when set a parent directory（eg /testA)  to protected directory, the child directory (eg /testA/testB) still can be deleted or renamed. When we protect a directory  mainly for protecting the data under this directory , So I think the child directory should not be delete or renamed if the parent directory is a protected directory.