[HDFS-16816] RBF: auto-create user home dir for trash paths by router

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Component/s: rbf
• Labels: pull-request-available
• Target Version/s: 3.3.9
• Assignee: Unassigned
• Reporter: Xing Lin
• Created: 24/Oct/22 17:25
• Updated: 09/Jun/23 20:18

Description

In RBF, trash files are moved to trash root under user's home dir at the corresponding namespace/namenode where the files reside. This was added in HDFS-16024. When the user home dir is not created before-hand at a namenode, we run into permission denied exceptions when trying to create the parent dir for the trash file before moving the file into it. We propose to enhance Router, to auto-create a user home's dir at the namenode for trash paths, using router's identity (which is assumed to be a super-user).

Issue Links

• links to: GitHub Pull Request #5071