[HDFS-13037] Support protected path configuration

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Component/s: namenode
• Assignee: Unassigned
• Reporter: chuanjie.duan
• Created: 19/Jan/18 03:54
• Updated: 19/Jan/18 16:13
• Resolved: 19/Jan/18 16:13

Description

After Hadoop2.7 root path("/") cannot be deleted for any situration. But like '/tmp','/user','/user/hive/warehouse' and so on, shouldn't be deleted mostly. So can we let user config  their own custom protected path. Just for any accident.

1. add configuration to hdfs-site.xml

2. add a command in dfsadmin for refreshing