[HADOOP-4268] Permission checking in fsck

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.17.2
• Fix Version/s: 0.21.0
• Hadoop Flags: Incompatible change, Reviewed
• Release Note: Fsck now checks permissions as directories are traversed. Any user can now use fsck, but information is provided only for directories the user has permission to read.
• Assignee: Tsz-wo Sze
• Reporter: Koji Noguchi
• Created: 24/Sep/08 22:43
• Updated: 02/May/13 02:29
• Resolved: 06/Jan/09 01:40

Description

Quoting from HADOOP-3222 ("fsck should require superuser privilege"),

I agree that it makes sense to make fsck do permission checking for the nodes that it traverses. If a user does a fsck on files/directories that he/she has access to (using permissions) then that invocation of fsck should be allowed. Since "/" is usually owned by super-user, only super-user should be allowed to run fsck on "/".

Issue Links

• depends upon: HADOOP-4896 hdfs fsck does not load hdfs configuration.
• is related to: HADOOP-3222 fsck should require superuser privilege