[HADOOP-10220] Add ACL indicator bit to FsPermission.

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: HDFS ACLs (HDFS-4685)
• Fix Version/s: HDFS ACLs (HDFS-4685)
• Component/s: fs
• Target Version/s: HDFS ACLs (HDFS-4685)
• Hadoop Flags: Reviewed
• Assignee: Chris Nauroth
• Reporter: Chris Nauroth
• Created: 10/Jan/14 17:22
• Updated: 14/Nov/14 17:55
• Resolved: 11/Jan/14 00:38

Description

This patch will take a previously unused bit in the 16-bit FsPermission and use it to indicate the presence of an ACL on the file or directory. The CLI will use this to display an indicator in the permission string if an ACL is present. The NameNode will use it in ACL modification APIs, permission checks, and display of an indicator in the directory browser web UI.

Issue Links

• is related to: HADOOP-10354 TestWebHDFS fails after merge of HDFS-4685 to trunk
• is related to: HDFS-5621 NameNode: add indicator in web UI file system browser if a file has an ACL.
• is related to: HDFS-7384 'getfacl' command and 'getAclStatus' output should be in sync
• is required by: HDFS-5758 NameNode: complete implementation of inode modifications for ACLs.