[HDFS-4112] A few improvements on INodeDirectory

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.0.3-alpha
• Component/s: namenode
• Hadoop Flags: Reviewed
• Assignee: Tsz-wo Sze
• Reporter: Tsz-wo Sze
• Created: 25/Oct/12 23:57
• Updated: 15/Feb/13 13:12
• Resolved: 26/Oct/12 18:15

Description

Below are a few improvements on INodeDirectory

• Add a utility method for casting from INode;
• avoid creating new empty list and INode arrays;
• renames getChildren() and getChildrenRaw(), rewrite the javadoc.

Also,

• clean up isDirEmpty(..) and isEmpty() in FSDirectory

Issue Links

• relates to: HDFS-2802 Support for RW/RO snapshots in HDFS