[HDFS-5514] FSNamesystem's fsLock should allow custom implementation

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0-alpha, 3.0.0-alpha1
• Fix Version/s: 2.3.0
• Component/s: namenode
• Hadoop Flags: Reviewed
• Assignee: Daryn Sharp
• Reporter: Daryn Sharp
• Created: 14/Nov/13 17:09
• Updated: 12/May/16 18:12
• Resolved: 05/Dec/13 15:37

Description

Changing fsLock from a ReentrantReadWriteLock to an API compatible class that encapsulates the rwLock will allow for more sophisticated locking implementations such as fine grain locking.