[KYLIN-3417] Consider replacing ReentrantReadWriteLock with StampedLock

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Fix Version/s: Backlog
• Labels: newbie
• Assignee: Jiatao Tao
• Reporter: Ted Yu
• Created: 19/Jun/18 10:02
• Updated: 02/Jun/20 02:35

Description

ReentrantReadWriteLock's are only the right solution when there is long hold time due to expensive I/O.

It is expensive for readers.

We should see if the lighter StampedLock can be used instead.