[OAK-3588] SegmentNodeStore allow tweaking of lock fairness

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.0.24, 1.2.8, 1.3.10, 1.4
• Component/s: segmentmk
• Assignee: Alex Deparvu
• Reporter: Alex Deparvu
• Created: 05/Nov/15 09:58
• Updated: 04/Oct/16 08:51
• Resolved: 05/Nov/15 16:37

Description

This will expose the merge semaphores's fairness policy as the semaphore is currently configured as NonfairSync (default value).
Opening this option will be beneficial in collecting more stats around thread starvation and what the best policy is (fair vs non fair).

Issue Links

• is related to: OAK-4881 Make merge semaphore in SegmentNodeStore fair by default