[OAK-2768] Fair mode for backgroundOperationLock

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.3.4, 1.4
• Component/s: core, mongomk
• Labels: concurrency
• Assignee: Marcel Reutegger
• Reporter: Marcel Reutegger
• Created: 14/Apr/15 13:42
• Updated: 02/Mar/16 12:06
• Resolved: 22/Jul/15 11:52

Description

The backgroundOperationLock in DocumentNodeStore uses the default non-fair acquisition order. According to JavaDoc of ReentrantReadWriteLock it is possible that a background operation task gets delayed for a long time when the system is under load. We should probably consider using the fair mode for the backgroundOperationLock to make sure background operation tasks do not get delayed excessively.

Sub-Tasks

• Configurable mode for backgroundOperationLock: Closed