[CAY-2446] Run Disjoint By Id queries outside of synchronized block

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.1.B1
• Component/s: Core Library
• Assignee: Nikita Timofeev
• Reporter: Nikita Timofeev
• Created: 27/Jul/18 14:17
• Updated: 30/Jul/18 07:52
• Resolved: 30/Jul/18 07:52

Description

While researching lock contention in read-only mode I found that queries that are run for DisjoinById prefetches inside context-wide lock on ObjectStore. This can lead in really huge lock contention between threads concurrently reading from same context.