[QPID-2466] Replace WeakReference use with SoftReference for enhanced message caching

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.6
• Fix Version/s: 0.7
• Component/s: Broker-J
• Labels: cache gc qpid

Environment

JVM 1.6.0_18

• Assignee: Robbie Gemmell
• Reporter: Andrew Kennedy
• Created: 24/Mar/10 16:21
• Updated: 11/Feb/15 20:07
• Resolved: 07/Nov/10 15:46

Description

Replace use of WeakReference with SoftReference in the message handles in the broker to improve message cache performance when using a persistent store. Also tuning the eviction policy for soft references and evaluation of other GC settings.