[AMQ-6069] Purging a Queue can lead to OOM error with prioritized messages

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 5.12.1
• Fix Version/s: 5.12.2, 5.13.1, 5.14.0
• Component/s: Broker
• Assignee: Christopher L. Shannon
• Reporter: Christopher L. Shannon
• Created: 02/Dec/15 13:24
• Updated: 04/Dec/15 13:36
• Resolved: 02/Dec/15 13:44

Description

The other day I noticed that when purging a large Queue I receive an out of memory error in the broker. I did some investigation and it looks like this only happens if using a Queue that is configured to use prioritized messages. After analyzing the heap dump it was discovered that after a purge, the dispatchPendingList in the Queue is still retaining all messages and not freeing them as it should.

Issue Links

• relates to: AMQ-6066 Performance issue in OrderedPendingList