[AMQ-4595] QueueBrowser hangs when browsing large queues

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 5.8.0
• Fix Version/s: 5.9.0
• Component/s: Broker
• Labels: QueueBrowser

Environment

All

• Assignee: Timothy A. Bish
• Reporter: Nicholas Rahn
• Created: 21/Jun/13 13:53
• Updated: 01/Sep/14 16:17
• Resolved: 15/Jul/13 14:22

Description

When trying to browse a queue with a QueueBrowser, the browsing will hang and never complete. This appears to happen only with "a lot" of message in the queue. 1000 messages works correctly, but 10000 hangs.

I have attached a unit test that exhibits the problem. Change the "messageToSend" variable in the test method to see the difference between small queue size and large queue size.

I've attached the unit test code as well as the output from one of the runs with 10000 messages.

Issue Links

• relates to: AMQ-5340 QueueBrowser with expired messages hangs until woken by expired messages background job
• relates to: AMQ-4487 java.lang.OutOfMemoryError: Java heap space