[AMQ-3460] Messages get stuck in the queue for some client sessions, "Dispatched Queue" grows but "Dequeues" doesn't move

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Cannot Reproduce
• Affects Version/s: 5.3.1
• Fix Version/s: AGING_TO_DIE
• Component/s: Broker

Environment

java version "1.5.0_15"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_15-b04)
Java HotSpot(TM) 64-Bit Server VM (build 1.5.0_15-b04, mixed mode)

• Assignee: Unassigned
• Reporter: Timur Evdokimov
• Created: 18/Aug/11 15:24
• Updated: 26/May/15 03:38
• Resolved: 06/Nov/13 16:30

Description

We experience the following problem.

There's 1 sender thread and 20 listener threads operating on the same queue.
No other queues are involved.

Message traffic goes generally OK via the queue, however Number of pending messages goes up one by one.

Looking at the active customers list, the following appears (see attached screenshot).
For all sessions but two, the messages are dispatched properly.
For these two affected sessions, the "Dispatched Queue" value gots stuck at certain moment and doesn't deliver anymore.

Eventually, more sessions got affected, and maybe after some hours, the stuck messages got delivered.

What we tried - adding useCache="false" into <policyEntry queue=">" ... > tag. Didn't have any effect.