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From Petter Nordlander <>
Subject Ghost Consumers on queue with exclusive consumer
Date Thu, 13 Oct 2016 09:34:40 GMT
A solution uses several queues where consumer of the queues are using the exclusive consumer
pattern to make sure a single node gets all messages.

After upgrade to 5.13.3 from 5.9.1 some queues are getting ”ghost consumers”. I.e. consumers
with *no connection* that cannot be removed. (attached JMX screenshot)

It does not go away by restarting the consuming applications, the broker or by removing the
The problem is with exclusive consumer – this ”ghost” can get hold of the ”exclusiveness”
and no messages will flow.

Have anyone seen such a thing? What can be the cause. It has appeared on multiple queues,
not just a single one.

Clients are JMS/OpenWire clients with client lib 5.13.3 and 5.9.1.

Hälsningar / Best Regards
Petter Nordlander

Fourmation AB<>

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