Thanks for the response. I haven't yet checked the logs, but I have found the cause of the problem.
When increasing the overall heap of the vm, the producer is allowed to publish all messages. I would have expected to get an OutOfMemoryException if the producer tries to write to the queue when the broker is unable to allocate memory. But perhaps it is a feature of PFC that it avoids such situation by checking available memory before writing to the queue, and hangs instead. That does make some sense I guess. I will check the logs as you suggested and see if I can spot anything in there. Best, Pontus -- View this message in context: http://activemq.2283324.n4.nabble.com/Deadlock-when-using-XA-and-PFC-tp4672276p4672373.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.
