Major Description
Attached is a program that creates a durable topic subscription, disconnects, publishes a message, and then re-subscribes.
When running the program, it completes receives the message sent while the subscriber was disconnected. No surprise there. When running the program a second time, the session.createDurableSubscriber call stalls for a while. Eventually it times out with this message:
Exception in thread "main" javax.jms.JMSException: Error registering consumer: org.apache.qpid.AMQException: timed out waiting for sync: complete = 4, point = 9 [error code 541: internal error]
On the server side, this is what I get during a failing run:
2014-01-07 12:51:06,805 INFO [IoReceiver - /127.0.0.1:51065] (connection.open) - [con:124(/127.0.0.1:51065)] CON-1001 : Open
2014-01-07 12:51:06,809 INFO [IoReceiver - /127.0.0.1:51065] (connection.open) - [con:124(/127.0.0.1:51065)] CON-1001 : Open : Protocol Version : 0-10
2014-01-07 12:51:07,266 INFO [IoReceiver - /127.0.0.1:51065] (connection.open) - [con:124(guest@/127.0.0.1:51065/default)] CON-1001 : Open : Client ID : subscriber : Protocol Version : 0-10 : Client Version : 0.24
2014-01-07 12:51:07,305 INFO [IoReceiver - /127.0.0.1:51065] (channel.create) - [con:124(subscriber@/127.0.0.1:51065/default)/ch:0] CHN-1001 : Create
2014-01-07 12:52:07,358 INFO [IoReceiver - /127.0.0.1:51065] (channel.close_forced) - [con:124(subscriber@/127.0.0.1:51065/default)/ch:0] [con:124(subscriber@/127.0.0.1:51065/default)/ch:0] CHN-1003 : Close : 405 - Cannot declare queue('subscriber:DurableTestSession'), as exclusive queue with same name declared on another session
2014-01-07 12:52:07,698 INFO [IoReceiver - /127.0.0.1:51065] (connection.close) - [Broker] [con:124(subscriber@/127.0.0.1:51065/default)] CON-1002 : Close
If I go into the web manager and delete the exchanges, queues, and sessions, I can run everything again successfully. I can also get a successful rerun if I bounce the server - which I’ve seen the unit tests also demonstrate. If something happens to the client and it needs to reconnect in a short period of time, it will fail to subscribe until Qpid releases the session.
Based on this topic name, why would it be exclusive in the first place?
test-topic / test-durable; {create: always, assert: never, node: { type: topic, durable: True, x-declare: { auto-delete: True, exclusive: False}}}