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From "Alan Conway (JIRA)" <j...@apache.org>
Subject [jira] [Created] (QPID-4391) HA replicating subscriptions should not auto-delete queues
Date Tue, 23 Oct 2012 18:39:13 GMT
Alan Conway created QPID-4391:
---------------------------------

             Summary: HA replicating subscriptions should not auto-delete queues
                 Key: QPID-4391
                 URL: https://issues.apache.org/jira/browse/QPID-4391
             Project: Qpid
          Issue Type: Bug
            Reporter: Alan Conway


Description of problem:
When an auto-delete queue is replicated, the replicating subscription attempts to auto-delete
the queue after it has already been auto-deleted by the closing of the last non-HA consumer.
 An issue occurs if a new auto-delete queue with the same name is created shortly after the
deletion of the previously queue.  This can occur when a client subscribes to an auto-delete
queue and is temporarily disconnected from the broker.  It is possible for the cancelled HA
subscription to remove the newly created queue from the queue registry since the old and new
queues use the same names.  The HA replicating subscription should not execute the auto-delete
logic when the subscription is cancelled. 

Version-Release number of selected component (if applicable):
Qpid 0.18

How reproducible:
Frequently

Steps to Reproduce:
Race condition between a consumer auto-deleting and recreating a queue of the same name and
the HA replicating subscription auto-deleting the original queue.  If the HA replicating subscription
auto-deletes the original queue after the new queue is created, the new queue is removed from
the queue registry.
  
Actual results:
New queue is removed from the queue registry.

Expected results:
HA subscription does not attempt to auto-delete the queue and therefore the new queue is not
removed from the queue registry.

Additional info: https://bugzilla.redhat.com/show_bug.cgi?id=868364

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