[jira] [Created] (AMQ-8023) Network bridge race on MQTT virtual topic clean session and resubscribe

["Gary Tully (Jira)" <ji...@apache.org>]

Gary Tully created AMQ-8023:
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             Summary: Network bridge race on MQTT virtual topic clean session and resubscribe
                 Key: AMQ-8023
                 URL: https://issues.apache.org/jira/browse/AMQ-8023
             Project: ActiveMQ
          Issue Type: Bug
          Components: MQTT, Network of Brokers
    Affects Versions: 5.16.0
            Reporter: Gary Tully
            Assignee: Gary Tully
             Fix For: 5.17.0


With MQTT clients using virtual topic subscriptions and clean session. In a network of brokers when the remove destination operations are bridged, it is possible for the re-subscribe to beat the removeDestination advisory and cause the remove to fail with an error, causing the bridge to fail. The advisories are in order, but are executed out of order on the remote network bridge, in error.
{code:java}
WARN  | pool-16-thread-1 | Service   | ivemq.broker.TransportConnection  304 | 162 - org.apache.activemq.activemq-osgi | Async error occurred: javax.jms.JMSException: Destination still has an active subscription: queue://Consumer.340601550021719:AT_LEAST_ONCE.VirtualTopic.IMPORTANT.>
INFO  | Task-310 | DemandForwardingBridgeSupport    | rk.DemandForwardingBridgeSupport  908 | 162 - org.apache.activemq.activemq-osgi | Network connection between vm://AMQ1 and ssl:///x.x.x:x shutdown due to a local error: javax.jms.JMSException: Destination still has an active subscription: queue://Consumer.340601550021719:AT_LEAST_ONCE.VirtualTopic.IMPORTANT.>
{code}
 Two necessary config options:
# networkConnector destinationFilter="ActiveMQ.Advisory.Consumer.Queue.>,ActiveMQ.Advisory.Queue"
# &transport.subscriptionStrategy=mqtt-virtual-topic-subscriptions



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