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  1. Camel
  2. CAMEL-7673

subscribeTopicName leaks out as a property and used as a destination for mqtt producer, causes infinite delivery

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.12.2, 2.14.0
    • Fix Version/s: 2.14.0
    • Component/s: camel-mqtt
    • Labels:
      None
    • Estimated Complexity:
      Unknown

      Description

      MQTT consumer sets its subscribeTopicName as a exchange property, and it will be used by MQTT producer as a destination if it exists in the route.

      If you have a following route:

      from("mqtt:input?subscribeTopicName=topicIn")
              .to("mqtt:output?publishTopicName=topicOut");
      

      MQTT consumer put "topicIn" to "MQTTTopicPropertyName" exchange property, and MQTT producer uses this property to determine a destination topic to publish. Then MQTT producer ignores publishTopicName and send a message to "topicIn", so MQTT consumer consumes the message again, eventually it causes infinite delivery. We need to stop this property to be used as a destination for producer.

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              • Assignee:
                njiang Willem Jiang
                Reporter:
                igarashitm Tomohisa Igarashi
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                • Created:
                  Updated:
                  Resolved: