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https://issues.apache.org/jira/browse/CAMEL-7673?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Willem Jiang resolved CAMEL-7673.
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Resolution: Fixed
Fix Version/s: 2.14.0
Introduced CamelMQTTSubscribeTopic for MQTTConsumer and CamelMQTTPublishTopic
MQTTProducer in camel master branch.
> subscribeTopicName leaks out as a property and used as a destination for mqtt
> producer, causes infinite delivery
> ----------------------------------------------------------------------------------------------------------------
>
> Key: CAMEL-7673
> URL: https://issues.apache.org/jira/browse/CAMEL-7673
> Project: Camel
> Issue Type: Bug
> Components: camel-mqtt
> Affects Versions: 2.12.2, 2.14.0
> Reporter: Tomohisa Igarashi
> Assignee: Willem Jiang
> Fix For: 2.14.0
>
>
> 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:
> {code}
> from("mqtt:input?subscribeTopicName=topicIn")
> .to("mqtt:output?publishTopicName=topicOut");
> {code}
> 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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