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https://issues.apache.org/jira/browse/MINIFICPP-1871?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ádám Markovics resolved MINIFICPP-1871.
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Resolution: Fixed
> ConsumeMQTT fails upon agent restart
> ------------------------------------
>
> Key: MINIFICPP-1871
> URL: https://issues.apache.org/jira/browse/MINIFICPP-1871
> Project: Apache NiFi MiNiFi C++
> Issue Type: Bug
> Reporter: Andre Araujo
> Assignee: Ádám Markovics
> Priority: Major
>
> I have a flow that is running a ConsumeMQTT processor, successfully connected
> to the MQTT broker and consuming data. When the agent is restarted the
> following error is shown on the minifi-app.log:
> {code:java}
> [2022-06-25 12:19:04.189]
> [org::apache::nifi::minifi::processors::AbstractMQTTProcessor] [error] Failed
> to subscribe to MQTT topic iot/# (-1)
> {code}
> The ConsumeMQTT processor never recovers from this error.
> After this, if I restart the agent, the ConsumerMQTT processor will manage to
> reconnect to the broker successfully and start consuming.
> If I restart the agent one more time, the cycle above repeats.
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