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emqx / neuron

Open source industrial IoT connectivity server
https://neugates.io
GNU Lesser General Public License v3.0
943 stars 207 forks source link

The MQTT write operation on South Device is invalid. #2115

Closed leo-leonardo closed 2 weeks ago

leo-leonardo commented 2 weeks ago

The MQTT write operation on South Device is invalid.

When I try to overwrite value on my tag, I send the MQTT message to the neuron write topic. But, the message seems not received by neuron, the value is not write to the tag. image

The topic name is checked. image

And the group and tag are also checked. image

The subscription data is captured correctly. image

Did I miss any configuration? I have controlled successfully in the apt installed version, but this trouble happened in the compiled version.

eeff commented 2 weeks ago

@leo-leonardo make sure the broker which the mqtt plugin connects to is exactly the broker you publish the write requests. If that's the case and you are still not able to write the tag, please check the log of the mqtt plugin to find any clue of problem.

leo-leonardo commented 2 weeks ago

@leo-leonardo make sure the broker which the mqtt plugin connects to is exactly the broker you publish the write requests. If that's the case and you are still not able to write the tag, please check the log of the mqtt plugin to find any clue of problem.

Thank you! I check the log and find that Neuron can not decode the MQTT message for the ' I use. Now, mosquitto_pub -t /topic -m '{"key":"value"}' is success.