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Posted to issues@streampipes.apache.org by "feribudi2 (via GitHub)" <gi...@apache.org> on 2026/01/19 21:45:20 UTC

[I] MQTT Adapter Error

feribudi2 opened a new issue, #4116:
URL: https://github.com/apache/streampipes/issues/4116

   ### Apache StreamPipes version
   
   0.98.0
   
   ### Affected StreamPipes components
   
   UI
   
   ### What happened?
   
   I'm trying to use MQTT. The topic I entered is a JSON single object, but when I configure the fields, no objects are displayed. Please guide me. Thank you.
   
   <img width="959" height="425" alt="Image" src="https://github.com/user-attachments/assets/192c7375-cd25-4398-a0a0-4c0a7a6424b8" />
   
   ### How to reproduce?
   
   _No response_
   
   ### Expected behavior
   
   I expect that when I enter the configured filed page it displays MQTT data
   
   ### Additional technical information
   
   I use docker compose to create Apache strempipes
   
   ### Are you willing to submit a PR?
   
   None


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Re: [I] MQTT Adapter Error

Posted by "tenthe (via GitHub)" <gi...@apache.org>.
tenthe commented on issue #4116:
URL: https://github.com/apache/streampipes/issues/4116#issuecomment-3771975289

   Hi @feribudi2,
   
   thanks for opening this issue.
   
   This does indeed look like unexpected behavior. Could you share what the event published on the MQTT broker looks like? A sample payload would be very helpful.
   
   The adapter subscribes to the configured topic and, once it consumes an event, it infers the event schema from the received message. Seeing an example would allow us to better understand where things might be going wrong.
   
   Additionally, could you confirm whether other adapters are working as expected (for example, the machine data simulator, or the MQTT adpater on another topic)? This would help verify that the overall system setup is functioning correctly.
   


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Re: [I] MQTT Adapter Error

Posted by "tenthe (via GitHub)" <gi...@apache.org>.
tenthe closed issue #4116: MQTT Adapter Error
URL: https://github.com/apache/streampipes/issues/4116


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Re: [I] MQTT Adapter Error

Posted by "tenthe (via GitHub)" <gi...@apache.org>.
tenthe commented on issue #4116:
URL: https://github.com/apache/streampipes/issues/4116#issuecomment-4136195576

   Hi @feribudi2,
   
   I'll close this issue for now. If it's still relevant or you need further help, feel free to reopen it anytime.


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Re: [I] MQTT Adapter Error

Posted by "alisha-1000 (via GitHub)" <gi...@apache.org>.
alisha-1000 commented on issue #4116:
URL: https://github.com/apache/streampipes/issues/4116#issuecomment-3841447334

   Hi @feribudi2,
   
   To help narrow this down, could you please share a sample MQTT payload that you’re publishing to the topic (e.g., a single JSON message)?
   
   Also, does the adapter receive any event at all (e.g., logs showing messages consumed), or does the schema inference step remain empty even after data is published?
   
   If possible, please also confirm:
   
   MQTT broker type (e.g., Mosquitto)
   
   QoS level used
   
   Whether the payload is a JSON object or JSON array
   
   With this information, it should be easier to reproduce and investigate the issue.


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