IoT Scenario Failure After Recent Deployment – Data Not Flowing

Question

Post recent deployment, IoT scenarios are failing where device data is not flowing through the system as expected. The issue seems correlated with backend changes affecting data ingestion or processing.

Context:

• Issue started after latest rollout/build
• No change observed on device-side behavior

Areas to Investigate:

• Service bus / queue processing
• API failures in ingestion layer
• Configuration or certificate issuesPost recent deployment, IoT scenarios are failing where device data is not flowing through the system as expected. The issue seems correlated with backend changes affecting data ingestion or processing. Context:
  • Issue started after latest rollout/build
  • No change observed on device-side behavior
  Areas to Investigate:
  • Service bus / queue processing
  • API failures in ingestion layer
  • Configuration or certificate issues

Answer 1

Hello @Sai Manasa Ivaturi ,

welcome to this Azure community forum.

From what I understand, you see a degradation in a data messaging stream in the Azure IoT Hub Stream.

Please check the Azure portal health is there is a service degradation in your area.

Als check if the daily limit is already reached in your IoT Hub.

Next, monitor the stream via tooling like IoT Explorer, the IoT Hub extension in Visual Studio code, the Data Explorer message visualization in EventHub when messages are routed to this service, or Azure Data Explorer as monitoring tool.

Double-check if consumer group names (especially $default) are used by multiple subscribers. Each subscriber should use its own specific consumer group so no message loss is experienced that way.

If you still experience a degraded service, consider creating an Azure support ticket so the support team can assist you.

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