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Time Series Insights Error - Don't receive the messages from event hub

Anh Dinh 40 Reputation points
2023-08-13T15:30:41.5833333+00:00

Hello, I am following this tutorial:

https://zcusa.951200.xyz/en-us/azure/digital-twins/how-to-integrate-time-series-insights#set-the-twins-event-hub-connection-string

I did all the step in the tutorial.

I can see the data sent successfully from Digital Twin to ProcessDTUpdatetoTSI.cs function, Event Hub namespace ( both the twin hub and time series hub). ( I attach images for each resource below)

Device to Digital Twin

Screenshot (19)

Screenshot (20)

But I don't see any received message on the Time series environment.:Screenshot (21)

Also in Time Series Insights Explorer, I don't see the expected twin device id on the left but only null:

Screenshot (22)

Do you think I miss any step? Or Do I need to change everything on Function app to deal with my data ( which include 4 feature: windDirection, windSpeed, Current, Power) instead of only temperature ?

For more information, I did this tutorial to send data from my device to Azure DT(https://zcusa.951200.xyz/en-us/azure/digital-twins/how-to-ingest-iot-hub-data)

Azure Digital Twins
Azure Digital Twins
An Azure platform that is used to create digital representations of real-world things, places, business processes, and people.
231 questions
Azure Time Series Insights
Azure Time Series Insights
An Azure internet of things (IoT) analytics platform to monitor, analyze, and visualize industrial IoT analytics data at scale.
78 questions

1 answer

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  1. Sander van de Velde | MVP 33,146 Reputation points MVP
    2023-08-13T20:36:36.11+00:00

    Hello @Anh Dinh,

    Do you only want to use Time Series Insights for storing Azure Digital Twins history data?

    Are you aware Azure Time Series is being deprecated in 2025?

    The Time Series Insights (TSI) service will no longer be supported after March 2025. Consider migrating existing TSI environments to alternative solutions as soon as possible.

    The Time Series database functionality offered by TSI is replaced by Azure Data Explorer (plus many more features). Be aware the visual interface is offered with this SDK. But you can also check out the Azure Data Explorer dashboard or the Grafana integration.

    Next, Azure Digital Twins now offers out-of-the-box history data export toward Azure Data Explorer in a more elaborate way:

    Diagram showing the flow of telemetry data into Azure Digital Twins, through an event hub, to Azure Data Explorer.

    Just follow the instructions of the wizard and both EventHub and table construction are taken care of.

    If the response helped, do "Accept Answer". If it doesn't work, please let us know the progress. All community members with similar issues will benefit by doing so. Your contribution is highly appreciated.

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