Hi Team, I have created a digital twin and enabled eventhub within the digital twin endpoint, created Azure Data explorer and mapped the event hub and azure data explorer within the digital twin data history. After mapping this graph is enabled in the digital twin. But seeing SWW error, not sure what is the issue (refer below image).

Hi @Rakesh Turpu Greetings! I have followed the steps provided in the article Create a data history connection for Azure Digital Twins and I could get the data appear in the Dat history explorer graph without any issues. Please refer the below image where I get the history of a property on a Digital Twin. I appreciate it if you can follow this tutorial and see if you can get the history connection to work. Since you have confirmed that the data is being flown into your ADX database, I believe this might be an permission issue between ADX and data history connection. The Set up data history connection section mentions that the system managed identity needs to be enabled for Digital Twins for the connection to work. I have further provided the following set of permissions during the creation. Even though the article mentions these permissions can be removed, I appreciate it if you can review these permissions and let me know if enabling this helped with the rendering. Another note that, even though the Azure Digital Twins data history mentioned about API versioning, the tutorial I have followed did not explicitly refer to any API. Hope this helps. Please let us know if you still run into issues or need further assistance. Resolution The issue was identified to be with the ADX cluster name. The ADX cluster name created has dashes in it which prevented it from fetching the URL into the connection. Product team has fixed the issue through PR .

Created a digital twin and also configure the data history connection, but unable to see the graph in data history explorer.

Accepted answer

LeelaRajeshSayana-MSFT 13,966 Reputation points

2023-06-23T01:19:08.68+00:00

Hi @Rakesh Turpu Greetings! I have followed the steps provided in the article Create a data history connection for Azure Digital Twins and I could get the data appear in the Dat history explorer graph without any issues. Please refer the below image where I get the history of a property on a Digital Twin. I appreciate it if you can follow this tutorial and see if you can get the history connection to work.

Since you have confirmed that the data is being flown into your ADX database, I believe this might be an permission issue between ADX and data history connection. The Set up data history connection section mentions that the system managed identity needs to be enabled for Digital Twins for the connection to work. I have further provided the following set of permissions during the creation.

Even though the article mentions these permissions can be removed, I appreciate it if you can review these permissions and let me know if enabling this helped with the rendering.

Another note that, even though the Azure Digital Twins data history mentioned about API versioning, the tutorial I have followed did not explicitly refer to any API.

Hope this helps. Please let us know if you still run into issues or need further assistance.

Resolution

The issue was identified to be with the ADX cluster name. The ADX cluster name created has dashes in it which prevented it from fetching the URL into the connection. Product team has fixed the issue through PR.
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1 person found this answer helpful.
Rakesh Turpu 60 Reputation points

2023-06-23T12:05:03.1+00:00

Hi @LeelaRajeshSayana-MSFT ,Thank you! I have again tried with the steps mentioned in this article Create a data history connection for Azure Digital Twins, but still seeing the same issue. Also, digital twin Identity is System assigned. In the below screenshot, we are seeing the Managed Identity and Azure Data Explorer Cluster as N/A, not sure why it is showing like that. But I have added the details properly while adding the connection.

Also in the 3d scenes, I'm adding the Data History widget and while adding it connection string is not get populated. Not sure why or this is expected?

LeelaRajeshSayana-MSFT 13,966 Reputation points

2023-06-23T15:11:58.87+00:00

Hi @Rakesh Turpu thank you for testing this out and sharing the feedback.

For a deeper investigation and immediate assistance on this issue, please file a support request @ https://aka.ms/azsupt? If you do not have access to a support plan, could you please send an email to azcommunity@microsoft.com with the below details, so that we can work closely on this matter.

Thread URL: Link to this thread.
Azure Subscription ID:
Email Subject : Attn Leela

LeelaRajeshSayana-MSFT 13,966 Reputation points

2023-06-28T20:02:43.6+00:00

Hi @Rakesh Turpu I am follow up to see if you got a chance to open a support case. If you did, kindly share the support case with me for internal tracking. Thanks

Rakesh Turpu 60 Reputation points

2023-06-30T04:39:59.5066667+00:00

Hi @LeelaRajeshSayana-MSFT Thank you for the follow up, I have raised a ticket, not sure if can ping the number here. I can mail or DM you if needed.

LeelaRajeshSayana-MSFT 13,966 Reputation points

2023-06-30T13:43:50.0266667+00:00

Hi @Rakesh Turpu Thank you for getting back to us. It is okay to share the ticket number here. I can moderate the comment after the information is shared.

Rakesh Turpu 60 Reputation points

2023-06-30T16:10:42.1066667+00:00

Hi , Here is the ticket number "TrackingID#230XXXXXX0000XXX", Even I thought of updating comment after the response.

LeelaRajeshSayana-MSFT 13,966 Reputation points

2023-06-30T16:19:48.2166667+00:00

Hi @Rakesh Turpu thank you for your response. I will track the support ticket internally.

Rakesh Turpu 60 Reputation points

2023-07-19T08:59:16.4166667+00:00

Hi @LeelaRajeshSayana-MSFT : Microsoft Team has found the issue, Since I was creating the ADX cluster name with dashes. It is unable to find the URL. Team has fixed the issue and raised a PR(https://github.com/microsoft/iot-cardboard-js/pull/960).

LeelaRajeshSayana-MSFT 13,966 Reputation points

2023-07-20T15:42:44.21+00:00

Hi @Rakesh Turpu I am glad the root cause has been identified and the issue is resolved. I have updated my response above to include this fix. I appreciate if you mark the response as Accept Answer. This will help other community members facing the issue identify the solution. If you wish, you may consider rating for the engagement you received on the thread. Your feedback is very important to us. Looking forward to your reply. Much appreciate your feedback!

Sander van de Velde | MVP 31,211 Reputation points MVP

2023-07-20T22:10:44.8533333+00:00

We had a similar issue. It is fixed now.
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Created a digital twin and also configure the data history connection, but unable to see the graph in data history explorer.

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