No MediaTypeFormatter is available to read an object of type 'ClusterInfo' from content with media type 'text/html'.

admin-eGu 16

Hi,

in azure data factory I wanted to test the connection of our new Databricks Workspace URL and ClusterID. I parameterized the linked service (LS) to global parameters databricksURL and databricksClusterID.

When I want to test the connection it is giving me following error: No MediaTypeFormatter is available to read an object of type 'ClusterInfo' from content with media type 'text/html'. . With the old databricks url and cluster ID it is working.
I created a token and everything. What is the error here?

ShaikMaheer-MSFT 38,401 Reputation points Microsoft Employee

2022-10-20T15:44:19.233+00:00

Hi @admin-eGu , Just checking is below response helpful? If yes, kindly consider hitting Accept Answer button. If not, could you please share your linked service configuration details along with values which you are using parameters. It seems your workspace URL or some information in linked service configuration is incorrect and that causing this issue.
Kunal Khadse 5 Reputation points Microsoft Employee

2023-12-29T13:23:32.3666667+00:00

Please check if you have private endpoints for databricks?

It mights be the case where Databricks workspace has enabled private endpoint. However, the ADF is from public access which doesn’t have the permission to connect to Databricks workspace.

If yes then check if you have created managed vnet if Not then follow below steps:

Deploy a new private endpoint to connect ADF IR and Azure Databricks workspace. I discussed it with ADF team and this action needs be finished on ADF side.

Below are steps and the doc as reference.

Step 1: Create new IR on ADF ->Azure, Self-Hosted->Azure

Step2: Enable managed virtual network in integration runtime.

Step3: Create new Managed private endpoint and choose Azure Databricks services.

Step3: Open networking on Azure Databricks portal, and approve the new private endpoint created by ADF.
Ács Dániel 25 Reputation points

2024-05-06T13:21:47.4+00:00

I had the same issue and after setting up Managed Private Endpoint my issue is solved.

1 answer

Michael Taylor 51,346 Reputation points

2022-10-18T15:10:15.213+00:00

I don't know how it was working before. The error itself indicates that the response (I assume) was HTML. There was no formatter available that could convert that HTML to the type ClusterInfo and therefore the call failed. Normally data is sent/received in JSON format. This could be just a simple matter of setting the correct request headers, if the error is coming from the server. Or, if it is coming from the response then perhaps you're getting an error message in HTML instead of the expected JSON data.
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Sukhdev Singh (DATA-MOVEMENT) 2 Reputation points Microsoft Employee

2024-03-20T01:50:47.2366667+00:00

hey Team was this issue fixed
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No MediaTypeFormatter is available to read an object of type 'ClusterInfo' from content with media type 'text/html'.

1 answer