I can't open my fabric data agent in the browser this morning it spins for a few minutes and gives me this error. This happen on agents, some in different workspaces.
Error loading data agent configuration.
Request failed with 500(Internal Server Error): {"error":{"code":"UnknownError","pbi.error":{"code":"UnknownError","parameters":{},"details":[]}}}
Sometimes it will connect to agent in notebook using sdk, but sometimes give me this error:
fetch access token error, f08ae471-affd-474b-89a5-4d007272d077 status code: 504, content: b'{"result":"DependencyError","errorId":"GatewayTimeout","errorMessage":"Request timed out while making proxy call. Request to endpoint : TridentManagementService failed with Exception : The delegate executed asynchronously through TimeoutPolicy did not complete within the timeout.. TraceId : 70e5ac62-e7fa-421c-b494-b204dd0d9507 | client-request-id : f08ae471-affd-474b-89a5-4d007272d077. Error Component : TridentManagementService"}'
failed to get ml token
Traceback (most recent call last):
File "/home/trusted-service-user/cluster-env/trident_env/lib/python3.11/site-packages/synapse/ml/fabric/token_utils.py", line 175, in _get_access_token_direct_call
return TokenServiceClient().get_access_token(resource)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/trusted-service-user/cluster-env/trident_env/lib/python3.11/site-packages/synapse/ml/fabric/token_utils.py", line 495, in get_access_token
raise Exception('Fetch access token error')
Exception: Fetch access token error
FabricHTTPException: 401 Unauthorized for url: https://api.powerbi.com/powerbi/globalservice/v201606/clusterdetails
Headers: {'Cache-Control': 'no-store, must-revalidate, no-cache', 'Pragma': 'no-cache', 'Transfer-Encoding': 'chunked', 'Content-Type': 'application/octet-stream', 'Strict-Transport-Security': 'max-age=31536000; includeSubDomains', 'X-Frame-Options': 'deny', 'X-Content-Type-Options': 'nosniff', 'RequestId': '20423195-5a38-4203-b983-10c2a8491339', 'Access-Control-Expose-Headers': 'RequestId', 'Date': 'Tue, 10 Feb 2026 12:18:20 GMT'}
When it does connect, it will fail on sdk evaluate_data_agent, giving me this error:
FabricHTTPException: 500 Internal Server Error for url: https://3f2a8ec160b146b8a6e77b77b784dcdf.pbidedicated.windows.net/webapi/capacities/3f2a8ec1-60b1-46...
Error: {"code":"NoAvailableCoreService","subCode":0,"message":"An internal error occurred.","timeStamp":"2026-02-10T12:09:21.3118432Z","httpStatusCode":500,"hresult":-2147467259,"details":[{"code":"RootActivityId","message":"427c7e63-bb62-426e-82a0-08cfa5d26759"},{"code":"Param1","message":"There are no available core services for f64eastus2ncharleston,ML,"}]}
Headers: {'Content-Length': '355', 'Content-Type': 'application/json; charset=utf-8', 'Strict-Transport-Security': 'max-age=31536000; includeSubDomains', 'x-ms-root-activity-id': '427c7e63-bb62-426e-82a0-08cfa5d26759', 'x-ms-current-utc-date': '2/10/2026 12:09:21 PM', 'Date': 'Tue, 10 Feb 2026 12:09:20 GMT'}
I also can not create a new data agent. When I am able to connect to data agent in notebook via sdk, I am able to run
evaluate_few_shots successfully.
