Error Creating Dataset: Invalid Content-Type Key in Sample Code

Elaine Z. · 2025-10-20T08:59:00.185Z

Hi, I am trying to create a dataset with the sample code shown in the doc:https://arize.com/docs/ax/develop/datasets/how-to-datasets#create-a-dataset-with-code I have such error: E1020 08:42:34.714773476 20330 hpack_parser.cc:1240] Error parsing metadata: error=invalid value key=content-type value=text/html; charset=UTF-8 RuntimeError: Failed to create dataset: name=test_invention_dataset, type=1 for space_id=XXX What am I missing? 🤔

Error Creating Dataset: Invalid Content-Type Key in Sample Code | Arize AI Community

8 comments

· Sorted by Oldest

Elaine Z.
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RunLLM more details
Elaine Z.
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🔒[private user] here is more details: E1020 09:21:02.670706807 20330 hpack_parser.cc:1240] Error parsing metadata: error=invalid value key=content-type value=text/html; charset=UTF-8 RuntimeError: Failed to create dataset: name=test_invention_dataset, type=1 for space_id=U3BhY2U6MTc6VlYxTw== File /local_disk0/.ephemeral_nfs/envs/pythonEnv-2830652f-a328-463b-97e3-a7d82840f141/lib/python3.10/site-packages/arize/experimental/datasets/core/client.py:481, in ArizeDatasetsClient.create_dataset(self, space_id, dataset_name, dataset_type, data, convert_dict_to_json, max_chunk_size) 478 writer, metadata_reader = flight_client.do_put( 479 descriptor, tbl.schema, self.session.call_options 480 ) --> 481 with writer: 482 writer.write_table(tbl, max_chunksize=max_chunk_size) File /local_disk0/.ephemeral_nfs/envs/pythonEnv-2830652f-a328-463b-97e3-a7d82840f141/lib/python3.10/site-packages/arize/experimental/datasets/core/client.py:481, in ArizeDatasetsClient.create_dataset(self, space_id, dataset_name, dataset_type, data, convert_dict_to_json, max_chunk_size) 478 writer, metadata_reader = flight_client.do_put( 479 descriptor, tbl.schema, self.session.call_options 480 ) --> 481 with writer: 482 writer.write_table(tbl, max_chunksize=max_chunk_size) File /databricks/python/lib/python3.10/site-packages/pyarrow/ipc.pxi:519, in pyarrow.lib._CRecordBatchWriter.__exit__() File /databricks/python/lib/python3.10/site-packages/pyarrow/_flight.pyx:1031, in pyarrow._flight.MetadataRecordBatchWriter.close() File /databricks/python/lib/python3.10/site-packages/pyarrow/_flight.pyx:80, in pyarrow._flight.check_flight_status() File /databricks/python/lib/python3.10/site-packages/pyarrow/error.pxi:121, in pyarrow.lib.check_status() ArrowNotImplementedError: Flight returned unimplemented error, with message: Received http2 header with status: 404. gRPC client debug context: {"created":"@1760952062.670756509","description":"Received http2 :status header with non-200 OK status","file":"/opt/vcpkg/buildtrees/grpc/src/85a295989c-6cf7bf442d.clean/src/core/ext/filters/http/client/http_client_filter.cc","file_line":123,"grpc_message":"Received http2 header with status: 404","grpc_status":12,"value":"404"}. Client context: OK The above exception was the direct cause of the following exception: RuntimeError Traceback (most recent call last) File <command-5347401209140717>, line 1 ----> 1 dataset_id = client.create_dataset(space_id="U3BhY2U6MTc6VlYxTw==", dataset_name = "test_invention_dataset", dataset_type=GENERATIVE, data=inventions_dataset) 2 dataset_id File /local_disk0/.ephemeral_nfs/envs/pythonEnv-2830652f-a328-463b-97e3-a7d82840f141/lib/python3.10/site-packages/arize/experimental/datasets/core/client.py:491, in ArizeDatasetsClient.create_dataset(self, space_id, dataset_name, dataset_type, data, convert_dict_to_json, max_chunk_size) 489 return str(res.dataset_id) 490 except BaseException as exc: --> 491 raise RuntimeError( 492 f"Failed to create dataset: name={dataset_name}, type={dataset_type} for space_id={space_id}" 493 ) from exc 494 finally: 495 flight_client.close()
Dat
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Elaine Z. is this your first time running a datasets call?
Sanjana
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Hi Elaine Z.! Just ran the example and seemed to work for me. Can you double check that you've passed in the api key and space id properly? There's also good chance this was a connection issue. Let us know if the issue still persists
Elaine Z.
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Hi 🔒[private user], yes, it is my first time to use datasets call
Elaine Z.
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Hi 🔒[private user], I have used GQL APIs to create space etc, it worked. I double checked the space id and then used the same key to use "create a dataset call" or generate a new api key, both failed. 😭
Dat
External
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Databricks notebooks
Dat
External
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sometimes block networking calls

Elaine Z.
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·
RunLLM more details
Elaine Z.
·
·
🔒[private user] here is more details: E1020 09:21:02.670706807 20330 hpack_parser.cc:1240] Error parsing metadata: error=invalid value key=content-type value=text/html; charset=UTF-8 RuntimeError: Failed to create dataset: name=test_invention_dataset, type=1 for space_id=U3BhY2U6MTc6VlYxTw== File /local_disk0/.ephemeral_nfs/envs/pythonEnv-2830652f-a328-463b-97e3-a7d82840f141/lib/python3.10/site-packages/arize/experimental/datasets/core/client.py:481, in ArizeDatasetsClient.create_dataset(self, space_id, dataset_name, dataset_type, data, convert_dict_to_json, max_chunk_size) 478 writer, metadata_reader = flight_client.do_put( 479 descriptor, tbl.schema, self.session.call_options 480 ) --> 481 with writer: 482 writer.write_table(tbl, max_chunksize=max_chunk_size) File /local_disk0/.ephemeral_nfs/envs/pythonEnv-2830652f-a328-463b-97e3-a7d82840f141/lib/python3.10/site-packages/arize/experimental/datasets/core/client.py:481, in ArizeDatasetsClient.create_dataset(self, space_id, dataset_name, dataset_type, data, convert_dict_to_json, max_chunk_size) 478 writer, metadata_reader = flight_client.do_put( 479 descriptor, tbl.schema, self.session.call_options 480 ) --> 481 with writer: 482 writer.write_table(tbl, max_chunksize=max_chunk_size) File /databricks/python/lib/python3.10/site-packages/pyarrow/ipc.pxi:519, in pyarrow.lib._CRecordBatchWriter.__exit__() File /databricks/python/lib/python3.10/site-packages/pyarrow/_flight.pyx:1031, in pyarrow._flight.MetadataRecordBatchWriter.close() File /databricks/python/lib/python3.10/site-packages/pyarrow/_flight.pyx:80, in pyarrow._flight.check_flight_status() File /databricks/python/lib/python3.10/site-packages/pyarrow/error.pxi:121, in pyarrow.lib.check_status() ArrowNotImplementedError: Flight returned unimplemented error, with message: Received http2 header with status: 404. gRPC client debug context: {"created":"@1760952062.670756509","description":"Received http2 :status header with non-200 OK status","file":"/opt/vcpkg/buildtrees/grpc/src/85a295989c-6cf7bf442d.clean/src/core/ext/filters/http/client/http_client_filter.cc","file_line":123,"grpc_message":"Received http2 header with status: 404","grpc_status":12,"value":"404"}. Client context: OK The above exception was the direct cause of the following exception: RuntimeError Traceback (most recent call last) File <command-5347401209140717>, line 1 ----> 1 dataset_id = client.create_dataset(space_id="U3BhY2U6MTc6VlYxTw==", dataset_name = "test_invention_dataset", dataset_type=GENERATIVE, data=inventions_dataset) 2 dataset_id File /local_disk0/.ephemeral_nfs/envs/pythonEnv-2830652f-a328-463b-97e3-a7d82840f141/lib/python3.10/site-packages/arize/experimental/datasets/core/client.py:491, in ArizeDatasetsClient.create_dataset(self, space_id, dataset_name, dataset_type, data, convert_dict_to_json, max_chunk_size) 489 return str(res.dataset_id) 490 except BaseException as exc: --> 491 raise RuntimeError( 492 f"Failed to create dataset: name={dataset_name}, type={dataset_type} for space_id={space_id}" 493 ) from exc 494 finally: 495 flight_client.close()
Dat
External
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·
Elaine Z. is this your first time running a datasets call?
Sanjana
External
·
·
Hi Elaine Z.! Just ran the example and seemed to work for me. Can you double check that you've passed in the api key and space id properly? There's also good chance this was a connection issue. Let us know if the issue still persists
Elaine Z.
·
·
Hi 🔒[private user], yes, it is my first time to use datasets call
Elaine Z.
·
·
Hi 🔒[private user], I have used GQL APIs to create space etc, it worked. I double checked the space id and then used the same key to use "create a dataset call" or generate a new api key, both failed. 😭
Dat
External
·
·
Databricks notebooks
Dat
External
·
·
sometimes block networking calls