Databricks-connect OpenSSL Handshake failed on WSL2

vpacik — Mon, 15 Apr 2024 09:27:04 GMT

When trying to setup databricks-connect on WSL2 using 13.3 cluster, I receive the following error regarding OpenSSL CERTIFICATE_ERIFY_FAILED.

The authentication is done via SPARK_REMOTE env. variable.

E0415 11:24:26.646129568 142172 ssl_transport_security.cc:1519] Handshake failed with fatal error SSL_ERROR_SSL: error:1000007d:SSL routines:OPENSSL_internal:CERTIFICATE_VERIFY_FAILED. Traceback (most recent call last): File "/home/vpacik/Codes/spark-test.py", line 5, in <module> spark.range(10).show() File "/home/vpacik/Codes/.venv/lib/python3.10/site-packages/pyspark/sql/connect/dataframe.py", line 996, in show print(self._show_string(n, truncate, vertical)) File "/home/vpacik/Codes/.venv/lib/python3.10/site-packages/pyspark/sql/connect/dataframe.py", line 753, in _show_string ).toPandas() File "/home/vpacik/Codes/.venv/lib/python3.10/site-packages/pyspark/sql/connect/dataframe.py", line 1655, in toPandas return self._session.client.to_pandas(query) File "/home/vpacik/Codes/.venv/lib/python3.10/site-packages/pyspark/sql/connect/client/core.py", line 798, in to_pandas table, schema, metrics, observed_metrics, _ = self._execute_and_fetch(req) File "/home/vpacik/Codes/.venv/lib/python3.10/site-packages/pyspark/sql/connect/client/core.py", line 1172, in _execute_and_fetch for response in self._execute_and_fetch_as_iterator(req): File "/home/vpacik/Codes/.venv/lib/python3.10/site-packages/pyspark/sql/connect/client/core.py", line 1153, in _execute_and_fetch_as_iterator self._handle_error(error) File "/home/vpacik/Codes/.venv/lib/python3.10/site-packages/pyspark/sql/connect/client/core.py", line 1308, in _handle_error self._handle_rpc_error(error) File "/home/vpacik/Codes/.venv/lib/python3.10/site-packages/pyspark/sql/connect/client/core.py", line 1348, in _handle_rpc_error raise SparkConnectGrpcException(str(rpc_error)) from None pyspark.errors.exceptions.connect.SparkConnectGrpcException: <_MultiThreadedRendezvous of RPC that terminated with: status = StatusCode.UNAVAILABLE details = "failed to connect to all addresses; last error: UNKNOWN: ipv4:20.42.4.211:443: Ssl handshake failed: SSL_ERROR_SSL: error:1000007d:SSL routines:OPENSSL_internal:CERTIFICATE_VERIFY_FAILED" debug_error_string = "UNKNOWN:Error received from peer {created_time:"2024-04-15T11:24:26.646729568+02:00", grpc_status:14, grpc_message:"failed to connect to all addresses; last error: UNKNOWN: ipv4:20.42.4.211:443: Ssl handshake failed: SSL_ERROR_SSL: error:1000007d:SSL routines:OPENSSL_internal:CERTIFICATE_VERIFY_FAILED"}"

The script used:

from databricks.connect import DatabricksSession spark = DatabricksSession.builder.getOrCreate() spark.range(10).show()

Re: Databricks-connect OpenSSL Handshake failed on WSL2

ez — Wed, 15 Oct 2025 13:07:51 GMT

@vpacik Was it solved? I have the same issue

topic Databricks-connect OpenSSL Handshake failed on WSL2 in Data Engineering

Databricks-connect OpenSSL Handshake failed on WSL2

Re: Databricks-connect OpenSSL Handshake failed on WSL2