Hello @sinhapiyush86 ,   thank you for raising the question about getting Unsupported JDBC protocol: 'null' exception in PySpark.   Please make sure you have initialised HWC in the session, otherwise you will get the below exception: java.lang.RuntimeException: java.lang.IllegalArgumentException: Unsupported JDBC protocol: 'null'   You can initialise HWC by the below code segment [1]: from pyspark_llap import HiveWarehouseSession hive = HiveWarehouseSession.session(spark).build()   Please let us know if it resolved your issue.   Thank you: Ferenc [1] https://docs.cloudera.com/HDPDocuments/HDP3/HDP-3.1.5/integrating-hive/content/hive_hivewarehousesession_api_operations.html ... View more