Troubleshooting: 401 Unauthorized when accessing Hive
Problem: Session returns a 401: Unauthorized error when you are accessing a Hive database.
Check that the Hive or Impala Virtual Warehouse is working.
Solution: Follow these steps to check that Hive or Impala data warehouse is running, and
      restart if needed.
 - In the control plane, go to Cloudera Data Warehouse.
 - Click Virtual Warehouses, and select the data warehouse for the connection.
 - Check the status of that data warehouse, and make sure that it is running or in a good state.
 
