Reference information

Review guidelines and related information while migrating Impala workloads to Cloudera Data Warehouse Data Service on premises.

Guidelines for moving repeated BI workloads
Review the guidelines for moving Repeated BI workloads.
Configuration options available in Cloudera Data Warehouse by default
Certain customization that you embraced in a CDH environment need not be imported to Cloudera Data Warehouse, due to its containerized and compute-isolated architecture and available default configurations.
Supported authentication
In CDH, the list of supported authentication modes for Impala clients included Kerberos. However, Kerberos authentication is not supported for Impala clients in Cloudera Data Warehouse. To connect to Impala that is running in Cloudera Data Warehouse you can use your workload userID and password.
Setting up ODBC connection from a BI tool
Describes how to connect to Impala Virtual Warehouses using ODBC with your BI tool, with Tableau as an example.