Supported engines and configuration types

The endpoint injection layer targets key configuration namespaces depending on the Virtual Warehouse engine or component type being deployed.

The following table shows the designated configuration scopes:
Configuration type Target engine or component
hadoop-core-site Database Catalogs, Hive, Impala Virtual Warehouse
hadoop-core-site-default-warehouse Default Database Catalog storage paths
trino-core-site Trino-specific Virtual Warehouse

Backward compatibility

If the thunderhead-environment service does not have the ExternalS3AccountsSvc service registered, the Cloudera Data Warehouse control plane logs a warning and continues standard operations with an empty account list. This typically occurs in lower Cloudera Data Warehouse versions. This architectural fallback mechanism prevents Virtual Warehouse creation or deployment failures.