Preview features in Cloudera Data Warehouse on premises 1.5.5 SP3

Preview features for Cloudera Data Warehouse service on premises 1.5.5 Service Pack 3 introduce technical previews under development and intended for evaluation in non-production environments.

Hierarchical metastore event processing (Technical Preview)

Cloudera Data Warehouse now supports a multi-layered, hierarchical approach to metastore event processing to improve synchronization speed and handle event dependencies more efficiently. By enabling this feature, you can isolate events based on their dependencies and process them independently through a system of database and table event executors. This method reduces synchronization time for HMS events by allowing parallel processing while maintaining linearizability for specific tables.

This update also introduces synchronization tracking metrics, such as event lag and dispatch time, and a graceful pausing mechanism to ensure metadata consistency. For more information, see Hierarchical metastore event processing (Preview)

SQL AI Assistant API Access (Technical Preview)

Previously, the SQL AI Assistant features in Data Explorer were accessible only through the Data Explorer user interface. You can now access the SQL AI Assistant through a RESTful API. This enhancement enables programmatic SQL operations, including sending natural language requests directly to the API endpoints.

For more information, see Cloudera Data Explorer (Hue) SQL AI Assistant API.