Apache Polaris

Apache Polaris is an open-source, cloud-native catalog for Apache Iceberg designed to provide centralized metadata management and cross-engine interoperability. It implements the Iceberg REST Catalog specification, enabling multiple compute engines to share a single, consistent view of the data lakehouse. Polaris utilizes a centralized security model to enforce fine-grained access control and credential vending, ensuring that stored data remains secure and audited. It provides a unified management layer for Iceberg tables, simplifying the orchestration of complex data architectures while maintaining strict data governance across the entire analytical stack.