Apache Pinot is an open-source distributed OLAP database designed for real-time analytics with sub-100ms query latency. It features multiple indexing strategies including the signature star-tree index, supports both batch and streaming data ingestion, and can scale to thousands of nodes handling hundreds of thousands of concurrent queries. StarTree Cloud provides a managed version with additional tools like Data Manager for ingestion and ThirdEye for anomaly detection. The platform addresses the evolution from traditional OLAP cubes to modern real-time analytics requirements, offering significant performance improvements through columnar storage and specialized indexes.
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