Apache Druid

Apache Druid is a high-performance, distributed database engineered for real-time analytics on massive event-driven datasets. It enables sub-second query latency for complex slice-and-dice operations, making it ideal for data engineers and analysts managing clickstream, telemetry, or time-series data. By combining OLAP capabilities with streaming ingestion, Druid allows organizations to derive immediate insights from high-velocity data streams. Its unique architecture separates storage and compute, providing exceptional scalability and fault tolerance for mission-critical applications that require both historical analysis and real-time visibility into operational metrics.