Apache Druid

Apache Druid is a high-performance, real-time analytics database built to cut the time between data and insight. It excels at powering interactive UIs, running ad hoc operational queries, and serving high-concurrency workloads, and works well as an open-source alternative to a data warehouse for many use cases.

Ingestion handles both streaming and batch data through a point-and-click wizard, and queries run in DruidSQL or native form over HTTP, JDBC, or the built-in web console. That console doubles as a query workbench and a control plane, surfacing datasources, segments, ingestion tasks, and services, each backed by SQL system tables.

Druid runs from a local or Docker quickstart up to large clusters, with Kubernetes handled by the separate druid-operator project. It is developed under the Apache Software Foundation and released under the Apache 2.0 license.