Tutorial: Querying data Query SQL from the web console More Druid SQL examples Query over time General group by Query SQL over HTTP Further reading Tutorial: Querying data...

Design Druid architecture Druid services Druid servers External dependencies Deep storage Metadata storage ZooKeeper Storage design Datasources and segments Indexing and ha...

Native queries Available queries Aggregation queries Metadata queries Other queries Which query type should I use? Query cancellation Query errors Authentication and authoriz...

Single server deployment Single server reference configurations (deprecated) Single server deployment Druid includes a launch script, bin/start-druid that automatically sets v...

Automated cleanup for metadata records Automated cleanup strategies Configure automated metadata cleanup Segment records and segments in deep storage (kill task) Audit records S...

ZooKeeper Coordinator Leader Election Segment “publishing” protocol from Historical and Realtime Segment load/drop protocol between Coordinator and Historical ZooKeeper Apac...

ZooKeeper Coordinator Leader Election Segment “publishing” protocol from Historical and Realtime Segment load/drop protocol between Coordinator and Historical ZooKeeper Apac...

ZooKeeper Coordinator Leader Election Segment “publishing” protocol from Historical and Realtime Segment load/drop protocol between Coordinator and Historical ZooKeeper Apach...

OpenTSDB Emitter Introduction Configuration Druid to OpenTSDB Event Converter OpenTSDB Emitter To use this Apache Druid extension, make sure to include opentsdb-emitter ex...

Using rules to drop and retain data Set retention rules Use the web console Use the Coordinator API Rule structure Load rules Forever load rule Period load rule Interval load...