Tag: druid
8 articles
Apache Druid Storage & Query Architecture: Segment/Chunk/...
Apache Druid data storage and high-performance query path: from DataSource/Chunk/Segment layering, to columnar storage, Roll-up pre-aggregation, Bitmap...
Apache Druid + Kafka Real-time Analysis: JSON Flattening ...
Scala Kafka Producer writes order/click data to Kafka Topic (example topic: druid2), continuous ingestion in Druid through Kafka Indexing Service. Since...
Apache Druid Real-time Kafka Ingestion: Complete Practice...
Complete practice of Apache Druid real-time Kafka ingestion, using network traffic JSON as example, completing data ingestion through Druid console's Streaming/Kafka wizard, parsing time column, se...
Apache Druid Architecture & Component Responsibilities: C...
Apache Druid component responsibilities and deployment points from 0.13.0 to current (2025): Coordinator manages Historical node Segment...
Apache Druid Cluster Deployment [Part 1]: MySQL Metadata ...
Apache Druid 30.0.0 deployable solution covering MySQL metadata storage (mysql-connector-java 8.0.19), HDFS deep storage and HDFS indexing-logs, plus Kafka...
Apache Druid Cluster Mode [Part 2]: Low-Memory Cluster Pr...
Low-memory cluster practice for Apache Druid 30.0.0 on three nodes: provides JVM parameters and runtime.properties key items for Broker/Historical/Router, explains off-heap memory and processing bu...
Apache Druid Real-time OLAP Architecture & Selection Points
Apache Druid real-time OLAP practice: suitable for event detail with time as primary key, sub-second aggregation and high-concurrency self-service analysis.
Apache Druid Single-Machine Deployment: Architecture Over...
Apache Druid 30.0.0 for single-machine quick verification and engineering implementation, systematically reviewing Druid architecture (Coordinator, Historical,...