Apache Druid

Apache Druid is an open-source, high-performance, real-time analytics database designed for fast OLAP (Online Analytical Processing) workloads on large-scale datasets. It enables organizations to ingest streaming and batch data, execute sub-second analytical queries, and build interactive dashboards, business intelligence applications, and time-series analytics platforms through its distributed and scalable architecture.

• Supports real-time and batch data ingestion from multiple data sources.
• Provides sub-second query performance for interactive analytics and dashboards.
• Offers distributed, horizontally scalable architecture for handling massive datasets.
• Supports SQL queries alongside native JSON-based query APIs.
• Includes automatic indexing, partitioning, and data compaction for optimized performance.
• Enables fault tolerance and high availability through distributed service components.
• Integrates with popular visualization, streaming, and data processing platforms.
• Provides a web-based user interface for cluster management, monitoring, and query execution.

Apache Druid usage:

$ sudo su
$ apt update
$ cd /opt/druid
$ docker compose restart
$ Check services status: docker ps -a

$ Access its WebUI in your browser:
# http://YOUR_SERVER_IP:8888