A comprehensive guide to building a scalable real-time ETL pipeline using open-source tools including Kafka for data streaming, Debezium for change data capture, Flink for stream processing, ClickHouse as a lakehouse solution, Airflow for orchestration, and MinIO for object storage. The architecture separates hot and cold data layers, with real-time data stored locally for performance and historical data in remote storage for cost optimization. Includes practical implementation steps, Docker configurations, and dashboard creation using Apache Superset.
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