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Beike’s OLAP platform has progressed from a basic Hive‑MySQL batch pipeline to a Kylin‑based single‑engine solution, and now to a flexible multi‑engine architecture that uses a query‑engine layer to route metrics across Kylin, Druid, ClickHouse and Doris, dramatically cutting cube‑build times, supporting real‑time ingestion, and paving the way for further engine consolidation and automated performance routing.
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This article presents an in‑depth overview of Beike's four‑layer streaming data platform, covering the foundational infrastructure, capability aggregation, data content, and output layers, as well as the challenges of metadata management, real‑time processing, and productization through the Ark and Tianyan systems.