Ctrip Technology
Sep 2, 2016 · Big Data
Why Druid? Architecture, Indexing, Use Cases, and Lessons Learned
This article introduces Druid as an open‑source, distributed column‑store OLAP engine, explains its architecture and indexing mechanisms, discusses real‑time and batch data ingestion for order analytics at Qunar, compares it with other engines, and shares practical tips and pitfalls.
Big DataCaravelDruid
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