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Dremio features a scale-out architecture. Dremio is designed to scale from one server to thousands of servers in a single cluster. Dremio’s three main capabilities are Unified Analytics, SQL Query Engine, and Lakehouse Management.
There are two distinct node-types in a Dremio instance, and the service’s property determines whether the node is enabled with the coordinator or engine role. Each node type can be scaled independently.
Dremio utilizes highly optimized physical representations of source data called data reflections. A reflection store can live on HDFS, MapR-FS, cloud storage such as S3 or S3-compatible, or direct-attached storage (DAS).