Databricks DBU Cost: Prices, Calculation and Bill Drivers

Databricks Units (DBUs) are normalized processing units used to bill Databricks compute, with total costs determined by DBUs consumed, the rate for the selected compute type and service tier, and, for classic compute, separate cloud infrastructure charges. Premium AWS list prices cited range from $0.15 per DBU for classic jobs compute to $0.75 for serverless all-purpose compute, while Enterprise pricing is higher; rates also vary by cloud and region. Cluster size, runtime, idle capacity, Photon acceleration, and use of all-purpose rather than jobs clusters can substantially affect consumption, while serverless pricing bundles infrastructure but prevents customers from applying their own VM discounts. The text recommends analyzing usage through Databricks billing system tables, moving scheduled workloads to jobs clusters, reducing idle time and oversized capacity, evaluating Photon based on performance gains, and considering committed-use discounts and cloud capacity discounts. It also presents Quanton, a Spark execution engine from Onehouse that runs in a customer’s cloud environment and charges by data volume rather than DBUs, citing vendor-provided benchmark and cost comparisons that portray it as a potentially lower-cost option for certain scheduled Spark workloads, though results depend on workload characteristics, contracts, infrastructure pricing, and measured performance.

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