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Data & Analytics · Advanced

Lambda Architecture

A big data architecture with a batch layer for accurate historical views and a speed layer for real-time views, merged in a serving layer.

Definition

Lambda architecture gives low latency plus accurate recomputation but requires maintaining two code paths. Unified engines such as Spark and Beam have reduced its appeal.

Exam tip

Lambda = batch + speed layers (two code paths); Kappa = streaming only.

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