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Mar 28, 2021 · Big Data

Flink Stream‑Batch Integration: Layered Architecture, Unified SDK, DAG Scheduler, Shuffle, and Fault‑Tolerance

This article explains how Apache Flink has evolved into a unified stream‑batch engine by introducing a three‑layer architecture, a unified DataStream SDK, a pipeline‑region‑based DAG scheduler, a common shuffle framework, and enhanced fault‑tolerance mechanisms to address efficiency, consistency, and resource‑utilisation challenges in real‑time big‑data processing.