Big Data Technology & Architecture

Dec 25, 2019 · Big Data

Understanding Flink StreamPartitioner and Its Implementations

Flink’s StreamPartitioner abstracts data routing in DataStream, offering eight built‑in partitioners—including Global, Shuffle, Rebalance, KeyGroup, Broadcast, Rescale, Forward, and Custom—each with distinct channel selection logic, illustrated with source code snippets and explanations of their runtime behavior.