政采云技术

Dec 8, 2022 · Big Data

Understanding Flink's Asynchronous Barrier Snapshotting (ABS) Checkpoint Algorithm

This article explains the Asynchronous Barrier Snapshotting algorithm used by Apache Flink for checkpointing, detailing its origins from the Chandy‑Lamport algorithm, its operation in both acyclic and cyclic dataflow graphs, barrier alignment, and the fault‑recovery process.