Manbang Technology Team

Apr 16, 2021 · Backend Development

Deep Dive into Sentinel’s Core Slot‑Chain Mechanism and Entry Process

This article explains Sentinel’s internal flow‑control workflow by dissecting the entryWithPriority method, the construction of the ProcessorSlot chain, the role of each slot such as NodeSelectorSlot, ClusterBuilderSlot, StatisticSlot, and how the SPI‑based SlotChainBuilder enables extensible, high‑performance request limiting in Java middleware.