Shuge Unlimited

Jul 12, 2026 · Databases

Milvus 3.0 Streaming Architecture: 16 PChannels, Five Interceptor Layers, and a Self‑Built WAL 5.8× Faster Than Kafka

Milvus 3.0 replaces the dual‑track write path of 2.x with a unified WAL‑first design, introduces a three‑layer channel model (PChannel, VChannel, CChannel) and a five‑layer interceptor chain, adds the Woodpecker WAL that outperforms Kafka/Pulsar by up to 5.8×, and provides pluggable back‑ends, atomic broadcasting, and provable recovery mechanisms.