Tencent Cloud Middleware

Aug 17, 2020 · Cloud Native

How Apache Pulsar’s Multi‑Replica I/O Modes Enable Layered Storage

This article explains how Apache Pulsar’s layered architecture separates I/O modes, uses BookKeeper for durable storage, and leverages multi‑replica write quorums and hierarchical caches to provide efficient tail‑read, catch‑up read, and long‑term storage options such as S3, Azure and GCS.