How Tencent Cloud Optimized Apache Pulsar for Million‑Topic Scale
This article details Tencent Cloud's year‑long practical optimizations for Apache Pulsar, covering Ack hole impacts, TTL/Backlog/Retention strategies, delayed‑message handling, Admin API blocking, ZooKeeper and BookKeeper leaks, and multi‑level cache improvements to achieve stable, high‑performance messaging at massive scale.
