Ray's Galactic Tech

Jan 17, 2026 · Backend Development

How XXL-JOB Achieves High‑Availability Distributed Scheduling with Decoupled Executors

This article explains how the lightweight XXL‑JOB framework separates the scheduler from executors, provides high‑availability through database‑locked clustering and executor HA, supports elastic scaling in Kubernetes, and offers detailed task‑governance and performance optimizations compared with Quartz.