Designing a Distributed Job Scheduler in Go: Partitioning, Locking, and Backpressure

Linux crontab is one of the most elegant pieces of software ever written for single-host automation. It is simple, clear, and has kept Unix systems running reliably since 1975. The problem starts when we take a single-host tool and deploy it across a multi-node cloud setup. In Relay , a multi-tenant AI API gateway system design, background jobs power core operations: every top of the hour, a job…