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José da Cruz

Enterprise Architect, and Life Thinker

José da Cruz

Enterprise Architect, and Life Thinker

Tag: job scheduling

architecture

Designing a Distributed Job Scheduler: Why “Just Use Cron” Doesn’t Scale

josedacruz, August 26, 2026August 26, 2026

TL;DR: A single cron job looks simple until the server it lives on goes down, and “just add a second cron server” quietly turns into a duplicate-execution bug. A real distributed job scheduler needs a shared source of truth for what’s due, a way for exactly one worker to claim…

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