http://localhost:1313/tags/job-scheduler/Recent content in Job-Scheduler on LorbicHugoenSun, 09 Aug 2026 14:00:00 +0530http://localhost:1313/designing-a-distributed-job-scheduler/Sun, 09 Aug 2026 14:00:00 +0530http://localhost:1313/designing-a-distributed-job-scheduler/<p>Linux <code>crontab</code> 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.</p> <p>The problem starts when we take a single-host tool and deploy it across a multi-node cloud setup.</p> <p>In <a href="http://localhost:1313/how-multi-tenant-saas-works/">Relay</a>, a multi-tenant AI API gateway system design, background jobs power core operations: every top of the hour, a job rolls up raw API usage tokens into tenant billing metrics; every 15 minutes, another job scans for expired API keys and purges them from cache; every 30 seconds, a health checker pings upstream LLM provider endpoints.</p>