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Design a Distributed Job Scheduler is a medium system design interview question covering Distributed Systems, scheduling, queues — the kind asked at FAANG (Facebook/Meta, Apple, Amazon, Netflix, Google) and AI-first companies like Anthropic, OpenAI, and Nvidia.
Design a scheduler that runs 500 million job executions per day: one-shot delayed jobs and recurring cron jobs. Workers crash mid-job, 2 million jobs can be due at midnight in the same minute, and job owners expect configurable retries with dead-lettering.
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