Distributed Job Scheduler
mediumOpen designCommonly asked~45 minHLD roundBar raiserSDE-2 and upAmazonGoogleAtlassianRazorpaySwiggyQueues & AsyncResilienceConsistency & Consensus
The question, as asked
“Design a scheduler that runs jobs — some on a cron, some once at a future time. It must not miss a job, and it must not run one twice.”
Your answer, first
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This one is listed because it comes up constantly — the three-depth answer, follow-ups and red flags are being written. Attempt it above anyway; that part works, and the guides below cover the ground the drill will.