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Taming 20 Million Oban Jobs in Production - Karlo Smid | Code BEAM Europe 2025

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  • description: ✨ This talk was recorded at Code BEAM Europe in November 2025. If you're curious about our upcoming event, check https://codebebeameurope.com ✨ --- What happens when a queue meant for thousands of jobs swells to 20 million—and keeps growing? In this talk, I’ll walk you through a real-world incident where our Oban queue spiralled out of control in production. We’ll dissect what led to this situation, how we investigated the root cause without halting traffic, and the changes we made to restore stability. This isn’t just a story about background jobs - it’s a practical lesson in diagnosing live systems, managing back pressure, and making safe trade-offs in production. As a bonus, I’ll share battle-tested design tips for building resilient systems with Oban - from queue isolation and job retries to rate-limiting and observability. Whether you’re scaling a system or preventing your own “20 million jobs” moment, these lessons will help. --- Let's keep in touch! Follow us on: 💥 Bluesky: / codebeam.bsky.social 💥 Twitter: / codebeamio 💥 LinkedIn: / code-sync
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  • title: Taming 20 Million Oban Jobs in Production - Karlo Smid | Code BEAM Europe 2025
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