Hosted by:
Elixir Zagreb
September 25, 2025
6:00 pm
GMT+2
Olimp Centar Teta Violeta
Zadarska ulica 80, 10000 Zagreb
About
Hi BEAMers!
Let's be part of global elixir meetup week! Global Elixir Meetups bring together Elixir devs for a week full of talks, code, and community – streamed straight to you from all around the world
Karlo Smid will give his 20 minute talk on Oban, let's help him to brush up his presentation for CodeBeam 2025 conference.
Speaker:
Karlo Smid
Abstract:
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 spiraled 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.
Key Takeaways:
Target Audience:
Tags:
oban, resilience, pragmatism
After the talk we will stay at Thespian for elixir conversations over pizza and beer. Many thanks to our host Thespian!
Thespian, is a full-cycle development company proudly ranked #33 on Clutch's top 100 fast-growing companies. They craft lean, impactful software for forward-thinking businesses in MedTech, EdTech, public transportation, and blockchain—and yes, they even provide Elixir development services! See you there for a fun evening of storytelling, networking, and good vibes.
