The Roblox Outage
Just before Halloween 2021, Roblox engineers experienced a horror story: a service outage that also took down critical monitoring systems. It seemed like the issue was a hardware problem, but it wasn’t. Users were frustrated, and the clock was ticking. After three full days of downtime, service was finally restored on Halloween day. While the incident itself was an IT nightmare, Roblox’s detailed technical post-mortem several months later was an excellent way to bounce back.