Learning from the October 20 AWS Outage: Questions Every Team Should Ask
On the morning of October 20, AWS us-east-1 services were degraded—in particular, DNS services for DynamoDB. Most of us didn’t find out from monitoring alerts or dashboards. We found out because the apps on our phones stopped working. That’s the reality of modern infrastructure incidents: they often surface as user-facing failures long before the official root cause analysis lands in your inbox. I wrote about this outage for Ippon Technologies, focusing on three critical aspects that go beyond just understanding what broke: ...