Large-Scale Systems
Cloudadorn Academy
What actually changes when an app outgrows one computer? Large-Scale Systems follows Studio Hop, a class-booking app for yoga and spin studios run by Shelley's friend Jo and built by Jo's brother Sam, who carries the pager. Jo, Sam and Studio Hop are all made up for the show. Shelley brings each week's trouble to Rob, who explains what is going on underneath. Every one of the forty-six episodes starts from something that went wrong at Studio Hop that week, from a Monday booking rush and twenty-three places sold for twenty bikes to a phished login, a certificate that expired on a Saturday and a cloud bill three times what the spare room cost. Each one adds a single move and says out loud what that move costs. The app grows from one computer in Jo's spare room to copies, queues, caches, rented machines, Kubernetes and two regions that disagree about the last bike. The evidence is real: Shopify's Black Friday rehearsals, AT&T's 1990 outage, the Canadian regulator's report on Rogers, Ca