@vektor.fm: eight hours of GitHub down and not one server was the problem 💀 the door in front of them ran out of network. one door, ten machines, and the whole job is choosing which machine gets you. round robin = next in the list, which is fair and also stupid 🙃 read all ten = correct and expensive 💸 pick two at random and take the emptier one = almost as good as reading all ten, for two reads 🚪⚡ field guide Nº013, link pinned 📌 #systemdesign #loadbalancer #backend #devops #softwareengineering