« Stuff The Internet Says On Scalability For October 5, 2012 | Main | An Epic TripAdvisor Update: Why Not Run on the Cloud? The Grand Experiment. » Update: More background by Ikai Lan, who worked on the mobile server team at LinkedIn, says some facts were left out: the app made "a cross data center request, guys. Running on single-threaded Rails servers (every request blocked the entire process),