Does anyone know 1 major consumer-facing site that was able to scale with Rails? I know Twitter kind of had to move away from Rails due to scalability issues. GameBattles.com also had to back away from Rails after their uptime dropped to 80%. I am not trying to tarnish Rails, I am just curious to learn about some success stories involving Rails at very large scale.
Github, Airbnb, Groupon. Three reasons people think Rails doesn't "scale": (1) Earlier versions were adopted by applications with anomalous scaling requirements. So, the project had to "learn to scale" on its feet in a very short amount of time. There were predictable hiccups. Or, put even more simply: it's a young framework that got adopted quicker than people expected. (2) There's an expectation that web platforms…
I can attest to this. I did consulting work for Match.com a few years ago back when they ran around 20 million uniques/month. They are a .NET shop here in Dallas, TX where you can throw a stone and likely hit a .NET developer.
After a few years, their stack looked nothing like a typical ASP.NET stack. It included things like custom database replication, memcached, config pulled out of files and stored in actual code, and lots of other things that went way off the beaten path from standard practices for .NET. New developers often had to learn "The Match Way" before they could be effective. Many things that worked with typical .NET enterprise apps would break down spectacularly when massive scale was thrown at them.