Missing an order of magnitude? Twitter was claiming to be still running Rails in the mid-2010s, when they apparently had 200+ million active users. The service

Missing an order of magnitude? Twitter was claiming to be still running Rails in the mid-2010s, when they apparently had 200+ million active users. The service was finally sunsetted during the big Scala rewrite. They abandoned their message queue (Starling) written in Ruby early on. That abandonment was often misattributed to them abandoning Rails, I guess because of the shared usage of Ruby. The confusion was compounded to back when someone at Twitter (may have been Odeo at time?) posted a message board rant about how Rails does not scale because ActiveRecord did not allow connecting to multiple databases out of the box. That event seems to be the origins of the "Rails does not scale" mantra that swept the internet for a time. But, humorously, someone replied with a solution a few minutes later.