温血

“ Once you dig into the size of the technical challenge Tumblr is handling on a daily basis, it’s not as surprising as our source made it seem. Tumblr is growing at 30 percent each month and, as High Scalability points out, has 500 million page views a day, a peak rate of ~40k requests per second, ~3TB of new data to store a day, all running on 1000+ servers. ”

- Cloud on fire: the burn rate on Tumblr’s big backend is building fast | VentureBeat