It's sometimes mentioned in their blog posts: https://blog.twitter.com/engineering/en_us/topics/infrastructure/2017/the-infrastructure-behind-twitter-scale.htm

It's sometimes mentioned in their blog posts: https://blog.twitter.com/engineering/en_us/topics/infrastructure/2017/the-infrastructure-behind-twitter-scale.html https://blog.twitter.com/engineering/en_us/topics/infrastruc... Not a lot of specifics, but there's some interesting tidbits: > Hadoop: We have multiple clusters storing over 500 PB divided in four groups (real time, processing, data warehouse and cold storage). Our biggest cluster is over 10k nodes. We run 150k applications and launch 130M containers per day.