Talk about highload, the architecture of large scale projects and the history of Topface creation (CEO CryptoB2B is also co-founder of Topface, Imigize, etc). In Topface about 115 million users. About 66% of users are not from Russia. Attendance: peak – 2,000,000 DAU, an average of 1.6 million unique people a day. At the same time, up to 90,000 people can be online. Now we have about 400-500 servers. Traffic is 1 Gbit / s, about 25,000 requests to SQL per second, 60,000 concurrent connections (Established) to nginx, about 8,000 requests per second to php (dynamic load), the volume of all MySQL databases is 60 Tb. The development team – 50 people, the whole company – 110.
Since 2011, the master class “Development of a large scalable project from scratch”, theses and the program – http://php.spb.ru