Good day, dear!
A few similar issues, please help if you know:
1. Approximately how many servers need to support a load of 100,000 people per day, peak — 150.000 (project big social network, but optimized under a load)?
In this case: Project in Java
The Jboss application server
PostgreSQL or MySQL
2. What class are the server for such tasks and how much average is one?
3. Who knows examples of famous projects, please share (Habr, contact, etc.)?
Thanks for the help!