LinkedIn.com
- Oracle (Relational Database)
- MySQL (Relational Database)
Databases replicated on multiple servers for high availability. Each specific Service uses its own domain-specific DB.
LinkedIn stats:
- 22 million members
- 4+ million unique visitors/month
- 40 million page views/day
- 2 million searches/day
Sources:
- http://hurvitz.org/blog/2008/06/linkedin-architecture/
