Can you give an example of a system where effectively the use of a distributed database.
At the same time that:
1. The specific binding data to a specific server was notobvious
For example, in the patient database of a large network of clinics with branches in many cities — binding is obvious, since it is most efficient to store data about the patient Murmansk Murmansk on the server, not in Ryazan.
2. Servers must be removed from each other to transfer information between them was a little much.
I have enough example that is described in a few words. For example, database of companies engaged in the fact, which stores this information ;)
What you need? Want to explore the thesis project methods of finding the optimal placement of information on the servers of a distributed database. And for that, you want to find more or less close to life example.