FB uses mysql in two very different ways - for the giant social-network database, mysql is basically a key-value store used as the storage layer for the graph d

FB uses mysql in two very different ways - for the giant social-network database, mysql is basically a key-value store used as the storage layer for the graph database built on top. Then for the thousands of small utility databases (small enough to fit on a single machine) it’s used in a very vanilla way.