Direct source is available at: https://github.com/facebook/mysql-5.6 https://github.com/facebook/mysql-5.6 The social graph is indeed stored in MySQL via TAO.

Direct source is available at: https://github.com/facebook/mysql-5.6 https://github.com/facebook/mysql-5.6 The social graph is indeed stored in MySQL via TAO. A recent white paper about MyRocks is: https://research.fb.com/publications/myrocks-lsm-tree-database-storage-engine-serving-facebooks-social-graph/ https://research.fb.com/publications/myrocks-lsm-tree-databa...