Data / ML, EngineeringHerb: Multi-DC Replication Engine for Uber’s Schemaless DatastoreJuly 25, 2018 / Global Schemaless, Uber’s fault-tolerant and scalable datastore, supports the 600-plus cities where we operate and the 15 million rides per day that occur on our platform, not to mention Uber Eats, Uber Freight, and other business lines. Since 2014, we have deployed more than 50 Schemaless instan