Couchbase Server is an open source NoSQL database, and it's available in an enterprise edition. It is a scalable, high performance NoSQL database engineered to support AWS. With the enterprise edition, customers can leverage secure cross data center replication and rack awareness to enable high availability with AWS availability zones. Couchbase Server can be deployed as a distributed cache, as a key / value store, or as a document database. Its easy to scale, it provides consistent low latency at high throughput, and it's always on. In addition to Couchbase Server, we also have Couchbase Sync Gateway, a scalable easy-to-configure sync tier manages sync requests from our embedded database Couchbase Lite back to Couchbase Server. Create custom data routing and/or sharing with 100x less code using Couchbase Sync Gateway.