类似的数据库还有Google的Spanner。

 

参考：官网说明

　　　

Key capabilities

As a globally distributed database service, Azure Cosmos DB provides the following capabilities to help you build scalable, globally distributed, highly responsive applications:

• • Your application is instantly available to your users, everywhere. Now your data can be too.
  • Don't worry about hardware, adding nodes, VMs or cores. Just point and click, and your data is there.

• • Support for multiple data models including key-value, document, graph, and columnar.
  • Extensible APIs for Node.js, Java, .NET, .NET Core, Python, and MongoDB.
  • SQL and Gremlin for queries.

• • Easily scale throughput at  and  granularities, and change it anytime you want.
  • Scale storage  to cover your size requirements now and forever.

• • Get access to your data with single digit millisecond latencies at the 99th percentile, anywhere in the world.

• • 99.99% availability within a single region.
  • Deploy to any number of  for higher availability.
  •  of one or more regions with zero-data loss guarantees.

• •  models offer strong SQL-like consistency to NoSQL-like eventual consistency, and every thing in between.

• • Your data gets there fast, or your money back.
  •  for availability, latency, throughput, and consistency.

• • Stop worrying about keeping your database schema and indexes in-sync with your application’s schema. We're schema-free.

• • Five to ten times  than a non-managed solution.
  • Three times cheaper than DynamoDB.