Azure DocumentDB is now part of the Azure Cosmos DB

When Microsoft introduced Azure DocumentDB, it was just a Document database, and Microsoft’s NoSQL Solution in the cloud.

Now recently, DocumentDB was moved to Azure’s new service: “Cosmos DB”

Azure Cosmos DB is Microsoft’s globally distributed, multi-model database service for mission-critical applications.

Azure Cosmos DB provides turn-key global distribution, elastic scaling of throughput and storageworldwide, single-digit millisecond latencies at the 99th percentile, five well-defined consistency levels, and guaranteed high availability, all backed by industry-leading SLAs.

Azure Cosmos DB automatically indexes datawithout requiring you to deal with schema and index management. It is multi-model and supports document, key-value, graph, and columnar data models.

As of now, if you go to Azure portal and try to create an Azure Cosmos DB, you have to select one of the 4 APIs available there:

Gremlin (Graph)
MongoDB
SQL (DocumentDB)
Table (key-value)

As you can see, even table storage, which used to be a separate storage service is now under the Azure Cosmos DB’s cloud.

Also, if you have existing DocumentDB resources in your Azure subscription, Microsoft is transitioning all of those and their data to Azure Cosmos DB for no additional charge. So nothing to worry about there and your existing stuff should still work!

I hope with this, you don’t get surprised when you login to Azure portal and see that your DocumentDB resources have been renamed!

Cheers!