Showing category results for Migration

Editor's note (May 2026): This article was published in the Azure Cosmos DB Dev Blog before the launch of the dedicated Azure DocumentDB Dev Blog. Azure DocumentDB now has its own home for product announcements, engineering insights, migration guidance, technical deep dives, and developer tutorials. If you're building with Azure DocumentDB or the o...

After a successful public preview, we’re excited to announce the General Availability (GA) of online migration from RU-based Azure Cosmos DB for MongoDB to Azure DocumentDB (with MongoDB compatibility). This capability makes migration fast, simple, and cost-free—all through the Azure portal. Why This Matters If you’re running workloads on RU-base...

Co-authors: RK Iyer, Mangal Dutta Migrating stateful systems, such as databases, is a complex process. A frequent requirement for customers is to transfer data from DynamoDB to Azure Cosmos DB for NoSQL. This process involves several stages, including exporting data from DynamoDB, performing necessary transformations, and importing the data into...

MongoDB is a popular document database that offers high performance, scalability, and flexibility. Many organizations use MongoDB to store and process large volumes of data for various applications. However, managing and maintaining MongoDB clusters can be challenging and costly, especially as the data grows and the demand increases.  Azure ...

We’re thrilled to announce a significant enhancement to the Azure Cosmos DB Migration for MongoDB extension! Now, you can seamlessly migrate your MongoDB workloads to vCore-based Azure Cosmos DB for MongoDB with the added convenience of online migration capability. Let’s dive into the details. What Is the Azure Cosmos DB Migration for MongoDB Exte...

Azure Cosmos DB offers a range of options to fit the diverse needs of cloud applications, including the choice between serverless and provisioned throughput accounts. The serverless option is ideal for workloads with unpredictable patterns, but there are instances when transitioning to a provisioned throughput account is advantageous for enhanced p...

Partitioning is a key concept in Azure Cosmos DB, a fully managed, globally distributed, multi-model database service that offers unlimited scalability and low latency. By distributing data across multiple physical partitions based on the partition key(s), Azure Cosmos DB optimizes data access and distribution, profoundly impacting database perform...

The authors wish to thank Govind Kanshi (Principal PM Manager), Abinav Rameesh (Principal PM Manager), Kushagra Thapar (Principal Engineering Manager), Annie Liang (Sr. Software Engineer) and Faiz Chachiya (Sr. Cloud Solution Architect, CSU) for their valuable insights, and contributions during the Proof-of-Concept (PoC). Introduction  Azure Cosm...

Introduction Azure Cosmos DB is Microsoft's premier fully managed NoSQL database for modern app development. It is ideal for solutions including artificial intelligence, digital commerce, Internet of Things, booking management and other types of use cases. It offers single-digit millisecond response times, automatic and instant scalability along w...

Editor's note (November 2025): Azure Cosmos DB for MongoDB (vCore) has been renamed to Azure DocumentDB. This article was originally published before the rename, so it uses the product name that was current at the time. While the product name has changed, the technical concepts discussed in this article remain applicable unless otherwise noted. For...