Azure Cosmos DB Blog

The latest news, updates and technical insights from the Azure Cosmos DB team

Migration - Azure Cosmos DB Blog

Optimizing database performance: Change partition keys of a container in Azure Cosmos DB for NoSQL API (preview)

March 27, 2024 Mar 27, 2024 03/27/24
Richa Gaur
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 ...

MongoDB to Azure Cosmos DB for NoSQL Migration – Learnings from Java SDK V4 Micro-Optimizations

February 22, 2024 Feb 22, 2024 02/22/24
authorsSubhasish Ghosh, Theo van Kraay
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  ...

Best Practices for Re-modeling Graph database to Azure Cosmos DB for NoSQL

January 8, 2024 Jan 8, 2024 01/8/24
authorsSubhasish Ghosh, Faiz Chachiya, Sandeep S. Nair
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 ...

New Offline Migration Feature in Azure Cosmos DB for MongoDB Migration Extension for Azure Data Studio

November 15, 2023 Nov 15, 2023 11/15/23
Sandeep S. Nair
In April 2023, we announced the public preview for end-to-end assessment in Azure Cosmos DB Migration for MongoDB extension in Azure Data Studio. We have recently added the offline migration capability of MongoDB to Azure Cosmos DB MongoDB vCore to the same extension. With this additional capability, you can run an end-to-end assessment ...

Introducing Intra-Account Collection Copy in Azure Cosmos DB for MongoDB

August 24, 2023 Aug 24, 2023 08/24/23
Richa Gaur
Azure Cosmos DB, Microsoft's globally distributed, multi-model database service, has always been at the forefront of empowering developers with innovative features and functionalities. In its pursuit of providing a seamless and efficient experience, Azure Cosmos DB recently announced the public preview of "Intra-Account Collection Copy" for ...

Announcing the New Azure Cosmos DB Desktop Data Migration Tool

March 23, 2023 Mar 23, 2023 03/23/23
Mark Brown
Today we're excited to introduce a brand new Azure Cosmos DB Desktop Data Migration Tool. You can find the new tool at https://github.com/AzureCosmosDB/data-migration-desktop-tool. Read more about it below and how to use it.   Some History The old Data Migration Tool (or DMT as it was known) was originally created in 2015 and had ...

Benchmarking Data Migration from Cassandra to Azure Cosmos DB Cassandra API

June 28, 2022 Jun 28, 2022 06/28/22
authorsAlp Kaya, Akash Shankaran
About the authors:  Akash & Alp We are working with many customers who for a variety of reasons such as not having to deal with patching the O/S, upgrades, scalability, etc. are looking to move their Cassandra IaaS workloads to Azure and one of the destinations is Azure Cosmos DB Cassandra API. We wanted to explore and dive deeper into...
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Integrating Azure Cosmos DB Cassandra API with Apache Kafka using Kafka Connect

December 14, 2020 Dec 14, 2020 12/14/20
Abhishek Gupta
Azure Cosmos DB Cassandra API is a fully managed cloud service that is compatible with Cassandra Query Language (CQL) v3.11 API. It has no operational overhead and you can benefit from all the underlying Azure Cosmos DB capabilities such as global distribution, automatic scale out partitioning, availability and latency guarantees, encryption ...