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

Azure Cosmos DB design patterns – Part 3: Distributed counter

Over the years, customers have asked us for help in designing applications around specific scenarios they were trying to achieve. In some cases, these centered around implementing certain patterns using a JSON-based NoSQL database. Some of these patterns are very common in the NoSQL world, but not well understood by those new to NoSQL databases. Other patterns were very specific to the Cosmos DB service itself in demonstrating how to leverage specific capabilities to solve difficult architectural challenges. We’ve been capturing these patterns and sharing them with customers individually. We felt now was a...

Introducing Burstable Tier (M25) on Azure Cosmos DB for MongoDB vCore

Introducing the new burstable cluster tier (M25) in Azure Cosmos DB for MongoDB vCore, designed to cater to dynamic workloads with varying CPU usage patterns. Burstable SKUs provide an intelligent solution for small database workloads, offering minimal CPU performance during idle periods while seamlessly ramping up to full CPU power when faced with increased traffic or workload demands. This adaptability ensures peak performance precisely when required, all while delivering substantial cost savings. By reducing the initial price point of our service, we aim to facilitate user onboarding and exploration of Mon...

Announced at MS Ignite 2023: MongoDB vCore, free offer, Copilot, and more!

Microsoft Ignite 2023 was abuzz with all things AI on opening day of the event – and the excitement continues! The show kicked off with Microsoft CEO Satya Nadella’s keynote on how Microsoft is creating new opportunities across platforms and solutions in the era of AI. Azure Cosmos DB is at the forefront of these solutions - Satya gave a shoutout to Azure Cosmos DB's new integrated vector database capabilities in his keynote - offering several new improvements to power the most innovative generative AI applications. Take a look below at what we announced today and what’s still to come! Empowe...

Announcing Dynamic Scaling Per Region and Per Partition for Azure Cosmos DB’s Autoscale

We’re excited to announce dynamic scaling per region and per partition (public preview) for all new Azure Cosmos DB accounts to help optimize and lower costs for your workload! By default, Azure Cosmos DB autoscale scales workloads based on the most active region and partition. For non-uniform workloads that have different workload patterns across regions and partitions, this can cause unnecessary scale-ups. Over the years, we’ve heard feedback from our autoscale customers that this can be pretty unforgiving for unpredictable workloads. With this improvement to autoscale, the per region and per partition au...

What’s New for Azure Managed Instance for Apache Cassandra at Microsoft Ignite 2023: Building the Next Generation of AI Apps


Get ready for Microsoft Ignite 2023, where we'll be unveiling exciting new features and enhancements for Azure Managed Instance for Apache Cassandra. With the introduction of vector search, turnkey major version upgrades, turnkey replication for multi-region clusters, turnkey hybrid cluster setup for live migrations, and L-series VM SKUs with write-through cache, developers can now handle major Cassandra upgrades seamlessly, deploy multi-region clusters effortlessly, carry out live migrations easily, and reduce tail latencies and improve performance. Join us at Microsoft Ignite 2023 to discover how ...

Integrated Vector Database in vCore-based Azure Cosmos DB for MongoDB is Generally Available!


We’re thrilled to share the exciting news that the integrated vector database is now officially available to all users of Azure Cosmos DB for MongoDB vCore. This groundbreaking feature paves the way for a multitude of fresh opportunities in the realm of secure and resilient AI-driven applications while making Azure Cosmos DB for MongoDB vCore your go-to data source. We're also announcing new capabilities to enable you to perform faster, more accurate operations with ease: The integrated vector database enables you to seamlessly integrate AI-powered applications, including those harnessing ...

Announcing Azure Cosmos DB Mirroring in Microsoft Fabric – Private Preview


We are excited to announce private preview availability of mirroring your Azure Cosmos DB databases in Microsoft Fabric. Mirroring provides a modern way of accessing your Azure Cosmos DB databases in Microsoft Fabric, helping unify your data estate, thereby eliminating data silos. With just a few clicks, you can now bring your Azure Cosmos DB databases into Microsoft Fabric, for rich business insights using Fabric’s built-in advanced analytics and AI capabilities. Your Cosmos DB operational data is seamlessly and incrementally replicated into Fabric OneLake in near real-time. Data in OneLake is stored in open-s...
Introducing Vector Database in Azure Managed Instance for Apache Cassandra!

We are delighted to announce Cassandra 5.0 in public preview for Azure Managed Instance for Apache Cassandra, with vector search capabilities enabled! Vector Database in Cassandra 5.0 In Cassandra 5.0, the integrated vector database is backed by storage-attached indexes that represent data as vectors in a multi-dimensional space. We use DiskANN, a Microsoft Research-born algorithm that allows for adding new vectors to an index without the need for reindexing, which causes downtime in other vector stores. DiskANN enables fast and accurate similarity-based searches, which can be used to build next-gener...

Run Mongo workloads for free with Azure Cosmos DB for MongoDB vCore – Free Tier

In the ever-evolving landscape of cloud services, Azure Cosmos DB made a notable advancement a few years ago by introducing a dedicated free tier. Today, we're thrilled to extend this remarkable feature to Azure Cosmos DB for MongoDB vCore, empowering our users to unlock the full potential of this platform without any financial commitments. So, if you are gearing up to create a new application, run quick proof of concepts (POC) or manage small-scale production workloads with Azure Cosmos DB then your journey has become smoother with our new Free Tier offering. The Free Tier comes with a default 32GB disk, and ...