Mark Brown's Avatar

Mark Brown

@markjbrown.com

I work on the Azure Cosmos DB team. ❤️ Distributed systems and databases. Helping developers design for infinite scale.

970
Followers
180
Following
3,954
Posts
17.05.2023
Joined
Posts Following

Latest posts by Mark Brown @markjbrown.com

Post image

I was today years old when I learned about this.
Why is nobody talking about this? 💊
This is great what he is doing, unlike most billionaires...
👍🏼 @mcuban.bsky.social

24.06.2025 10:58 👍 1177 🔁 255 💬 64 📌 19
Preview
Powering Real-Time Messaging at Scale with Azure Cosmos DB - Azure Cosmos DB Blog Discover how Microsoft’s unified messaging platform—powering Teams, Copilots, and ACS—leverages Azure Cosmos DB to deliver real-time communication at global scale. Learn about the key capabilities tha...

Not many people know that Microsoft Teams runs on Cosmos DB. Even fewer people know that they do TRILLIONS of transactions per day on Petabytes of data.

Learn how and why they use Cosmos DB.

devblogs.microsoft.com/cosmosdb/pow...

30.05.2025 19:26 👍 8 🔁 0 💬 0 📌 1
Learn to build multi-agent apps at our hands-on-lab at MS BUILD.

Learn to build multi-agent apps at our hands-on-lab at MS BUILD.

If you're going to Microsoft BUILD come learn how to build multi-agent apps using Semantic Kernel in C# or LangGraph in Python at our hands-on-lab.

build.microsoft.com/en-US/sessio... There's another earlier delivery as well.

06.05.2025 15:17 👍 2 🔁 0 💬 0 📌 0
High-Scale Data Processing over 1000s of Devices with Azure Cosmos DB and Expanso - Ep. 104
High-Scale Data Processing over 1000s of Devices with Azure Cosmos DB and Expanso - Ep. 104 YouTube video by Azure Cosmos DB

Ep. 104 of #AzureCosmosDB TV is here!
🎥 High-Scale Data Processing over 1000s of Devices with Expanso

See how Expanso + Azure Cosmos DB handle 50M records in under a minute with 1,000 edge nodes 🌍

📺 youtu.be/F2VMVjSxIHY
#EdgeComputing #DistributedSystems #NoSQL

25.04.2025 16:30 👍 1 🔁 1 💬 0 📌 0
Azure Cosmos DB Conf 2025
Azure Cosmos DB Conf 2025 YouTube video by Azure Cosmos DB

Come check out the latest for @azurecosmosdb.com and see the exiting things customers are building at Cosmos DB Conf. Streaming live NOW!!!

www.youtube.com/watch?v=qXSu...

15.04.2025 16:12 👍 1 🔁 0 💬 0 📌 0
Azure Cosmos DB Gallery

I just updated our Samples Gallery with our latest great sample apps.

1. Multi-agent sample using OpenAI Swarm and Cosmos DB.

2. Full-day workshop building multi-agent apps using LangGraph in Python or Semantic Kernel Agents in C#.

azurecosmosdb.github.io/gallery/

07.04.2025 19:58 👍 2 🔁 0 💬 0 📌 0
Preview
GitHub - AzureCosmosDB/banking-multi-agent-workshop: A multi-agent sample and workshop for a retail banking scenario. Implemented in both C# using Semantic Kernel Agents and Python using LangGraph. A multi-agent sample and workshop for a retail banking scenario. Implemented in both C# using Semantic Kernel Agents and Python using LangGraph. - GitHub - AzureCosmosDB/banking-multi-agent-worksh...

We built a new 1-day workshop on building Multi-Agent AI Apps.

Choose your own adventure and learn using LangGraph (python) or Semantic Kernel Agents (C#), or both.

All the code is here. Deploy/run full sample on main branch or use start branch for workshop.

github.com/AzureCosmosD...

03.04.2025 22:27 👍 2 🔁 0 💬 0 📌 0

Time for a trip to BC 😀

#CoinStarPayForGas

11.03.2025 00:41 👍 0 🔁 0 💬 1 📌 0
Post image

New Video Series Alert! 🎬 Learn how to optimize performance, reduce costs, and scale efficiently with Azure Cosmos DB Design Patterns! 🚀 Watch now: aka.ms/AzureCosmosD... #AzureCosmosDB

24.02.2025 16:15 👍 3 🔁 1 💬 0 📌 0
Vietnamese iced salted cream coffee

Vietnamese iced salted cream coffee

Enjoying Tet with a Vietnamese salted cream iced coffee.

Great way to start the new year.

29.01.2025 22:48 👍 5 🔁 0 💬 2 📌 0
Azure Cosmos DB Shorts: What are embeddings?
Azure Cosmos DB Shorts: What are embeddings? YouTube video by Azure Cosmos DB

📊 Ever wondered what embeddings are and how they power AI applications? 🤔
@markjbrown.com breaks it down in this short video, covering everything from LLMs to recommendation engines! 🚀
📺 Watch now: youtu.be/wF8xsL4w0_I
#AzureCosmosDB #AI

29.01.2025 15:06 👍 6 🔁 2 💬 0 📌 1
How do distributed databases actually work?
How do distributed databases actually work? YouTube video by PulumiTV

Distributed databases talk with @markjbrown.com

We covered:
• Scaling OUT (adding nodes) vs. UP (bigger servers)
• Why partitioning is so important
• How session-level consistency lets you read your writes without the cost of full strong consistency

www.youtube.com/watch?v=Wv0q...

27.01.2025 15:10 👍 3 🔁 1 💬 0 📌 0
What You Missed in 2024 in the World of Databases, with Andy Pavlo
What You Missed in 2024 in the World of Databases, with Andy Pavlo YouTube video by Convex

Got to sit down with Professor @andypavlo.bsky.social on the latest @convex.dev Databased podcast for his 2024 databases year in review!

www.youtube.com/watch?v=1B-M...

24.01.2025 20:18 👍 28 🔁 9 💬 1 📌 0

Let me know if you need quotes or anything. Will get you connected.

24.01.2025 21:31 👍 1 🔁 0 💬 1 📌 0

No different. This is our MongoDB vCore compatible API.

24.01.2025 21:30 👍 1 🔁 1 💬 1 📌 0

It's our MongoDB vCore API so a MDB compatible endpoint, but the underlying implementation is built on PostgreSQL.

We're really excited by this as well!!!

24.01.2025 18:53 👍 2 🔁 1 💬 1 📌 0

This is our MongoDB vCore engine. Not our Nosql one.

23.01.2025 22:48 👍 2 🔁 0 💬 2 📌 0

Lolz

14.01.2025 04:26 👍 5 🔁 0 💬 0 📌 0
Preview
Cosmos DB Embeddings Generator Sample - Azure Cosmos DB Blog Ever since our first preview announcement for vector indexing and support for DiskANN and then again when we announced the GA for these features, customers have been asking us to make it easier to gen...

Customers have been asking us to make it easier to automatically generate embeddings on their data in @azurecosmosdb.com

So we created this: devblogs.microsoft.com/cosmosdb/emb...

This sample shows how to use a Cosmos DB Trigger & Output binding in Functions to do it automatically.

14.01.2025 02:45 👍 9 🔁 4 💬 2 📌 0
Preview
Mark Zuckerberg Defends Decision To Fly Confederate Flag At Facebook Headquarters MENLO PARK, CA—Claiming that the banner embodied the spirit of the company’s values, Mark Zuckerberg defended his controversial decision Friday to fly a Confederate flag at the Facebook headquarters. ...
11.01.2025 18:05 👍 57777 🔁 11296 💬 2215 📌 1091

Tailor made for his audience.

10.01.2025 01:08 👍 1 🔁 0 💬 1 📌 0

Looks like your DM's are closed. Please feel free to DM me. Mine are open. Would be happy to connect with you.

Thanks.

09.01.2025 17:30 👍 0 🔁 0 💬 0 📌 0

Hi Igor. Would it be possible to get some more understanding with your experience Cosmos DB?

We've invested a lot over the years to make Cosmos a cost-efficient NoSQL database for any size workload, especially small and serverless use-cases.

I'd love to get more details. Will DM you. Thanks!

09.01.2025 16:55 👍 0 🔁 0 💬 2 📌 0
Visualizing Embeddings in 3D graph

Visualizing Embeddings in 3D graph

Embeddings are at the heart of how an LLM works. But understanding how they work is hard.

To help, I created a simple Python Notebook that takes an array of words and plots them in a 3D graph to show how the compare in a multi-dimensional space.

Feel free to check out.
github.com/AzureCosmosD...

19.12.2024 13:44 👍 9 🔁 5 💬 1 📌 0

I do this for my directs. I feel the same way.

14.12.2024 05:29 👍 5 🔁 0 💬 0 📌 0
Post image

Notre Dame in Paris re-opens this wkd.
I'm a cathedral nerd. Here are some things that you might not notice about it – just from that one photo.
THREAD.

1. You can see straight down the nave to the apse. No medieval English cathedral has that.

02.12.2024 09:58 👍 1839 🔁 603 💬 102 📌 160
Preview
Performance Tuning for Azure Cosmos DB, Tue, Dec 10, 2024, 10:00 AM | Meetup Azure Cosmos DB is a fully managed database service, freeing developers from database management tasks. However, as a developer, you still have important responsibilities,

I will be speaking at the Azure Cosmos DB Global User Group on December 10th about performance tuning for @azurecosmosdb.com
Please use the following link to register now.
#AzureCosmosDB #MvpBuzz

www.meetup.com/azure-cosmos...

06.12.2024 15:49 👍 5 🔁 2 💬 0 📌 0

I spent 10 minutes this morning making that go back to what it SHOULD be.

06.12.2024 01:13 👍 1 🔁 0 💬 1 📌 0
Post image

I made it by 2 minutes. They were yelling at me like it was my fault.

The lack of awareness for what it's like transiting this airport is hilarious 😂

04.12.2024 09:10 👍 5 🔁 0 💬 1 📌 0
Post image

I am once again in CDG and ONCE AGAIN something completely stupid is keeping me from making my connection.

This time they won't let us leave the jet way after getting off the plane. No explanation given.

04.12.2024 08:30 👍 3 🔁 0 💬 2 📌 0