Week 14, year 2023

Sock swaps, giant maps & a new category of database : A recap of QCon London - Last week, the Event Store team attended QCon London, one of the largest international software development conferences. As exhibitors, we were excited to talk about all things Event Store and engage with attendees. Here's what we got up to. [Event Store blog]
Slack in your plans - Recent discussions with my colleagues showed that many software teams still run into trouble because they pack too much planned work into their iterations. Teams will usually run better when they have deliberate Slack, as it allows their delivery to be more predictable and gives them time to improve their environment. While writing that bliki post, I also defined two styles of task planning in agile projects. Timeboxed Iterations are used to break up work into small chunks with a regular cadence to reassess the work and future plans. Using a little ceremony around allocating work to iterations helps make problems visible so that they can be dealt with properly. Continuous Flow dispenses with that ceremony, so skilled teams often prefer it. [Martin Fowler]
Event stores are key-value databases, and why that matters - Event stores are the foundational building block of Event Sourcing. They’re also one of the biggest sources of confusion. They are databases… [Event-Driven by Oskar Dudycz]

Permalink | From 03 April 2023 to 09 April 2023 | Last updated on: Fri, 14 Apr 2023 22:06:33 GMT

Week 13, year 2023

Storing information in its highest form - There’s an interesting guideline I’ve been meaning to write about for a long time. I call it Storing information in its highest form. [Enterprise Craftsmanship]
Bounded Contexts: Manage the Understandability of Your Systems (DDD Australia) - The new DDD Australia user group just had its first meetup, and I was invited to speak. A major bottleneck for fast high quality software development is that people in the organisation don’t understand their systems and domains well enough. So I did a (mostly improvised) session on using Bounded Contexts to manage meaning and understandability. Watch on YouTube Abstract From Parnas’ paper in the 1970’s to microservices in the 2010’s, we’ve always used modularisation as a way to manage complexity in software. And yet, we still end up with big balls of mud. Technical separation alone isn’t enough. [Mathias Verraes]
Data Modeling in Event Sourcing Part 1 - Consistency vs Availability - Just like Relational Databases, data modeling is important for Event Sourced systems. A well designed data model will: [Event Store blog]
ChatGPT, revolution or not? - I started my career when StackOverflow didn’t exist. That’s how I quite often introduce myself. I’m that old. That’s, of course, nothing… [Event-Driven by Oskar Dudycz]

Permalink | From 27 March 2023 to 02 April 2023 | Last updated on: Sun, 2 Apr 2023 12:36:56 GMT

Axon Server Release 2023.0 - We're happy to announce that Axon Server 2023.0 is released. In this blog, we will share the new features and highlights to make your Axon Server experience even smoother! [AxonIQ Blog]
Ensuring uniqueness in Marten event store - Unique constraint validation is one of those things that looks simple but is not always easy. I explained already that, in Event Sourcing… [Event-Driven by Oskar Dudycz]

Permalink | From 20 March 2023 to 26 March 2023 | Last updated on: Fri, 24 Mar 2023 20:36:49 GMT

Event Store Cloud passes ISO 27001 audit & SOC 2 Type 2 assessment - Last year we announced that the Event Store team passed the ISO 27001 audit and SOC 2 Type 1 assessment for our Cloud offering. These are reviewed annually by our external auditors, A-LIGN. So beginning December 2022 we commenced the annual audit. [Event Store blog]
Projecting Marten events to Elasticsearch - I told you already that Projections are an Event Sourcing killer feature, and today I’d like to repeat that. In Marten, we embraced that and… [Event-Driven by Oskar Dudycz]

Permalink | From 13 March 2023 to 19 March 2023 | Last updated on: Sat, 18 Mar 2023 12:36:49 GMT

Event Store at Data Council - Event Store is excited to be joining this year's Data Council as a gold sponsor, taking place from 28th - 30th March. [Event Store blog]
Event Store at QCon London - Event Store is excited to be joining this year's QCon London as a gold sponsor, taking place from 27th - 28th March. [Event Store blog]
How to handle multiple commands in the same transaction - Let’s say that we’re starting a new project. It’s a small tool for internal needs, maybe even some sort of shadow IT project. It may also be… [Event-Driven by Oskar Dudycz]

Permalink | From 06 March 2023 to 12 March 2023 | Last updated on: Sun, 12 Mar 2023 20:36:54 GMT

Brass Birmingham becomes #1 on BoardGameGeek - A couple of weeks ago Brass Birmingham became the 8th game to top the ratings on BoardGameGeek - here's why I like it so much [Martin Fowler]
Fun with serial JSON - JSON serialisation is so much fun. We can make jokes and curse, but we must live with it. Surprisingly, that’s not getting simpler if we use… [Event-Driven by Oskar Dudycz]

Permalink | From 27 February 2023 to 05 March 2023 | Last updated on: Sun, 5 Mar 2023 20:36:50 GMT

Consistent hashing algorithm - This is a guest article by NK. You can view the original article Consistent hashing explained on systemdesign.one website. How does consistent hashing work? At a high level, consistent hashing performs the following operations: The output of the hash function is placed on a virtual ring structure (known as the hash ring) The hashed IP addresses of the nodes are used to assign a position for the nodes on the hash ring The key of a data object is hashed using the same hash function to find the position of the key on the hash ring The hash ring is traversed in the clockwise direction starting from the position of the key until a node is found The data object is stored or retrieved from the node that was found Terminology [High Scalability]
Don't let Event-Driven Architecture buzzwords fool you - I see a lot of new terms like Command-Event, Event-Based Compute, etc., presented around Event-Driven Architecture. Let me clear that up… [Event-Driven by Oskar Dudycz]

Permalink | From 20 February 2023 to 26 February 2023 | Last updated on: Sun, 26 Feb 2023 12:36:53 GMT