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AWS Open Sources and Expands Serverless Application Model (SAM) Implementation

by Steffen Opel Follow 3 Followers on  Apr 30, 2018

Amazon Web Services (AWS) recently open sourced its Serverless Application Model (SAM) implementation and added a new event source for CloudWatch Logs subscription filters. The preceding release featured a comprehensive expansion of options to configure and deploy REST APIs via Amazon API Gateway, including support for CORS headers, regional endpoints, and binary media types.

Architecture & Design Follow 1867 Followers

Events Are Reshaping the Future of Distributed Systems: Jonas Bonér at QCon London

by Jan Stenberg Follow 29 Followers on  Mar 15, 2018

There are many reasons why you should care about events; they drive autonomy, increase stability, help you move faster and allow for time travel, Jonas Bonér noted in his presentation at QCon London 2018, where he explored how events are reshaping modern system.

Architecture & Design Follow 1867 Followers

QCon London: Asynchronous Event Architectures with or without Actors

by Jan Stenberg Follow 29 Followers on  Mar 13, 2018

Synchronous request-response communication in microservices systems can be really complicated. Fortunately, asynchronous event-based architectures can be used to avoid this, Yaroslav Tkachenko claimed in a presentation at QCon London 2018, where he described his experiences with event-driven architectures and how Actors can be used in systems built on this architecture.

Architecture & Design Follow 1867 Followers

Event-Driven Microservices at O'Reilly Software Architecture Conference NY

by Mark Little Follow 12 Followers on  Mar 04, 2018

We've discussed event driven microservices architectures in the past, and the recent O'Reilly Software Architecture Conference NY had a focus on that topic which The New Stack's Joab Jackson reports upon.

Cloud Follow 250 Followers

AWS Makes Serverless Application Repository Generally Available

by Steffen Opel Follow 3 Followers on  Feb 28, 2018

After a brief preview period since re:Invent 2017, Amazon Web Services (AWS) made its new Serverless Application Repository generally available. Users can now discover, configure, and deploy serverless applications and components via the AWS Lambda console, which AWS considers an "ideal venue for AWS partners, enterprise customers, and independent developers to share their serverless creations".

Architecture & Design Follow 1867 Followers

AxonDB, a New Implementation of an Event Store

by Jan Stenberg Follow 29 Followers on  Feb 27, 2018

AxonDB is a new data storage purpose-built for event sourcing with support for transactions and pushed-based event publishing that recently was released by AxonIQ, the company behind the Axon Framework. To make sure performance is constant, the architecture is specifically targeting reading data — according to AxonIQ the performance is stable even with huge amounts of events stored.

Architecture & Design Follow 1867 Followers

Retroactive and Future Events in an Event Sourced System

by Jan Stenberg Follow 29 Followers on  Feb 09, 2018

When Thomas Pierrain started a new project with an asset management company, one important requirement was the ability to go back in time to understand why they took decisions that today look strange. At the recent DDD Europe 2018 conference in Amsterdam, Pierrain discussed his experiences when building an event sourced system that included some temporal challenges.

Architecture & Design Follow 1867 Followers

Evolving CQRS and Event Sourced Systems

by Jan Stenberg Follow 29 Followers on  Feb 07, 2018

After talking with people about upgrading of CQRS and event sourced systems, Michiel Overeem came to the conclusion that many working with event sourced systems lack an understanding and don’t know how to approach the problem. At the recent DDD Europe 2018 conference in Amsterdam he described how this was a trigger for him to do an exploratory research on how to evolve this kind of system.

Cloud Follow 250 Followers

Microsoft Announces General Availability of Azure Event Grid

by Steef-Jan Wiggers Follow 4 Followers on  Feb 02, 2018

Microsoft introduced Event Grid last year in August, and now it is generally available (GA). The Azure Event Grid is a service which enables developers to manage events in a unified way in Azure.

Architecture & Design Follow 1867 Followers

Events Should Be a First-Class Tool for Developers

by Jan Stenberg Follow 29 Followers on  Jan 29, 2018

We should use events much more often in software systems, Randy Shoup declared in a recent blog post about how events should be first-class citizens in systems. He believes we often underestimate the value of events as a tool. One example is that they can help us decouple parts of a system so that we can reason about them independently.

Architecture & Design Follow 1867 Followers

Event Sourcing in an Unreliable World

by Jan Stenberg Follow 29 Followers on  Nov 30, 2017

Examples of event sourced systems are often from process-oriented domains, like e-commerce, with incoming commands that generate events. But there are domains without processes that are intrinsically unreliable where we are collecting events from external event sources with transports that are unreliable, Lorenzo Nicora explained at the recent Microservices Conference µCon London 2017.

Architecture & Design Follow 1867 Followers

Jonas Bonér on How Events Are Reshaping Modern Systems

by Srini Penchikala Follow 34 Followers on  Nov 14, 2017

Jonas Bonér talked about event driven services and how event driven architectures (EDA) and event stream processing (ESP) technologies are helping with designing the modern applications based on distributed systems. He spoke at the recent Reactive Summit 2017 Conference.

Architecture & Design Follow 1867 Followers

Designing Event Sourced Microservices

by Jan Stenberg Follow 29 Followers on  Nov 12, 2017

Event sourced microservices is an area that hasn’t been explored nearly as much as it should be, Greg Young claimed at the recent Microservices Conference µCon London 2017, but he also strongly emphasized that you should not event source all your microservices. Instead, he recommends looking at individual services and applying the event sourcing pattern to services that actually benefit from it.

Architecture & Design Follow 1867 Followers

Vaughn Vernon Uses Reactive DDD to Model Uncertainty in Microservices

by Thomas Betts Follow 24 Followers on  Oct 09, 2017 6

Microservices and reactive systems bring with them uncertainty about messages arriving out of order, multiple times, or not at all. How to react to such uncertainty is a business decision, says Vaughn Vernon, and is best captured by modeling the uncertainty using concepts of Domain-Driven Design.

Architecture & Design Follow 1867 Followers

Event Architectures and Event Streaming

by Jan Stenberg Follow 29 Followers on  Sep 06, 2017

When moving from a monolithic system to a distributed or microservices system, you commonly also move from a single source of truth in one database to many databases and thus many sources of truth. Using an event architecture and persisting all events as a stream can give back the single source of truth, Ben Stopford claims in one of a series of blog posts about events, event streams and Kafka.

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