InfoQ Homepage Event Driven Architecture Content on InfoQ
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AWS Open Sources and Expands Serverless Application Model (SAM) Implementation
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.
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Events Are Reshaping the Future of Distributed Systems: Jonas Bonér at QCon London
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.
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QCon London: Asynchronous Event Architectures with or without Actors
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.
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Event-Driven Microservices at O'Reilly Software Architecture Conference NY
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.
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AWS Makes Serverless Application Repository Generally Available
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".
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AxonDB, a New Implementation of an Event Store
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.
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Retroactive and Future Events in an Event Sourced System
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.
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Evolving CQRS and Event Sourced Systems
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.
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Microsoft Announces General Availability of Azure Event Grid
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.
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Events Should Be a First-Class Tool for Developers
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.
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Event Sourcing in an Unreliable World
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.
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Jonas Bonér on How Events Are Reshaping Modern Systems
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.
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Designing Event Sourced Microservices
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.
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Vaughn Vernon Uses Reactive DDD to Model Uncertainty in Microservices
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.
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Event Architectures and Event Streaming
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.