InfoQ Homepage Event Driven Architecture Content on InfoQ
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AWS Step Functions Gains Callback Patterns to Resume Paused Workflows
Amazon Web Services (AWS) recently announced that AWS Step Functions supports callback patterns to "automate workflows for applications with human activities and custom integrations with third-party services". Workflow executions can now be paused until applications return a token via the Step Functions API, which obsoletes the previously required polling or other workarounds.
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Data Engineering in Badoo: Handling 20 Billion Events Per Day
Badoo is a dating social network that currently handles billions of events per day, explains Vladimir Kazanov, data platform engineering lead. At Skills Matter, he talked through some of the challenges of operating at this scale, and what tooling Badoo uses in order to process and report on this data.
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High Scalability Workflow Engine Zeebe is Production Ready
Zeebe is a workflow engine designed to meet the scalability requirements of high-performance applications running on cloud-native and event-driven architectures, and to support workflows that span multiple microservices in low latency, high-throughput scenarios. Zeebe 0.20.0 has just been released as a free community edition and is considered production ready.
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Amazon EventBridge – Event-Driven AWS Integration for SaaS Applications Now Generally Available
At the recent AWS Summit Event in New York, Amazon announced the general availability of Amazon EventBridge, a serverless event bus that allows AWS, Software-as-a-Service (SaaS), and custom applications to communicate with each other using events.
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Practical Domain-Driven Design with Events and Microservices - Indu Alagarsamy at QCon New York
Domain-driven design (DDD) concepts like Bounded Contexts and Messaging technologies can be used to build reliable systems that can scale with the business changes. Indu Alagarsamy recently spoke at QCon New York 2019 Conference about using the combination of well-defined bounded contexts and events to develop autonomous microservices that are flexible to adapt to the business changes.
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Mistakes and Recoveries When Building an Event Sourcing System
When Nat Pryce and his team started building a system based on an event sourced architecture, they made a couple of significant mistakes in the design, but managed to recover from these mistakes with an ease that surprised them. In a blog post, Pryce describes the mistakes they made and the factors that made it possible for them to refactor the architecture and recover from their mistakes.
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Open Source Messaging Software NATS Releases 2.0
Open source messaging software NATS 2.0 has been released and offers advanced security management, global disaster recovery, and improved performance at scale. NATS is a Cloud Native Computing Foundation project that provides messaging services for cloud native systems, IoT messaging, and microservices.
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Patterns in Distributed Systems
In a series of blog posts, Mathias Verraes describes patterns in distributed systems that he has encountered in his work and has found helpful. He currently describes 16 patterns in three areas: patterns for decoupling, general messaging patterns and event sourcing patterns. His goal is to identify, name and document the patterns together with the context in which they can be useful.
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Experience Building Distributed Systems and Microservices — Jeppe Cramon at Micro CPH
We must understand the business domain we are working in, identify the bounded contexts and the business capabilities, and design our services using this knowledge. In a presentation at Micro CPH, Jeppe Cramon talked about his experience working with distributed systems, microservices and the principles and patterns he sees as beneficial for successfully creating microservices based systems.
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Microsoft Evolves Azure Event Grid: New Telemetry Events, Advanced Filters, and Event Domains
In a recent blog post, Microsoft announced several new updates to its cloud service Azure Event Grid, ranging from new telemetry events from IoT Hub to the general availability of advanced filters and Event Domains.
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Amazon Managed Kafka Aims to Simplify Kafka Streaming Setup and Use
Introduced as a public preview at AWS re:invent 2018, Amazon Managed Streaming for Kafka (MSK) is now generally available. Amazon MSK aims to make it easy to build and run streaming applications based on Kafka.
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Experiences Going from Event-Driven to Event Sourcing: Fangel and Ingerslev at MicroCPH
At MicroCPH 2019, Thomas Bøgh Fangel and Emil Krog Ingerslev, both at Lunar Way, a fintech company, described how after building a monolithic Rails application they decided to migrate to an event-driven microservices architecture. During the migration they found some design issues and decided to move to event sourcing. In their presentation they discuss the problems and how they solved them.
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Microservices Framework Lagom 1.5 with Akka Management and Support for Kubernetes and OpenShift
Version 1.5 of the microservices framework Lagom comes with Akka Management, a set of tools for operating Akka powered applications, and support for deployment with Kubernetes or OpenShift. The recently released version 1.5 is built on Play 2.7.0, Alpakka Kafka 1.0 and Akka 2.5.22 and also adds support for Couchbase and for gRPC through Akka gRPC.
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Event Streams and Workflow Engines – Kafka and Zeebe
In a recent joint meeting in Amsterdam, Kai Waehner described features of Apache Kafka, a distributed streaming platform, and how it fits in an Event-Driven Architecture. Bernd Rücker described how workflow engines can handle complex business processes, and discussed how Zeebe, a new highly scalable workflow engine, can be used with Kafka.
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How the Sequence of Characters in a Name Can Predict Race and Ethnicity
Gaurav Sood, Principal Data Scientist at Microsoft, recently spoke at the AnacondaCon 2019 Conference on how to use the sequence of characters in a person's name to predict that person's race and ethnicity, using machine learning techniques.