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  • Apache Pekko: Simplifying Concurrent Development with the Actor Model

    Apache Pekko is an open-source framework designed to simplify the development of concurrent, distributed, resilient, and elastic applications. Leveraging the Actor Model, Pekko offers high-level abstractions for concurrency, allowing developers to focus on business logic rather than low-level implementation details.

  • Discord Scales to 1 Million+ Online MidJourney Users in a Single Server

    Discord optimized its platform to serve over one million online users in a single server while maintaining a responsive user experience. The company evolved the guild component, which is responsible for fanning out billions of message notifications, in a series of performance and scalability improvements supported by system observability and performance tuning.

  • Microsoft’s Distributed Application Framework Orleans Reaches Version 7

    Microsoft Orleans, a .NET framework for building scalable distributed cloud applications, has been updated for .NET 7 and released as Orleans 7.0.0 on November 8th, 2022. The improvements in this release include better performance, simplified development dependencies and simplified identification schema for the grains, a unit of execution in Orleans.

  • Lightbend Announces Akka Serverless Open Beta

    Lightbend today announced the launch of Akka Serverless open beta, with general availability later this year. Akka Serverless is a Platform-as-a-Service (PaaS) offering that aims at cloud-native application development. It is built on Lightbend's Akka Platform technology and delivered via a model similar to existing serverless offerings.

  • Vlingo Joins the Reactive Foundation

    Vlingo, creators of a platform designed to simplify building reactive systems using an actor model, has joined the Reactive Foundation. Launched in September, the Reactive Foundation was formed under the Linux Foundation to accelerate technologies for building the next generation of networked applications. Vlingo is a new charter member, joining Alibaba, Facebook, Lightbend, Netifi and Pivotal.

  • 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.

  • Designing Reactive Systems Using DDD, Event Storming and Actors

    Domain-driven design (DDD) is often used for finding boundaries (bounded contexts) around microservices. But everything in domain-driven design (DDD) is not good for microservice, Lutz Huehnken claimed in a presentation at microxchg 2018 in Berlin where he discussed how DDD, Event Storming and the Akka-based Lagom framework can be used to build reactive systems.

  • 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.

  • Focus on the Process, Not on Individual Microservices

    The key to success when working with a microservices based distributed system is to focus on the distributed process as a whole, not on the microservices themselves. The services are the least important part, Eric Ess claimed at the recent Microservices Conference in London, in his presentation on how to monitor distributed processes at

  • The Long History of Microservices

    Microservices has a very long history, not as short as many believe. Neither was SOA invented in the 90s. We have been working with the core ideas behind services for five decades, Greg Young explained at the recent Microservices Conference in London, during his presentation on working with microservices.

  • Vaughn Vernon on Microservices and Domain-Driven Design

    Although a monolith can be modeled in a respectable way, often they are turned into a big ball of mud. This is caused by multiple domain models becoming entangled within the monolith, and in Vaughn Vernon's experience this can happen within a few weeks or months, he claimed in a presentation at the Scala Days conference earlier this year.

  • Q&A on Akka.NET 1.1 with Aaron Stannard

    Akka.NET 1.1 was recently released, bringing new features and performance improvements. InfoQ reached out to Aaron Stannard, maintainer of, to learn more about Akka.Streams and Akka.Cluster. Stannard also explains how the roadmap is planned with regards to the JVM implementation of Akka.

  • Vaughn Vernon: Challenges in Software Development of Today

    Projects and development teams are struggling with poorly designed systems, with many developers dedicated to patching systems just to keep them alive. Largely the software development culture is broken, Vaughn Vernon claimed in his presentation at the Domain-Driven Design Europe conference earlier this year, talking about problems he has encountered but also about solutions to these problems.

  • A Whole System Based on Event Sourcing is an Anti-Pattern

    Command Query Responsibility Segregation (CQRS) was never meant to be the end goal of what we are trying to achieve, it is a stepping stone towards the ideas of Event sourcing, Greg Young stated in his presentation at the Domain-Driven Design Europe conference earlier this year. He noted though that just applying CQRS is still a valuable pattern.

  • Lagom, a New Microservices Framework

    Lightbend, the company behind Akka, has released an open source microservices framework, Lagom, built on their Reactive Platform; in particular, the Play Framework and the Akka family of products are used together with ConductR for deployment. By default, Lagom is message-driven and asynchronous, and uses distributed CQRS persistence patterns with event sourcing as the primary implementation.