InfoQ Homepage Architecture & Design Content on InfoQ
-
/articles/test-java-microservices-service-mesh/en/smallimage/Sebastian-Daschner-test-java-microservices-service-mesh-logo-1532899748646.jpeg)
Improving Testability of Java Microservices with Container Orchestration and a Service Mesh
In enterprise test scenarios, software needs to be tested in the same way as it will run in production. This article provides a practical demonstration of testing Java microservices that are running on Kubernetes with the Istio service mesh. K8s service abstractions enable mocking, and Istio enables us to re-route traffic and inject faulty responses or delays to verify our services' resiliency.
-
/articles/contract-testing-spring-cloud-contract/en/smallimage/testing-spring-cloud-contract-logo-1532763074334.jpg)
How Contract Tests Improve the Quality of Your Distributed Systems
Catching bugs at the end of a development cycle is costly, but how do you incrementally test complex distributed systems? In this article, Marcin Grzejszczak looks at an integration testing approach for communication between components. He reviews contract testing, and Spring Cloud Contract, as one solution.
-
/articles/ballerina-api-gateway/en/smallimage/ballerina-1531766744426.jpg)
Building an API Gateway with the Ballerina Programming Language
An API Gateway is a layer in an architecture pattern that allows the business API to focus on the business functionality while taking care of the request dispatching, policy enforcement, protocol translations and analytics. This article is about how we built an API Gateway in Ballerina for the WSO2 API Manager.
-
/articles/Graal-Java-JIT-Compiler/en/smallimage/Getting-to-Know-Graal-the-New-Java-JIT-Compiler-logo-1531559646800.jpg)
Getting to Know Graal, the New Java JIT Compiler
Oracle have released Graal, a new JIT compiler for Java. For Java developers, Graal can be thought of as several separate but connected projects - it is a new JIT compiler for HotSpot, and also a new polyglot virtual machine, GraalVM. The initial release includes support for JVM bytecode and JavaScript with LLVM, Ruby and R in beta.
-
/articles/quantum-computing-applications-three/en/smallimage/quantum-computation-1531439074361.jpg)
Cats, Qubits, and Teleportation: The Spooky World of Quantum Computation Applications (Part 3)
The same factors which make quantum theory so startling also make quantum computers very difficult to implement in practice: quantum phenomena don't manifest themselves in everyday life. Given the cost, size, and physical delicacy of quantum computers, they're a perfect fit for the 'pay per use' cloud consumption model.
-
/articles/adopting-new-tech-service-mesh/en/smallimage/adopting-new-tech-service-mesh-logo-1531154551611.jpg)
How to Adopt a New Technology: Advice from Buoyant on Utilising a Service Mesh
When adding a new technology like a service mesh into your production stack, be mindful of the impact this will have on you and your colleagues. Be clear about what problem you are solving, and define appropriate acceptance criteria. Run experiments that attempt to show how a service mesh can make life better for the various stakeholders.
-
/articles/quantum-computing-algoritms-two/en/smallimage/logo-quantum-computing-algoritms-1530726495601.jpg)
Cats, Qubits, and Teleportation: The Spooky World of Quantum Algorithms (Part 2)
Quantum information theory really took off once people noticed that the computational complexity of quantum systems was actually a computational capacity, which could be applied to other problems, such as factorization, which is used within public key cryptography. This article explores quantum algorithms and their applicability.
-
/articles/data-ethics/en/smallimage/tech-ethics-1530564091812.jpeg)
Data Citizens: Why We All Care about Data Ethics
Data citizens are impacted by the models, methods, and algorithms created by data scientists, but they have limited agency to affect the tools which are acting on them.
-
/articles/quantum-computing-intro-one/en/smallimage/quantum-computing-part-1-logo-small-1536232793038.jpg)
Cats, Qubits, and Teleportation: The Spooky World of Quantum Computation (Part One)
By the time most of us reach adulthood, we know a few basic truths: cats cannot be simultaneously alive and dead; objects at opposite ends of the universe can’t affect each other; and computers operate on 0s and 1s, and that’s the most fundamental unit of information. The premise of quantum computation is that these truths are partially wrong.
-
/articles/service-mesh-promise-peril/en/smallimage/promisses-1529964874364.jpeg)
Service Mesh: Promise or Peril?
Service meshes such as Istio, Linkerd, and Cilium are gaining increased visibility as companies adopt microservice architectures. The arguments for a service mesh are compelling: full-stack observability, transparent security, systems resilience, and more. But is a service mesh really the right solution for you? This article examines when a service mesh makes sense and when it might not.
-
/articles/C4-architecture-model/en/smallimage/c4Model_Icon_sm-1529798065695.jpg)
The C4 Model for Software Architecture
Software architecture diagrams can be a very useful communication tool, but many teams have scaled back on the creation of diagrams, and when diagrams are created, they are often confusing and unclear. The C4 model consists of a hierarchical set of software architecture diagrams for context, containers, components, and code.
-
/articles/soa-microservices-journey/en/smallimage/SOA-to-Microservices-1529490054149.jpeg)
The SOA Journey: from Understanding Business to Agile Architecture
If your monolith is tightly coupled and not cohesive, you could split it in order for a business to be more agile. There are a lot of wrong ways that you can do that. They result in the same tightly coupled and non-cohesive monolith, but which is distributed across a network. This article examines how you can align your technical services and business-capabilities.