InfoQ Homepage Distributed Systems Content on InfoQ
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Extending the Reach of SQL to IoT Microcontrollers, ITTIA and Cypress Release SDK
In a recent press release, ITTIA, a maker of embedded database software for Internet of Things (IoT) devices, and Cypress Semiconductor Corp, announced a collaborative IoT device and data management capability. The new capability integrates SQL into the WICED SDK and unlocks the power of flash media on Cypress wireless microcontrollers (MCU).
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Minimizing Backend Complexity with Dark: A New Language with Integrated Editor and Infrastructure
Dark aims to simplify the development of backends by minimizing complexity. Dark is a programming language with an integrated editor and infrastructure for developing and delivering backend applications.
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Improving Blockchain Performance Off-Chain, Hyperledger Announces Avalon
In a recent blog post, the Hyperledger project announced a new project, called Hyperledger Avalon, that addresses some of the scalability and privacy challenges that are currently associated with many blockchain projects. The projects seek to address these scalability and privacy challenges through the use of trusted off-chain processing, while ensuring the transactions are secure and resilient.
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Sense and Nonsense in Event Thinking and Microservices
Modularity in the systems we are building is very important, but there are anti-modularity forces that we must deal with to be able to achieve this modularity. In a presentation at the recent Event-driven Microservices Conference, held by AxonIQ, Allard Buijze shared his thoughts and experience building systems based on DDD, CQRS, microservices and event sourcing.
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Day Two Problems When Using CQRS and Event Sourcing
There are a lot of good reasons for building a CQRS and event-sourcing based system, but there are also problems that appear only after an application is in production. In a presentation at the recent Event-driven Microservices Conference held by AxonIQ, Joris Kuipers shared his experience running and evolving CQRS and event sourced applications in production.
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Reactive Foundation Launched under the Linux Foundation
The Linux Foundation announced the launch of the Reactive Foundation, a community of leaders established to accelerate technologies for building the next generation of networked applications. The foundation is made up of Alibaba, Facebook, Lightbend, Netifi and Pivotal as initial members, and includes the successful open source Reactive Streams and RSocket specifications.
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Reasons for Cancelling a Move to Microservices
During a period in which Steven Lemon and his team had less features to implement, the technical leadership at the company decided to move their existing monolith into a microservices architecture. After a month of preparation, they realized that microservices would be hurting their development process. They decided to stay with the monolith and Lemon recently wrote a case study of their findings.
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Characteristics of Serverless Architecture
Too much of the current literature dealing with serverless architecture is driven by cloud providers and focuses only on the benefits, Wisen Tanasa writes in a recent blog post. When a new technology emerges, it's important to understand the implications of adopting it, and Tanasa therefore tries to give a better, more objective understanding of the traits of serverless architecture.
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Going from Microservices to Serverless: Phil Calçado at QCon New York
At several points throuhgout his career, Phil Calçado, who has experience working with SoundCloud, Meetup and SeatGeek, has worked on transitioning monoliths to a microservices architecture. Recently, the challenge has instead been migrating to serverless. In a presentation at the recent QCon New York conference, he talked about his experience combining the serverless concept with microservices.
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Microsoft, Salesforce and the Ethereum Foundation Join Open-Source Hyperledger Blockchain Project
In a recent press release, Hyperledger, an open-source blockchain and distributed ledger project, announced eight new members have joined their consortium including Microsoft, Salesforce and the Ethereum Foundation. These organizations join established members like Airbus, Cisco, IBM and Intel.
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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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API Strategies at eBay
After working with improperly versioned SOAP-based APIs for many years, eBay decided to move to new RESTful APIs with semantic versioning and a deprecation standard. Focus is on extensibility and adaptability to make it easier for developers to create new applications that utilize eBay’s APIs. In a blog post, Tanya Vlahovic describes the concepts and how they are implemented in their APIs.
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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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Defining Bounded Contexts — Eric Evans at DDD Europe
A bounded context is a defined part of software where particular terms and rules apply in a consistent way, Eric Evans explained in his keynote at DDD Europe earlier this year; it should have a refined model and a language with unambiguous definitions. In a recently published presentation, he describes different kinds of bounded contexts, including some that involve microservices.
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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.