InfoQ Homepage Distributed Systems Content on InfoQ
-
Stefan Tilkov at microXchg Berlin: Microservice Patterns and Antipatterns
In his presentation at microXchg 2018 in Berlin, Stefan Tilkov explored patterns and antipatterns in microservice projects from his perspective, including Evolutionary Architecture, Decoupling Illusion, Distributed Monolith and Entity Service. He especially noted that some of the patterns he considers to be patterns, other people may see as antipatterns, and the other way around.
-
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.
-
QCon London: Ensuring Data Consistency in Distributed Systems Using CRDTs
Conflict-free Replicated Data Types (CRDTs) is a family of algorithms for ensuring strong eventual consistency in distributed systems without the use of a centralized server that now has been theoretically proven to work, Martin Kleppmann claimed in a presentation at QCon London 2018, where he explored algorithms allowing people to collaborate on shared documents.
-
The Future of Microservices and Distributed Systems: QCon London Microservices Panel Discussion
In the microservices panel at QCon London 2018, track host Sam Newman together with Susanne Kaiser, Guy Podjarny, Idit Levine and Mark Burgess, discussed how the service technology as we see it today will change, and how we will build systems in the future. They believe microservices will continue to exist but will evolve into becoming a base for other techniques like serverless architectures.
-
Entity Services is an Antipattern
In a microservice based architecture, it is important to keep the different services separated. Entity services is a common pattern now applied to microservices, but Michael Nygard claims that entity services is an anti-pattern that works against separation.
-
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.
-
Observability and the Monitoring of Cloud-Native Applications
Cindy Sridharan summarizes her thoughts on observability and its relevance in monitoring cloud native applications in her recent article. Observability is a philosophy that encompasses monitoring, log aggregation, metrics and distributed tracing to gain deeper, ad-hoc insights into a system.
-
About the SOA Heritage Impact on Microservices
The heritage from SOA impacts the approach and design of a microservices architecture, how we select technology, and also the organisational aspects, Tareq Abedrabbo claimed at the recent Microservices Conference µCon London 2017. One example from his experience is that many organisations still have a separation between enterprise architects and developers.
-
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.
-
Distributed Schedulers with Microservice Architectures
Martin Campbell, microservices scalability expert at DigitalOcean, talked about running a microservice based architecture with a distributed scheduler at MicroXchg Berlin 2017. He focused primarily on the problems encountered along the way, and the tradeoffs between offerings like Kubernetes, Nomad, and Mesos.
-
Process Managers in Event-Based Systems
Publishing events to notify about changes in a domain keeps different domains decoupled from each other, but if there really is a logical flow of events it becomes implicit and hard to follow. A better solution is to use a Process Manager to keep track of the overall process, Bernd Rücker stated in his presentation at this year’s DDD eXchange conference.
-
A Comparison of Mapping Approaches for Distributed Cloud Applications
An application map is a topology view of the components of a distributed application and the network or interprocess interactions between them. A recent article gives an overview of application mapping approaches adopted by various tools like AppDynamics, OpenTracing and Netsil.
-
FaunaDB: A New Distributed Database from the Team That Scaled Twitter
Former technical leaders from Twitter and Couchbase have created FaunaDB, a new general-purpose database.
-
Moving Deliveroo from a Monolith to a Distributed System
Deliveroo has grown dramatically the last years, both in terms of business and IT, and is facing a lot of technical challenges with its large monolithic application. The solution is to go distributed, but without microservices, Greg Beech noted in his presentation at the recent QCon London conference, describing their move from a monolith into a distributed system.
-
Enterprise Ethereum Alliance Releases Vision Paper
The newly formed Enterprise Ethereum Alliance has published a Vision Paper outlining “a vision for users and stakeholders to propose, implement, and integrate advances to the Ethereum protocol with support for Enterprise Ethereum protocols.” In this paper the EEA discusses many topics related to Pluggable Consensus, interoperability, Ethereum protocol updates, storage and performance.