Reactive programming can be used to solve a lot of different use cases. Forinstance, reactive programming can be really helpful for cases where timing is an issue. An example of such a case is retry logic with delay or backoff functionality. Let’s have a look at some different implementations using Project Reactor (https://projectreactor.io) for Java. […]
Leaving a Java legacy behind
As with a house, software applications require maintenance too. Otherwise, you risk the digital equivalent of rot: bit-rot. Often, the maintenance is done like with a house: Superficially to make it look nice again with a new look-and-feel, a new colour scheme (a paint job) and a few new stock photos. But every once in a […]
3 reasons why your Big Bang legacy replacement will most likely fail miserably!
This morning I was listening to the radio and first, there was an item about a large government organization that had spent 4 years and a boatload of money on a Big Bang legacy replacement. The project was canceled and had been a complete waste of time, energy and money. Right after this item, there […]
Centralized metrics with Stackdriver Prometheus Exporter
Google does not currently charge for monitoring data when it comes to GCP metrics. Therefore, if you want to monitor operations of Google Cloud Platform (GCP) services, such as: Compute Engine, Cloud SQL, Cloud Dataflow and Cloud Pub/Sub, using Google’s Cloud Monitoring service – Stackdriver – is a perfect choice…
CQRS replay performance tuning
We, as experienced users and consultants for Axon, encourage developers that work with Axon Framework or are considering working with it, to read the following blog by Frans van Buul from AxonIQ. This blog explains in a clear and structured way, how to avoid the pitfalls that can happen when replaying past events after changing/adding read models. […]
Managing Spring Boot Microservices with Spring Boot Admin on Kubernetes
In this blog: Prerequisites Introduction The top cool features we like and use most The service journal Overall View, what is deployed Change LOG levels DB migrations Creating an SBA Application Dependency configuration Spring Boot Admin Spring Boot Application Configuration of the Admin Application Summing up Running SBA on K8s Conclusion References Prerequisites Knowledge of: […]
Chief Subtitles
He looked at me with complete amazement. Bewildered. After doing the track for Business Process Management with me as lector he was used to me being a bit weird. But this one caught him off-guard. We were discussing his BPM thesis today. Good work, ticked all the boxes for the HU University (interesting set of […]
Dockerising your legacy integration tests
As most of you will know, every now and then you can expect the question ‘Can you help fix something on this ancient project?’ According to the Universal Software Ageing table, that means anything from last month to much, much older. I got such a question recently, being in-between projects, and this project fell squarely into […]
Digital Off-The-Roadmap
“What are you thinking about?” Well, nothing really.Just tell me what you feel! Uh, uh, nothing at the moment. You got to feel something! Listen Woman: You have to go to mindfulness training, you do your yoga class, you do all the Zen stuff. And without doing all of that, I can just just sit […]
The potential of Machine Learning with the Axon Framework
Machine Learning creates lots of value in the business processes, if and when applied properly and the right data is available. These days a lot of data is already held within organisations. It is common to see this data unused, with possibilities and insights unseen. While it can be due to limitations of modelling and […]