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How to Reduce Cloud Cost by 99% for EDA Kafka Applications


While the cloud offers great convenience and flexibility, the operational cost for applications deployed in the cloud can sometimes be significant. This article shows a way to substantially reduce operating costs in latency-sensitive Event-Driven Architecture (EDA) Java applications by migrating from Kafka to Chronicle Queue open-source, a more resource-efficient and lower-latency queue implementation. What is EDA? An EDA application is ...

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Humans Are A Crucial Element Of Testing

Automation testing, artificial intelligence in testing, machine learning … Technology advancements have always instilled a small fear among humans. On one side, it accelerates the work and makes things easier, but on the other side, there is a misconception that technology alone is enough to run the business. So, will technology replace humans? Short answer – No. Let us dive ...

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Portfolio Architecture Examples – Automation Collection

For a few years now we’ve been working on a project we have named Portfolio Architectures. These are based on selecting a specific use case we are seeing used in the real world by customers and then finding implementations of that case using three or more products from the Red Hat portfolio. Figure 1: The portfolio architecture process This basic premise ...

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Fixing the Spring Web error: Expected lookupPath in request attribute “org.springframework.web.util.UrlPathHelper.PATH”

The other day I was upgrading my Spring Boot app from 2.3.1 to 2.6.6 to address the recent Spring vulnerability. This upgraded the dependent Spring libraries from 5.2.7 to 5.3.18. At start-up my application dynamically adds some REST endpoints by adding new RequestMappingInfo objects to the RequestMappingHandlerMapping bean already registered in the application context: ApplicationContext ctx = event.getApplicationContext(); RequestMappingHandlerMapping requestMappingHandlerMapping ...

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Kubernetes Quick Debugging Pod

When working with Kubernetes, it is not rare to need to access a Kubernetes internal resource. While you can bridge a lot of things, you can also need to run an image from Kubernetes environment/network/…​ to reproduce an issue and connect faster (bridges can be slow if done until your computer, in particular over a VPN). To solve that the ...

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Workflows Template: Create a Report with Google Sheets

Workflows templates are out-of-the-box flows and automations that you can add and start using right away. Each template provides a specific and real world solution. In this blog post you will learn about the Creates a Report with Google Sheets template. Why it’s important Many organizations have custom, org-specific needs to report on particular lifecycle events and share that data ...

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I am currently getting back to coding in Java + Spring after about 8 years. In the last 8 years, the time I spent on coding has gone significantly as I am now into leadership roles that take me away from writing code. Having said that, I need to understand some level of coding, especially in the Java world, as ...

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Learn the Basics of Coding & Technology

Keep Up with Current Technology Trends & Learn the Basics of Front-End Web Development with This 12-Week Practical Course Hey fellow geeks, This week, on our JCG Deals store, we have another extreme offer. We are offering a massive 98% off on Learn the Basics of Coding & Technology. Get it now with only $20 instead of the original price ...

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Docs as Code is not enough

Docs as Code It is the first step to the right direction The approach to treating your documentation the same way as program code is a step in the right direction, but it is far from state-of-the-art. The practice is detailed on many websites that advocate the use of docs-as-code (DAC). For example the Write the Docs community has a ...

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