In essence, what these fallacies mean is that a network call is slower, less secure, less reliable, and harder to fix than invoking a Java method call or a C procedure. When building distributed applications, it is important to consider and understand the eight fallacies of distributed computing. This makes cloud-native applications implicitly distributed applications, and while distributed computing is nothing new, it does increase the need to understand the benefits and pitfalls of distributed computing. Most cloud-native architectures involve splitting an application into several discrete services that communicate over a network link rather than an in-process method invocation. One of the key changes in application design is the degree to which applications are distributed.
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The commoditization of compute resources that the cloud provides leads to a very different way of thinking about, planning for, and designing applications, and these differences significantly affect the application. Perhaps at its core, the promise of the cloud is being able to get compute resources on-demand, in minutes or seconds rather than days or weeks, and being charged based on incremental usage rather than upfront for potential usage – although, for many, the attraction is just no longer having to manage and maintain multiple data centers. A real-world example of microservices is Netflix. The Stock Trader application from Chapter 8, Building and Testing Cloud-Native Applications, is an example of such an application. In other words, a cloud-native application is one that has been specifically designed to take advantage of the capabilities provided by the cloud. The same is true of applications.Īn application designed to run in a traditional data center is not going to run well on the cloud compared to one that was designed specifically to take advantage of the cloud. You need vehicles that are designed for driving on a highway. No matter how much better a highway is as a road, there is a limit to how much a cart can transport and how quickly. By the end of this book, you will master MicroProfile's latest features and be able to build fast and efficient cloud-native applications.īack in 2010, Paul Freemantle wrote an early blog post about cloud-native ( ) and used the analogy of trying to drive a horse-drawn cart on a 6-lane highway.
#Cloud native java book how to#
The book demonstrates the complete process of development through to deployment and concludes by showing you how to monitor the application's performance in the cloud. You'll gradually advance to packaging and deploying the application. You'll start by learning how to develop a real-world stock trader application, and then move on to enhancing the application and adding day-2 operation considerations. Practical Cloud-Native Java Development with MicroProfile is a comprehensive guide that helps you explore the advanced features and use cases of a variety of Jakarta and MicroProfile specifications.
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As an open standard technology, MicroProfile helps improve application portability across all of MicroProfile's implementations.
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MicroProfile is one of the most popular frameworks for building cloud-native applications, and fits well with Kubernetes. To ensure that your application performs well in the cloud, you need to build an application that is cloud native. In this cloud-native era, most applications are deployed in a cloud environment that is public, private, or a combination of both.