September 2020
Intermediate to advanced
314 pages
8h 22m
English
Content preview from SRE with Java Microservices
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Chapter 1. The Application Platform
Martin Fowler and James Lewis, who initially proposed the term microservices, define the architecture in their seminal blog post as:
…a particular way of designing software applications as suites of independently deployable services. While there is no precise definition of this architectural style, there are certain common characteristics around organization around business capability, automated deployment, intelligence in the endpoints, and decentralized control of languages and data.
Adopting microservices promises to accelerate software development by separating applications into independently developed and deployed components produced by independent teams. It reduces the need to coordinate and plan large-scale software releases. Each microservice is built by an independent team to meet a specific business need (for internal or external customers). Microservices are deployed in a redundant, horizontally scaled way across different cloud resources and communicate with each other over the network using different protocols.
A number of challenges arise due to this architecture that haven’t been seen previously in monolithic applications. Monolithic applications used to be primarily deployed on the same server and infrequently released as a carefully choreographed event. The software release process was the main source of change and instability in the system. In microservices, communications and data transfer costs introduce additional latencies ...
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