A resilient application keeps processing data and doing transactions, even when one or more components of the application fail due to an internal or external reason. That is, when a software system is under attack, the system has to find a way out to survive or to come back to the original state quickly. Therefore, it is imperative that every complicated and mission-critical system has to be designed, developed, and deployed using the most applicable resiliency properties. In other words, a system that is not designed with resiliency as the core feature is bound to fail at some point. For the forthcoming IoT, blockchain, and AI-enabled digital transformation and intelligence era, resilient IT infrastructures, platforms, and software applications are the most important ingredients to attain the intended and envisaged success. Let's digress a bit and discuss why this is so.
Highly distributed environments pose new challenges—centralized computing...