Understanding Resiliency in Applications & Services: What It Is and How to Build It
Updated: Feb 14
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Businesses and organizations in today's digital world rely significantly on technology to keep their operations running properly. It is vital to make sure that apps and services are resilient given the growing relevance of technology.
Applications and services that are resilient are able to bounce back from setbacks, adjust to shifting situations, and carry on offering services to users despite challenging circumstances. In this blog, we will explore the concept of resiliency and its significance in ensuring the success and longevity of applications and services in the tech-driven world.
Let's dive right in -
What Are the Most Common Aspects of Application/Service Resiliency?
How to Implement Application/Service Resiliency at the Design Phase
What Advantages Do Highly Resilient Applications or Services Offer?
Avoid These Common Mistakes When Creating a Resilient System
Introduction: Defining Resiliency for Applications & Services
Resiliency is an essential factor when it comes to applications and services. Resiliency is a term that is often used in the context of computer systems, and it refers to the ability of a system to continue functioning despite the occurrence of unexpected events or failures. In other words, resiliency is the system's ability to maintain its performance and avoid downtime in the face of adverse conditions or issues.
It is a measure of how well an application or service can continue to function in the event of failures or disruptions. A resilient application has a higher uptime resulting in the best user experience.
A crucial element of the resilience of applications and services is high availability. Organizations can guarantee that their applications are always available even in the event of disruption or failure by building their apps and services with resiliency in mind. In this manner, businesses can ensure that their customers will always be able to access their services without interruption.
What Are the Most Common Aspects of Application/Service Resiliency?
Some of the most common features of application/service resiliency are fault tolerance, disaster recovery planning, elasticity, and scalability.
A system with fault tolerance can function even when some of its components fail.
Planning for disaster recovery helps applications in getting ready for unforeseen emergencies.
Elasticity and scalability allow applications to adjust resources according to changing workloads and user demands.
Organizations should make sure that their apps and services are resilient enough to manage any unforeseen disasters or disruptions by putting these components in place.
How to Implement Application/Service Resiliency at the Design Phase
Implementing resiliency during the design phase can help to minimize downtime and ensure that users have access to the service without interruption. A system can become resilient through a variety of strategies. Important ones among them are :
Redundancy: Implementing redundancy is one of the most popular methods for achieving resilience. This includes setting up multiple copies of essential system components so that, in the event of a failure, the others will take over. For example, having multiple servers in a load-balanced configuration provides a level of redundancy that helps ensure high availability.
Load Balancing: Another tactic for achieving resilience is load balancing, which helps distribute traffic equally among several servers, lowering the possibility of one server being overloaded and failing.
Monitoring and Alerting: Being able to keep an eye out for problems and failures in the system and being informed when they do is essential to building resilience. This enables system administrators to act swiftly in response to problems and stop downtime.
Disaster Recovery Planning: Disaster recovery planning is a crucial component of resiliency since it aids organizations in preventing and responding to unforeseen catastrophes like hardware failures, cyberattacks, and other failures. This can include installing b