๐ฅ๐ฒ๐๐ถ๐น๐ถ๐ฒ๐ป๐ฐ๐ ๐๐ป๐ด๐ถ๐ป๐ฒ๐ฒ๐ฟ๐ถ๐ป๐ด ๐๐๐ค๐
Frequently Asked Questions
Everything you need to know about Resilience Engineering โ The What, Why, When, and How.
๐๐ฟ๐ฒ๐พ๐๐ฒ๐ป๐๐น๐ ๐๐๐ธ๐ฒ๐ฑ ๐ค๐๐ฒ๐๐๐ถ๐ผ๐ป๐
๐ช๐ต๐ฎ๐ ๐ถ๐ ๐ฅ๐ฒ๐๐ถ๐น๐ถ๐ฒ๐ป๐ฐ๐ฒ ๐๐ป๐ด๐ถ๐ป๐ฒ๐ฒ๐ฟ๐ถ๐ป๐ด?
Resiliency Engineering is the practice of designing and building systems to achieve resiliencyโensuring they can handle failures, adapt to disruptions, and recover gracefully without major downtime.๐๐ ๐ฅ๐ผ๐ฏ๐๐๐๐ป๐ฒ๐๐ ๐๐ต๐ฒ ๐๐ฎ๐บ๐ฒ ๐ฎ๐ ๐ฅ๐ฒ๐๐ถ๐น๐ถ๐ฒ๐ป๐ฐ๐?
No, robustness and resiliency are related but not the same. Robustness refers to a system's ability to continue functioning under stress or extreme conditions without failing. It's about withstanding challenges. Resiliency, on the other hand, focuses on how well a system can recover from failures or adapt to changes. While a robust system can handle stress, a resilient system can bounce back quickly after problems occur.๐๐ผ๐ ๐ถ๐ ๐ฐ๐ต๐ฎ๐ผ๐ ๐ฒ๐ป๐ด๐ถ๐ป๐ฒ๐ฒ๐ฟ๐ถ๐ป๐ด ๐ฑ๐ถ๐ณ๐ณ๐ฒ๐ฟ๐ฒ๐ป๐ ๐ณ๐ฟ๐ผ๐บ ๐ฟ๐ฒ๐๐ถ๐น๐ถ๐ฒ๐ป๐ฐ๐ฒ ๐ฒ๐ป๐ด๐ถ๐ป๐ฒ๐ฒ๐ฟ๐ถ๐ป๐ด?
Chaos engineering focuses on intentionally breaking systems in a controlled way to uncover weaknesses before real failures happen. Resilience engineering is broader, aiming to design, build, and maintain systems that can withstand and recover from failures. Chaos engineering is a testing approach, while resilience engineering is a system-wide strategy for reliability.๐ช๐ต๐ฎ๐ ๐ถ๐ ๐๐ต๐ฒ ๐ถ๐ฑ๐ฒ๐ฎ๐น ๐ฎ๐ฝ๐ฝ๐ฟ๐ผ๐ฎ๐ฐ๐ต ๐๐ผ ๐ฟ๐ฒ๐๐ถ๐น๐ถ๐ฒ๐ป๐ฐ๐ฒ ๐๐ฒ๐๐๐ถ๐ป๐ด?
To build effective resilience tests, teams need to understand the systemโs architecture, design, and infrastructure. Key strategies include: conducting failure mode analysis, validating application and data resiliency, configuring health probes, conducting fault injection tests for each application, checking network availability, and performing critical tests in production.๐๐ผ๐ ๐ฑ๐ผ ๐ฟ๐ฒ๐๐ถ๐น๐ถ๐ฒ๐ป๐ฐ๐ฒ ๐๐๐ฟ๐ฎ๐๐ฒ๐ด๐ถ๐ฒ๐ ๐ต๐ฒ๐น๐ฝ ๐ฐ๐ผ๐บ๐ฏ๐ฎ๐ ๐๐ผ๐บ๐ฒ ๐ผ๐ณ ๐๐ต๐ฒ ๐๐๐๐๐ฒ๐บ ๐ณ๐ฎ๐ถ๐น๐๐ฟ๐ฒ๐?
Resilience strategies help systems withstand failures by incorporating fault tolerance, graceful degradation, and automated recovery mechanisms. Techniques like circuit breakers, retry policies, and distributed redundancy prevent cascading failures and ensure continued operation. By leveraging observability, self-healing, and chaos engineering, systems proactively detect, mitigate, and recover from failures with minimal impact.๐๐ผ๐ ๐๐ผ ๐๐ฒ๐๐ ๐๐ต๐ฒ ๐ฟ๐ฒ๐๐ถ๐น๐ถ๐ฒ๐ป๐ฐ๐ ๐ผ๐ณ ๐๐๐๐๐ฒ๐บ๐ ๐ฎ๐ฐ๐ฟ๐ผ๐๐ ๐๐ต๐ฒ ๐ฒ๐ป๐๐ฒ๐ฟ๐ฝ๐ฟ๐ถ๐๐ฒ?
Test system resiliency by simulating failures using chaos engineering and fault injection. Perform load testing, disaster recovery drills, and failover tests to check stability. Use monitoring, alerts, and automated recovery to detect and fix issues quickly.๐๐ผ๐ ๐๐ผ ๐๐ฒ๐๐ฒ๐ฟ๐ฎ๐ด๐ฒ ๐ฅ๐ฒ๐๐ถ๐น๐ถ๐ฒ๐ป๐ฐ๐ฒ ๐๐ป๐ด๐ถ๐ป๐ฒ๐ฒ๐ฟ๐ถ๐ป๐ด ๐ถ๐ป ๐๐ฎ๐ถ๐น๐ ๐ฃ๐ฟ๐ฎ๐ฐ๐๐ถ๐ฐ๐ฒ?
Leverage resilience engineering in daily practice by designing fault-tolerant systems with redundancy and failover mechanisms. Regularly test failures using chaos engineering and implement automated recovery strategies like retries and self-healing. Monitor systems with observability tools to detect issues early and ensure continuous improvement.๐๐๐๐ถ๐ป๐ฒ๐๐ ๐๐ผ๐ป๐๐ถ๐ป๐๐ถ๐๐, ๐๐ถ๐๐ฎ๐๐๐ฒ๐ฟ ๐ฅ๐ฒ๐ฐ๐ผ๐๐ฒ๐ฟ๐, ๐ฎ๐ป๐ฑ ๐ฅ๐ฒ๐๐ถ๐น๐ถ๐ฒ๐ป๐ฐ๐ฒ ๐๐ป๐ด๐ถ๐ป๐ฒ๐ฒ๐ฟ๐ถ๐ป๐ด - ๐ช๐ต๐ฎ๐โ๐ ๐๐ต๐ฒ ๐ฑ๐ถ๐ณ๐ณ๐ฒ๐ฟ๐ฒ๐ป๐ฐ๐ฒ?
Business Continuity ensures operations run smoothly during disruptions. Disaster Recovery focuses on restoring systems after failures. Resilience Engineering designs systems to withstand and recover from failures automatically.๐๐ผ๐ ๐ฑ๐ผ ๐๐ผ๐ ๐บ๐ฒ๐ฎ๐๐๐ฟ๐ฒ ๐๐ต๐ฒ ๐ฟ๐ฒ๐๐ถ๐น๐ถ๐ฒ๐ป๐ฐ๐ ๐ผ๐ณ ๐ฎ ๐๐๐๐๐ฒ๐บ?
To measure a system's resilience, look at how quickly it recovers from failures and how often failures happen. We also check how well it handles errors and if it has backup systems in place. Monitoring system performance and stability during issues helps track resilience. We can also simulate failures to test if the system can recover smoothly.๐๐๐ป'๐ ๐ฟ๐ฒ๐๐ถ๐น๐ถ๐ฒ๐ป๐ฐ๐ ๐ฒ๐ป๐ด๐ถ๐ป๐ฒ๐ฒ๐ฟ๐ถ๐ป๐ด ๐ฎ๐ป ๐ผ๐ฟ๐ด๐ฎ๐ป๐ถ๐๐ฎ๐๐ถ๐ผ๐ป๐ฎ๐น ๐บ๐ฎ๐๐๐ฒ๐ฟ?
Resilience engineering is both technical and organizational. Itโs not just about building systems that can recover from failures, but also about creating a culture that supports reliability. Teams must work together to make sure systems can handle problems when they happen.๐ช๐ต๐ถ๐ฐ๐ต ๐ณ๐ฟ๐ฎ๐บ๐ฒ๐๐ผ๐ฟ๐ธ ๐ฐ๐ฎ๐ป ๐ต๐ฒ๐น๐ฝ ๐ถ๐บ๐ฝ๐น๐ฒ๐บ๐ฒ๐ป๐ ๐ฟ๐ฒ๐๐ถ๐น๐ถ๐ฒ๐ป๐ฐ๐ฒ ๐ฒ๐ป๐ด๐ถ๐ป๐ฒ๐ฒ๐ฟ๐ถ๐ป๐ด?
Frameworks like Hystrix and Resilience4j are popular choices for implementing resilience engineering. These frameworks offer tools like circuit breakers, retry mechanisms, and fault tolerance to ensure that systems continue functioning despite failures. Chaos Monkey, part of the Netflix, helps by simulating real-world failures and testing system resilience under adverse conditions. Kubernetes and Istio also support resilience by providing self-healing capabilities and traffic management for distributed systems, enabling better fault isolation and recovery. These frameworks collectively help to build robust, fault-tolerant systems.๐๐ป๐๐ฝ๐ถ๐ฟ๐ฎ๐๐ถ๐ผ๐ป๐ ๐ฎ๐ป๐ฑ ๐ฅ๐ฒ๐ณ๐ฒ๐ฟ๐ฒ๐ป๐ฐ๐ฒ๐
Where do I start? by Resilience Engineering Association
Frequently Asked Questions from Nagarro