itsual Chaos Engineering
Overview
Chaos engineering is the disciplined practice of experimenting on a system to build confidence in its ability to withstand turbulent conditions.
When to Use
- After basic monitoring and resilience patterns are in place
- Before or after major architectural changes
- To validate timeouts, retries, fallbacks, and redundancy
Process
- Define steady-state behavior (what “healthy” looks like)
- Hypothesize how the system will respond to a failure
- Inject a realistic failure in a controlled way
- Observe and compare to the hypothesis
- Improve the system and the controls based on findings
Principles
- Start small and in non-production or limited blast-radius environments
- Automate experiments where possible
- Always have abort conditions and clear ownership
- Focus on learning, not on causing outages
Verification
- Resilience mechanisms behave as expected under failure
- Gaps discovered are turned into concrete improvements
- Experiments are repeatable and safe