<ul data-eligibleForWebStory="false"><li>A truly fault-tolerant system is one that expects failures and gracefully recovers while maintaining a seamless user experience.</li><li>Key steps to achieve fault tolerance include eliminating single points of failure, using circuit breakers to prevent cascading failures, enabling self-healing mechanisms, ensuring idempotency to avoid duplicate side effects, and implementing graceful degradation strategies.</li><li>Monitoring relevant metrics and alerting actionable events, testing for resilience under stress conditions, preparing for regional outages, and fostering a culture that anticipates failures are vital components of building a fault-tolerant system.</li><li>By following guidelines such as removing SPOFs, utilizing circuit breakers, supporting self-healing processes, maintaining idempotency, handling graceful degradation, and promoting a resilient culture, a truly fault-tolerant system can be developed.</li></ul>

What Makes a System Truly Fault-Tolerant?

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