Cache Fallbacks & Circuit Breakers
Implement fault-tolerant caching by designing fallbacks and using circuit breakers to prevent cache failures from impacting the origin.
Resilient Caching: An Overview
Caching dramatically improves application performance and scalability. But what if your cache itself fails? A truly robust system needs to handle these failures gracefully.
Resilient caching is about designing your systems to remain stable and responsive even when cache systems encounter issues or become unavailable.
The Problem: Cache Failure
When a cache fails, it can lead to serious problems for your backend services. Without the cache to absorb requests, all traffic might suddenly hit your origin server or database directly.
- Cache Stampede: Many requests bypass the cache simultaneously.
- Origin Overload: The database or API struggles to handle the sudden surge in traffic.
- Cascading Failures: Overloaded origins can fail, leading to more system instability.
All lessons in this course
- Cache Fallbacks & Circuit Breakers
- Security Best Practices for Caches
- Future Trends in Caching
- Cache Poisoning & Defending the Cache Layer