How Laravel Apps Can Survive Redis Outages Using Circuit Breaker Pattern

A Redis cache outage caused a Laravel application to crash with 500 errors during a server migration, exposing how the framework assumes cache availability by default. A basic try-catch workaround can prevent crashes but still forces requests to wait for Redis connection timeouts, adding noticeable latency. The Circuit Breaker pattern offers a cleaner solution by tracking failure rates and automatically bypassing the cache once a failure threshold is reached, routing requests directly to the database instead. The open-source PHP library Ganesha, using an APCu adapter to avoid circular dependency, can implement this pattern without custom logic. After a cooldown period, the circuit enters a half-open state to test Redis recovery before resuming normal cache operations.