Glossary
Circuit Breaker Pattern
An error-handling mechanism that automatically disables failing service connections after threshold violations, preventing cascading failures and resource waste.
What is Circuit Breaker Pattern?
Circuit breakers monitor failure rates and latency for service calls. When failures exceed thresholds, the breaker "opens," immediately failing requests without attempting calls, giving failing services time to recover. After a timeout, the breaker enters "half-open" state, allowing test requests to verify recovery before fully closing.
This pattern prevents thread exhaustion from waiting on failing services, reduces load on degraded systems, and provides graceful degradation. Configuration requires tuning failure thresholds, timeout durations, and recovery validation logic.
Example
After 5 consecutive failures calling a payment API, an agent's circuit breaker opens, immediately returning errors for 30 seconds without calling the API, then allowing one test call to check if service has recovered.
How Signet addresses this
Signet monitors circuit breaker activations as reliability signals, with frequent breaker openings indicating integration stability issues. Agents can configure breaker policies and track recovery patterns.
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