Interactive Systems Explainers

Circuit Breaker Playground

See why failing fast can protect the rest of a system while an unstable service recovers.

Traffic6/sFailure rate8%Opens after failures5 in 5s

Key Observations

What to Notice

They sit between callers and an unhealthy service. When failures cluster, the breaker stops forwarding traffic.

Rejected requests finish quickly. The service gets quiet space instead of another pile of slow waiting work.

Without protection, traffic keeps entering a service that is already falling behind. Latency and failures feed each other.

Half-open lets a few test requests through. The breaker closes only after recovery looks steady.

Interactive Systems Explainers

Watch routing choices shape overload, queues, and recovery.

See why latency suddenly explodes when work piles up.

See how retries can amplify overload and collapse a system.

Add workers automatically when the queue grows, then watch the system catch up.

Watch synchronized cache misses overload a database, then tame them with protection.