Circuit Breaker — Protection Against Cascading Failures

mid10 min

Service A calls Service B through a Circuit Breaker. In the CLOSED state, all requests pass through transparently. The CB counts errors.

Why this way?

In normal mode, the CB is just a transparent proxy with minimal overhead.

Progress1 / 4

Service ACaller

Node.js

Circuit BreakerResilience4j

Service BDependency

Go

Fallback / CacheRedis

Redis

Press enter or space to select a node. You can then use the arrow keys to move the node around. Press delete to remove it and escape to cancel.

Press enter or space to select an edge. You can then press delete to remove it or escape to cancel.

CLOSED: 0 errors / 10 threshold

ArchCase

System Design