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By how much depends on the storage layer used and generally available resources. The largest factors in this regard are the type of cache, for example, disk-based vs. memory-based and local vs. network.
== Different States of Circuit Breaker ==
* Closed
* Open
* Half Open
=== Closed State ===
When everything is normal, the circuit breakers remained closed, and all the request passes through to the services as shown below if the number of failures increases beyond the threshold the circuit breaker trips and goes into an open state.
[[File:Circuit Breaker -Closed state.png|thumb|Circuit Breaker states]]
=== Open State ===
In this state circuit breaker returns an error immediately without even invoking the services. The Circuit breakers move into the half-open state after a timeout period elapses. Usually, it will have a monitoring system where the timeout will be specified.
[[File:Circuit Breaker -Openstate.png|thumb|Circuit Breaker states]]
=== Half Open State ===
In this state, the circuit breaker allows a limited number of requests from the Microservice to passthrough and invoke the operation. If the requests are successful, then the circuit breaker will go to the closed state. However, if the requests continue to fail, then it goes back to Open state.
[[File:Circuit Breaker -Half Open state.png|thumb|Circuit Breaker states]]
==Example implementation==
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*[http://www.javaworld.com/article/2824163/application-performance/stability-patterns-applied-in-a-restful-architecture.html Stability patterns applied in a RESTful architecture]
*https://martinfowler.com/bliki/CircuitBreaker.html
*[https://microservicesdev.com/circuit-breaker-pattern Circuit Break Pattern States]
[[Category:Software design patterns]]
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