Q:

Difference between Ribbon circuit breaker and Hystrix

I'm giving a try to Spring Cloud and Spring Boot. It uses Netflix OSS Applications, among them there are Ribbon and Hystrix. 
Ribbon is a load balancer and comes with some features, one of them is a circuit breaker. 
Hystrix is a circuit breaker application.
I don't know the difference between them both. Why use Hystrix if Ribbon already comes with a circuit breaker feature. 
Can I use both applications in the same connector?

A:

I'm not aware of any circuit breaker in ribbon except integration with Hystrix. We recommend using both, ribbon for the load balancer and hystrix for the circuit breaker.

