title: how to use hystrix to monitoring all microservices
body: <p>I'm new on microservices and I have seen a tutorial(from udemy) where shows technologies like eureka, feign,spring cloud config,hystrix and zuul, but after make some examples I don't understand very well how hystrix monitor and zuul works, In the examples I noticed that hystrix is used by a main application that it access to microservices and in that way I can monitoring my microservices, but with zuul I noticed that it works like a proxy but this is calling the same microservices like the other application, so my question is how can I monitoring the microservices with hystrix if are called by zuul and by the another application, am I need two hystrix monitor or can I have one general?</p>
  
  <p>Thanks in advance.</p>