chakra-coder/hystrixdemo-1

Sample project to demo the capabilities of Hystrix

Hystrix Samples

Start the applications in the following order:

• Run Eureka - not technically required, but avoids other applications from throwing errors on the console on not finding Eureka, the endpoint is at http://localhost:8761

  cd sample-eureka
  mvn spring-boot:run

• Start Hystrix Dashboard Application. This will be used for displaying the Hystrix command metrics, the endpoint is available at http://localhost:8080

  cd sample-hystrix-dashboard
  mvn spring-boot:run

• Start sample service, the endpoints is available at http://localhost:8889

  cd service1
  ./gradlew runApp

• Start client application, the endpoint is available at http://localhost:8888

  cd aggregate
  ./gradlew runApp

Endpoints

The following endpoints should be available demonstrating different Hystrix features, look at the Hystrix Dashboard at http://localhost:8080/hystrix.dashboard and use the Hystrix stream available at http://localhost:8888/hystrix.stream

1. http://localhost:8888/hello?greeting=World - Simple Hello World Hystrix Command

2. http://localhost:8888/helloObservable?greeting=World - Hello World Command using HystrixObservableCommand.

3. http://localhost:8888/fallback - Sample Fallback Example

4. http://localhost:8888/message?message=Hello&delay_by=0&throw_exception=false - Endpoint which makes a remote request behind a Hystrix command, play around with delay_by and throw_exception parameters.

5. http://localhost:8888/messageSemaphore?message=Hello&delay_by=0&throw_exception=false - Endpoint which makes a remote request behind a Hystrix command but using Semaphore based isolation strategy, play around with delay_by and throw_exception parameters.

6. http://localhost:8888/messageCached?message=Hello&delay_by=500&throw_exception=false - Hystrix Command with Caching

7. http://localhost:8888/sampleCollapser?id=1 - Hystrix Request Collapsing