Spring Cloud series twelve monitor Hystrix interface :Hystrix Dashboard and Turbine

The Hystrix Dashboard monitors Hystrix running status in real time. But the Hystrix dashboard can only monitor a single device.

The following configurations are in project Cloud-consumer-Hystrix. In order to add support for Hystrix dashboard to the service, we modified cloud-consumer-Hystrix (this project is described in the Spring Cloud series 11 @Feign Hystrix personalization and integration principles). This excerpt), only the changes are listed here:

Add the Hystrix Dashboard dependency JAR to POM.xml

<! -- hystrix dashboard --> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-netflix-hystrix-dashboard</artifactId> </dependency> <! Unable to connect to Command Metric Stream. > <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency>Copy the code

Add the @enablecircuitbreaker annotation to the startup class. This annotation is required

@springBootApplication @enableFeignClients @enableeurekaclient // Configure this application to use service registration and service discovery @enablecircuitbreaker // Start a circuit breaker, If you want to monitor the flow of hystrix must open the annotation, even fegin already through property public class HystrixFeignCloudConsumerApplication {... .}Copy the code

Test startup service

• Start project cloud-registration-Center:
  
  
  • The configuration center address is http://127.0.0.1:10761
• Start the project cloud – service – hystrix HystrixCloudServiceApplication start classes
• Start the project cloud – consumer – hystrix HystrixFeignCloudConsumerApplication start classes

Go to http://127.0.0.1:12082/hystrix.stream

The following information is constantly updated

ping: data: {" type ":" HystrixCommand ", "name" : "IMyHystrixClient# simpleHystrixClientCall (long)", "group" : "cloud - hystrix - service"... .Copy the code

If there is no more than print information, please perform monitoring URL, such as in this case, http://127.0.0.1:12082//hystrix-feign/simple

Type http://127.0.0.1:12082/hystrix.stream in the first space, click on the “Monitor Stream”, Into the monitoring interface Current you constantly refresh http://127.0.0.1:12082//hystrix-feign/simple, the following interface will change accordingly

Note: If there is no data in this interface, please refresh this interface.

Refer to the official figure for the meanings of each field

We set up a separate project as Turbine’s service

Pom.xml introduces the HystrixDashboard jar as well as the Turbin package

<! -- hystrix dashboard --> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-netflix-hystrix-dashboard</artifactId> </dependency> <! Unable to connect to Command Metric Stream. > <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> <! -- turbine --> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-turbine</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-netflix-turbine</artifactId> </dependency>Copy the code

Property configuration – Bootstrap-dashboard.yml: Register yourself with the service center

# port server: port: 12086 Spring: Application: Cloud-dashboard-hystrix Eureka: client: serviceUrl: # Server register/obtain server zone defaultZone: Instance: http://127.0.0.1:10761/eureka/ -- - IP - address: trueCopy the code

Yml Configure turbine’s services and specify cloud-consumer-hystrix and aggregation clusters to monitor

Turbine: # configure the serviceId list in Eureka to indicate which services to monitor. Separate multiple services with '," to separate appConfig: cloud-consumer-hystrix Aggregator: # specify which cluster to aggregate, use ", "split, default. You can use http://... /turbine.stream? Cluster ={clusterConfig one} Access clusterConfig: default clusterNameExpression: New String("default")Copy the code

Start class HystrixDashboardCloudApplication @ EnableTurbine: start the Turbine

@springBootApplication @enableEurekaclient // Configure this application to use service registration and service discovery @enablehystrixDashboard @enableturbine // http://127.0.0.1:12086/hystrix public class HystrixDashboardCloudApplication {public static void main (String [] args) { args = new String[1]; args[0] = "--spring.profiles.active=dashboard"; SpringApplication.run(HystrixDashboardCloudApplication.class, args); }}Copy the code

To make it easier for turbin users, we need to start two Cloud-consumer-Hystrix

Modification project: Cloud – consumer – hystrix, plus on HystrixSimpleCloudConsumerApplication @ EnableEurekaClient and start, For more information, please refer to this article. Spring Cloud Series 10 Using @HystrixCommand Using Hystrix and @Enablecircuitbreaker

We then restart HystrixDashboardCloudApplication service Then we input to monitor http://127.0.0.1:12086/turbine.stream in http://127.0.0.1:12086/hystrix interface

Then keep refreshing:http://127.0.0.1:12082/hystrix-feign/simpleandhttp://127.0.0.1:12083/hystrix/simple

The hystrix information of the two services is displayed on the monitoring interface