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Editor to share with you how to achieve circuit breaker monitoring Turbine in springcloud, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

In complex distributed systems, hundreds or even thousands of nodes with the same service often need to be deployed. in many cases, operators hope to show the state of the nodes with the same service in the form of an overall cluster. in this way, we can better grasp the state of the whole system. To this end, Netflix provides an open source project (Turbine) to provide the aggregation of the content of multiple hystrix.stream into a data source for Dashboard presentation.

1. Add dependencies

Org.springframework.cloud spring-cloud-starter-turbine org.springframework.cloud spring-cloud-netflix-turbine org.springframework.boot spring-boot-starter-actuator org.springframework.cloud spring-cloud-starter-hystrix-dashboard

2. Configuration file

Spring.application.name=hystrix-dashboard-turbineserver.port=8001turbine.appConfig=node01,node02turbine.aggregator.clusterConfig= defaultturbine.clusterNameExpression= new String ("default") eureka.client.serviceUrl.defaultZone= http://localhost:8000/eureka/

Turbine.appConfig: configure the serviceId list in Eureka to indicate which services to monitor

Turbine.aggregator.clusterConfig: specifies which clusters to aggregate, and multiple clusters are split using ",". The default is default. Can be accessed using one of the http://.../turbine.stream?cluster={clusterConfig}

Turbine.clusterNameExpression: 1. ClusterNameExpression specifies the cluster name, the default expression appName; at this time: turbine.aggregator.clusterConfig needs to configure the name of the application you want to monitor; 2. When clusterNameExpression: default, turbine.aggregator.clusterConfig can not write, because the default is default;3. When clusterNameExpression: metadata ['cluster'], assume that the application you want to monitor is configured with eureka.instance.metadata-map.cluster: ABC, then you need to configure it, and turbine.aggregator.clusterConfig: ABC

3. Startup class

Add @ EnableTurbine to the startup class to activate support for Turbine

@ SpringBootApplication@EnableHystrixDashboard@EnableTurbinepublic class DashboardApplication {public static void main (String [] args) {SpringApplication.run (DashboardApplication.class, args);}}

At this point, the Turbine (hystrix-dashboard-turbine) configuration is complete

4. Test

Based on the sample project spring-cloud-consumer-hystrix, it is modified to be the caller spring-cloud-consumer-node1 and spring-cloud-consumer-node2 of two services.

The changes to the spring-cloud-consumer-node1 project are as follows: contents of application.properties file

Spring.application.name=node01server.port=9001feign.hystrix.enabled=true eureka.client.serviceUrl.defaultZone= http://localhost:8000/eureka/

The changes to the spring-cloud-consumer-node2 project are as follows: contents of application.properties file

Spring.application.name=node02server.port=9002feign.hystrix.enabled=true eureka.client.serviceUrl.defaultZone= http://localhost:8000/eureka/

The HelloRemote class modifies:

FeignClient (name= "spring-cloud-producer2", fallback = HelloRemoteHystrix.class) public interface HelloRemote {@ RequestMapping (value = "/ hello") public String hello2 (@ RequestParam (value = "name") String name);}

The corresponding HelloRemoteHystrix and ConsumerController classes follow the modification. Check the code for details.

After modification, start spring-cloud-eureka, spring-cloud-consumer-node1, spring-cloud-consumer-node1, hystrix-dashboard-turbine (Turbine) in turn

When you open the eureka backend, you can see that three services are registered:

Visit http://localhost:8001/turbine.stream

Return:

: pingdata: {"reportingHostsLast10Seconds": 1, "name": "meta", "type": "meta", "timestamp": 1494921985839}

And will constantly refresh to obtain real-time monitoring data, indicating that similar to a single monitoring, the information of the monitoring project is returned. For a graphical monitoring view, enter: http://localhost:8001/hystrix, return to the cool bear interface, enter: http://localhost:8001/turbine.stream, and then click Monitor Stream, you can see that two monitoring lists appear

The above is all the contents of the article "how to realize fuse Monitoring Turbine in springcloud". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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