SpringCloud中的熔断监控HystrixDashboard和Turbine示例详解_Java

springcloud之熔断监控hystrixdashboard和turbine

hystrix-dashboard是一款针对hystrix进行实时监控的工具，通过hystrix dashboard我们可以在直观地看到各

hystrix command的请求响应时间, 请求成功率等数据。但是只使用hystrix dashboard的话, 你只能看到单个应

用内的服务信息，这明显不够。我们需要一个工具能让我们汇总系统内多个服务的数据并显示到hystrix

dashboard上，这个工具就是turbine。

1、hystrix dashboard

我们在熔断示例项目的基础上更改。

1.1 添加依赖

<?xml version="1.0" encoding="utf-8"?>
<project xmlns="http://maven.apache.org/pom/4.0.0" xmlns:xsi="http://www.w3.org/2001/xmlschema-instance"
         xsi:schemalocation="http://maven.apache.org/pom/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelversion>4.0.0</modelversion>
    <parent>
        <groupid>org.springframework.boot</groupid>
        <artifactid>spring-boot-starter-parent</artifactid>
        <version>1.5.3.release</version>
        <relativepath/>
    </parent>
    <groupid>com.example</groupid>
    <artifactid>spring-cloud-consumer-hystrix-dashboard</artifactid>
    <version>0.0.1-snapshot</version>
    <name>spring-cloud-consumer-hystrix-dashboard</name>
    <description>spring-cloud-consumer-hystrix-dashboard</description>
    <properties>
        <project.build.sourceencoding>utf-8</project.build.sourceencoding>
        <project.reporting.outputencoding>utf-8</project.reporting.outputencoding>
        <java.version>1.8</java.version>
        <spring-cloud.version>dalston.release</spring-cloud.version>
    </properties>
    <dependencies>
        <dependency>
            <groupid>org.springframework.cloud</groupid>
            <artifactid>spring-cloud-starter-feign</artifactid>
        </dependency>
        <dependency>
            <groupid>org.springframework.cloud</groupid>
            <artifactid>spring-cloud-starter-eureka</artifactid>
        </dependency>
        <dependency>
            <groupid>org.springframework.boot</groupid>
            <artifactid>spring-boot-starter-web</artifactid>
        </dependency>
        <dependency>
            <groupid>org.springframework.cloud</groupid>
            <artifactid>spring-cloud-starter-hystrix</artifactid>
        </dependency>
        <dependency>
            <groupid>org.springframework.cloud</groupid>
            <artifactid>spring-cloud-starter-hystrix-dashboard</artifactid>
        </dependency>
        <dependency>
            <groupid>org.springframework.boot</groupid>
            <artifactid>spring-boot-starter-actuator</artifactid>
        </dependency>
        <dependency>
            <groupid>org.springframework.boot</groupid>
            <artifactid>spring-boot-starter-test</artifactid>
            <scope>test</scope>
        </dependency>
    </dependencies>
    <dependencymanagement>
        <dependencies>
            <dependency>
                <groupid>org.springframework.cloud</groupid>
                <artifactid>spring-cloud-dependencies</artifactid>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencymanagement>
    <build>
        <plugins>
            <plugin>
                <groupid>org.springframework.boot</groupid>
                <artifactid>spring-boot-maven-plugin</artifactid>
            </plugin>
        </plugins>
    </build>
</project>

1.2 启动类

启动类添加启用hystrix dashboard和熔断器

package com.example;
import org.springframework.boot.springapplication;
import org.springframework.boot.autoconfigure.springbootapplication;
import org.springframework.cloud.client.circuitbreaker.enablecircuitbreaker;
import org.springframework.cloud.client.discovery.enablediscoveryclient;
import org.springframework.cloud.netflix.feign.enablefeignclients;
import org.springframework.cloud.netflix.hystrix.dashboard.enablehystrixdashboard;
@springbootapplication
@enablediscoveryclient
@enablefeignclients
@enablehystrixdashboard
@enablecircuitbreaker
public class springcloudconsumerhystrixdashboardapplication {
    public static void main(string[] args) {
        springapplication.run(springcloudconsumerhystrixdashboardapplication.class, args);
    }
}

1.3 其它类

package com.example.remote;
import org.springframework.cloud.netflix.feign.feignclient;
import org.springframework.web.bind.annotation.requestmapping;
import org.springframework.web.bind.annotation.requestparam;
@feignclient(name= "spring-cloud-producer", fallback = helloremotehystrix.class)
public interface helloremote {
    @requestmapping(value = "/hello")
    public string hello(@requestparam(value = "name") string name);
}

package com.example.remote;
import org.springframework.stereotype.component;
import org.springframework.web.bind.annotation.requestparam;
@component
public class helloremotehystrix implements helloremote{
    @override
    public string hello(@requestparam(value = "name") string name) {
        return "hello " +name+", this messge send failed ";
    }
}

package com.example.controller;
import com.example.remote.helloremote;
import org.springframework.beans.factory.annotation.autowired;
import org.springframework.web.bind.annotation.pathvariable;
import org.springframework.web.bind.annotation.requestmapping;
import org.springframework.web.bind.annotation.restcontroller;
@restcontroller
public class consumercontroller {
    @autowired
    helloremote helloremote;
    @requestmapping("/hello/{name}")
    public string index(@pathvariable("name") string name) {
        return helloremote.hello(name);
    }
}

spring.application.name=spring-cloud-consumer-hystrix-dashboard
server.port=9003
feign.hystrix.enabled=true
eureka.client.serviceurl.defaultzone=http://localhost:8000/eureka/

1.4 测试

启动工程后访问 http://localhost:9003/hystrix，将会看到如下界面：

图中会有一些提示：

cluster via turbine (default cluster): http://turbine-hostname:port/turbine.stream

cluster via turbine (custom cluster): http://turbine-hostname:port/turbine.stream?cluster=[clustername]

single hystrix app: http://hystrix-app:port/hystrix.stream

大概意思就是如果查看默认集群使用第一个url，查看指定集群使用第二个url，单个应用的监控使用最后一个，我

们暂时只演示单个应用的所以在输入框中输入： http://localhost:9003/hystrix.stream ，输入之后点击

monitor，进入页面。如果没有请求会先显示loading ...：

在这里插入图片描述

访问 http://localhost:9003/hystrix.stream 也会不断的显示ping。

在这里插入图片描述

请求服务 http://localhost:9003/hello/neo，就可以看到监控的效果了：

在这里插入图片描述

首先访问 http://localhost:9003/hystrix.stream，显示如下：

data: {"type":"hystrixcommand","name":"helloremote#hello(string)","group":"spring-cloud-producer","currenttime":1662554090588,"iscircuitbreakeropen":false,"errorpercentage":0,"errorcount":0,"requestcount":0,"rollingcountbadrequests":0,"rollingcountcollapsedrequests":0,"rollingcountemit":0,"rollingcountexceptionsthrown":0,"rollingcountfailure":0,"rollingcountfallbackemit":0,"rollingcountfallbackfailure":0,"rollingcountfallbackmissing":0,"rollingcountfallbackrejection":0,"rollingcountfallbacksuccess":0,"rollingcountresponsesfromcache":0,"rollingcountsemaphorerejected":0,"rollingcountshortcircuited":0,"rollingcountsuccess":0,"rollingcountthreadpoolrejected":0,"rollingcounttimeout":0,"currentconcurrentexecutioncount":0,"rollingmaxconcurrentexecutioncount":0,"latencyexecute_mean":0,"latencyexecute":{"0":0,"25":0,"50":0,"75":0,"90":0,"95":0,"99":0,"99.5":0,"100":0},"latencytotal_mean":0,"latencytotal":{"0":0,"25":0,"50":0,"75":0,"90":0,"95":0,"99":0,"99.5":0,"100":0},"propertyvalue_circuitbreakerrequestvolumethreshold":20,"propertyvalue_circuitbreakersleepwindowinmilliseconds":5000,"propertyvalue_circuitbreakererrorthresholdpercentage":50,"propertyvalue_circuitbreakerforceopen":false,"propertyvalue_circuitbreakerforceclosed":false,"propertyvalue_circuitbreakerenabled":true,"propertyvalue_executionisolationstrategy":"thread","propertyvalue_executionisolationthreadtimeoutinmilliseconds":1000,"propertyvalue_executiontimeoutinmilliseconds":1000,"propertyvalue_executionisolationthreadinterruptontimeout":true,"propertyvalue_executionisolationthreadpoolkeyoverride":null,"propertyvalue_executionisolationsemaphoremaxconcurrentrequests":10,"propertyvalue_fallbackisolationsemaphoremaxconcurrentrequests":10,"propertyvalue_metricsrollingstatisticalwindowinmilliseconds":10000,"propertyvalue_requestcacheenabled":true,"propertyvalue_requestlogenabled":true,"reportinghosts":1,"threadpool":"spring-cloud-producer"}
data: {"type":"hystrixthreadpool","name":"spring-cloud-producer","currenttime":1662554090588,"currentactivecount":0,"currentcompletedtaskcount":1,"currentcorepoolsize":10,"currentlargestpoolsize":1,"currentmaximumpoolsize":10,"currentpoolsize":1,"currentqueuesize":0,"currenttaskcount":1,"rollingcountthreadsexecuted":0,"rollingmaxactivethreads":0,"rollingcountcommandrejections":0,"propertyvalue_queuesizerejectionthreshold":5,"propertyvalue_metricsrollingstatisticalwindowinmilliseconds":10000,"reportinghosts":1}
ping:

说明已经返回了监控的各项结果。

到监控页面就会显示如下图：

在这里插入图片描述

其实就是 http://localhost:9003/hystrix.stream 返回结果的图形化显示，hystrix dashboard wiki上详细

说明了图上每个指标的含义，如下图：

在这里插入图片描述

到此单个应用的熔断监控已经完成。

2、turbine

在复杂的分布式系统中，相同服务的节点经常需要部署上百甚至上千个，很多时候，运维人员希望能够把相同服务

的节点状态以一个整体集群的形式展现出来，这样可以更好的把握整个系统的状态。为此，netflix提供了一个开

源项目（turbine）来提供把多个hystrix.stream的内容聚合为一个数据源供dashboard展示。

2.1 添加依赖

<?xml version="1.0" encoding="utf-8"?>
<project xmlns="http://maven.apache.org/pom/4.0.0" xmlns:xsi="http://www.w3.org/2001/xmlschema-instance"
         xsi:schemalocation="http://maven.apache.org/pom/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelversion>4.0.0</modelversion>
    <parent>
        <groupid>org.springframework.boot</groupid>
        <artifactid>spring-boot-starter-parent</artifactid>
        <version>1.5.3.release</version>
        <relativepath/>
    </parent>
    <groupid>com.example</groupid>
    <artifactid>spring-cloud-hystrix-dashboard-turbine</artifactid>
    <version>0.0.1-snapshot</version>
    <name>spring-cloud-hystrix-dashboard-turbine</name>
    <description>spring-cloud-hystrix-dashboard-turbine</description>
    <properties>
        <project.build.sourceencoding>utf-8</project.build.sourceencoding>
        <project.reporting.outputencoding>utf-8</project.reporting.outputencoding>
        <java.version>1.8</java.version>
        <spring-cloud.version>dalston.release</spring-cloud.version>
    </properties>
    <dependencies>
        <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>
        <dependency>
            <groupid>org.springframework.boot</groupid>
            <artifactid>spring-boot-starter-actuator</artifactid>
        </dependency>
        <dependency>
            <groupid>org.springframework.cloud</groupid>
            <artifactid>spring-cloud-starter-hystrix-dashboard</artifactid>
        </dependency>
    </dependencies>
    <dependencymanagement>
        <dependencies>
            <dependency>
                <groupid>org.springframework.cloud</groupid>
                <artifactid>spring-cloud-dependencies</artifactid>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencymanagement>
    <build>
        <plugins>
            <plugin>
                <groupid>org.springframework.boot</groupid>
                <artifactid>spring-boot-maven-plugin</artifactid>
            </plugin>
        </plugins>
    </build>
</project>

2.2 配置文件

spring.application.name=hystrix-dashboard-turbine
server.port=8001
turbine.appconfig=node01,node02
turbine.aggregator.clusterconfig= default
turbine.clusternameexpression= new string("default")
eureka.client.serviceurl.defaultzone=http://localhost:8000/eureka/

turbine.appconfig：配置eureka中的serviceid列表，表明监控哪些服务。
turbine.aggregator.clusterconfig：指定聚合哪些集群，多个使用”,”分割，默认为default。可使用

http://.../turbine.stream?cluster={clusterconfig之一}访问。

turbine.clusternameexpression ：

1、clusternameexpression指定集群名称，默认表达式appname；此时：

turbine.aggregator.clusterconfig需要配置想要监控的应用名称；

2、当clusternameexpression: default时，turbine.aggregator.clusterconfig可以不写，因为默认就是

default；

3、当clusternameexpression: metadata[‘cluster’]时，假设想要监控的应用配置了

eureka.instance.metadata-map.cluster: abc，则需要配置，同时

turbine.aggregator.clusterconfig: abc

2.3 启动类

启动类添加@enableturbine，激活对turbine的支持

package com.example;
import org.springframework.boot.springapplication;
import org.springframework.boot.autoconfigure.springbootapplication;
import org.springframework.cloud.netflix.hystrix.dashboard.enablehystrixdashboard;
import org.springframework.cloud.netflix.turbine.enableturbine;
@springbootapplication
@enablehystrixdashboard
@enableturbine
public class springcloudhystrixdashboardturbineapplication {
	public static void main(string[] args) {
		springapplication.run(springcloudhystrixdashboardturbineapplication.class, args);
	}
}

到此turbine（hystrix-dashboard-turbine）配置完成

2.4 测试

在示例项目spring-cloud-consumer-hystrix基础上修改为两个服务的调用者spring-cloud-consumer-node1和

spring-cloud-consumer-node2。

spring-cloud-consumer-node1项目改动如下：application.properties文件内容

spring.application.name=node01
server.port=9001
feign.hystrix.enabled=true
eureka.client.serviceurl.defaultzone=http://localhost:8000/eureka/

spring-cloud-consumer-node2项目改动如下：application.properties文件内容

spring.application.name=node02
server.port=9002
feign.hystrix.enabled=true
eureka.client.serviceurl.defaultzone=http://localhost:8000/eureka/

helloremote类修改：

package com.example.remote;
import org.springframework.cloud.netflix.feign.feignclient;
import org.springframework.web.bind.annotation.requestmapping;
import org.springframework.web.bind.annotation.requestparam;
@feignclient(name = "spring-cloud-producer", fallback = helloremotehystrix.class)
public interface helloremote {
    @requestmapping(value = "/hello")
    public string hello(@requestparam(value = "name") string name);
}

对应的helloremotehystrix和consumercontroller类跟随修改，具体查看代码

package com.example.remote;
import org.springframework.stereotype.component;
import org.springframework.web.bind.annotation.requestparam;
@component
public class helloremotehystrix implements helloremote{
    @override
    public string hello(@requestparam(value = "name") string name) {
        return "hello " +name+", this messge send failed ";
    }
}

package com.example.controller;
import com.example.remote.helloremote;
import org.springframework.beans.factory.annotation.autowired;
import org.springframework.web.bind.annotation.pathvariable;
import org.springframework.web.bind.annotation.requestmapping;
import org.springframework.web.bind.annotation.restcontroller;
@restcontroller
public class consumercontroller {
    @autowired
    helloremote helloremote;
    @requestmapping("/hello/{name}")
    public string index(@pathvariable("name") string name) {
        return helloremote.hello(name);
    }
}

修改完毕后，依次启动spring-cloud-eureka、spring-cloud-consumer-node1、spring-cloud-consumer-

node2、spring-cloud-hystrix-dashboard-turbine

打开eureka后台可以看到注册了三个服务：

在这里插入图片描述

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

: ping
data: {"reportinghostslast10seconds":0,"name":"meta","type":"meta","timestamp":1662554703162}
: ping
data: {"reportinghostslast10seconds":0,"name":"meta","type":"meta","timestamp":1662554706172}

并且会不断刷新以获取实时的监控数据，说明和单个的监控类似，返回监控项目的信息。

进行图形化监控查看，输入：http://localhost:8001/hystrix，返回酷酷的小熊界面

在这里插入图片描述