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我已经浏览了链接:Unable to connect to Command Metric Stream for Hystrix Dashboard with Spring Cloud并尝试了几个选项,但目前还没有任何结果。我正在开发Spring Cloud Code + Hystrix + Turbine

你能告诉我是什么问题吗?我正在使用 Spring Boot v2.0.4.RELEASE

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HystrixDashboardApplication.java

@EnableTurbine
@EnableHystrixDashboard
@SpringBootApplication
public class HystrixDashboardApplication {

    public static void main(String[] args) {
        SpringApplication.run(HystrixDashboardApplication.class, args);
    }
}

pom.xml

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.4.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <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>Finchley.SR1</spring-cloud.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-hystrix-dashboard</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-turbine</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>

tollrate-billboard应用程序具有以下代码 TollrateBillboardApplication.java

@EnableCircuitBreaker
@SpringBootApplication
@EnableEurekaClient
public class TollrateBillboardApplication {

    public static void main(String[] args) {
        SpringApplication.run(TollrateBillboardApplication.class, args);
    }
}

仪表板控制器.java

@Controller
public class DashboardController {

    @LoadBalanced
    @Bean
    public RestTemplate restTemplate(RestTemplateBuilder builder) {
        return builder.build();
    }

    @Autowired
    private RestTemplate restTemplate;

    @HystrixCommand(fallbackMethod = "getTollRateBackup")
    @RequestMapping("/dashboard")
    public String GetTollRate(@RequestParam int stationId, Model m) {

        TollRate tr = restTemplate.getForObject("http://pluralsight-toll-service/tollrate/" + stationId, TollRate.class);
        System.out.println("stationId: " + stationId);
        m.addAttribute("rate", tr.getCurrentRate());
        return "dashboard";
    }

    public String getTollRateBackup(@RequestParam int stationId, Model m) { 
        System.out.println("Fallback operation called");
        m.addAttribute("rate", "1.00");
        return "dashboard";
    }
}

引导程序属性

spring.application.name=pluralsight-tollrate-billboard

应用程序属性

server.port=8082
# eureka.client.serviceUrl.defaultZone=http://localhost:8761/eureka/
eureka.client.register-with-eureka=true
eureka.client.fetch-registry=true

#http://cloud.spring.io/spring-cloud-static/Finchley.RELEASE/single/spring-cloud.html#_environment_changes
management.endpoints.web.exposure.include=hystrix.stream

CURL 命令结果:

curl "http://localhost:8085/clusters"

输出

[
    {
        "name": "PLURALSIGHT-FASTPASS-CONSOLE",
        "link": "http://localhost:8085/turbine.stream?cluster=PLURALSIGHT-FASTPASS-CONSOLE"
    },
    {
        "name": "PLURALSIGHT-TOLLRATE-BILLBOARD",
        "link": "http://localhost:8085/turbine.stream?cluster=PLURALSIGHT-TOLLRATE-BILLBOARD"
    }
]

EDIT-1::,我正在使用“hystrix-turbine”

@EnableTurbineStream
@SpringBootApplication
public class HystrixTurbineApplication {

    public static void main(String[] args) {
        SpringApplication.run(HystrixTurbineApplication.class, args);
    }
}

现在,我遇到以下错误:

2018-09-03 22:23:45.808  WARN 2820 --- [nio-8085-exec-5] ashboardConfiguration$ProxyStreamServlet : Failed opening connection to http://localhost:8085/turbine.stream?cluster=PLURALSIGHT-FASTPASS-CONSOLE : 404 : HTTP/1.1 404 
2018-09-03 22:23:45.808  WARN 2820 --- [nio-8085-exec-2] ashboardConfiguration$ProxyStreamServlet : Failed opening connection to http://localhost:8085/turbine.stream?cluster=PLURALSIGHT-FASTPASS-CONSOLE : 404 : HTTP/1.1 404 
4

2 回答 2

1

@Sayali 我尝试在我自己的系统中重新创建错误并且我设法让它工作,这里有一些你可以做的检查:

1)您的第一个屏幕截图中的 URL 不正确。您在 Hystrix Dashboard 中的流 URL 应该是:

http://localhost:8085/turbine.stream?cluster=PLURALSIGHT-TOLLRATE-BILLBOARD

该 url 应该指向@EnableTurbine在您的主类中有注释的仪表板应用程序的端口。

2) 检查您是否收到以下回复:

http://localhost:8082/actuator/hystrix.stream

(为此使用您的浏览器)(这应该来自您启用 hystrix on using 的应用程序@EnableCircuitBreaker

如果您收到 ping,那么至少可以访问您的 hystrix 流。如果没有,请检查您是否有:org.springframework.boot:spring-boot-starter-actuator在依赖项中,
并确保您@EnableCircuitBreaker在主类中的应用程序的 application.properties 文件中设置了以下属性:

management.endpoints.web.exposure.include= hystrix.stream, info, health

再次检查 URL。

3)在移动到涡轮流之前,请先让涡轮部分工作,所以到目前为止,您可以进行以下更改:

@EnableTurbine // instead of @EnableTurbineStream
@SpringBootApplication
public class HystrixTurbineApplication {

    public static void main(String[] args) {
        SpringApplication.run(HystrixTurbineApplication.class, args);
    }
}

此外,要使用 TurbineStream:

你可能想让你的 Hystrix 命令将指标推送到 Turbine。Spring Cloud 通过消息传递实现了这一点。要在客户端上执行此操作,请添加对 spring-cloud-netflix-hystrix-stream 和您选择的 spring-cloud-starter-stream-* 的依赖项。

参考:http ://cloud.spring.io/spring-cloud-static/Finchley.SR1/single/spring-cloud.html#_turbine_stream

我希望这有帮助。请发表评论以帮助我知道这是否对您有用。

于 2018-09-05T09:33:24.153 回答
0

不好意思回复迟了。将以下配置添加到服务 hystrix.stream hystrix.dashboard.proxyStreamAllowList 的实例:'**'

于 2022-03-04T02:13:34.390 回答