spring - 无法使用 Spring Cloud 连接到 Hystrix Dashboard 的 Command Metric Stream

Question

我有一个带有 Spring Cloud 的微服务项目，来自父级的代码片段:

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.7.RELEASE</version>
</parent>

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>Dalston.SR3</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>

所有服务都运行在Eureka服务器下:

所有服务都运行良好。我可以与 postman 进行适当的通话，一切正常。

我有单独的服务来处理 Hystrix 仪表板，来自 pom 的片段:

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
        <exclusions>
            <exclusion>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-tomcat</artifactId>
            </exclusion>
        </exclusions>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-jetty</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-hystrix-dashboard</artifactId>
    </dependency>

配置主类:

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

和配置yaml文件:

spring:
  application:
    name: Dashboard

server:
  port: 8000

eureka:
  client:
    fetchRegistry: true
    registerWithEureka: false
    serviceUrl:
      defaultZone: http://localhost:8761/eureka

我正在寻找下一个仪表板:

来自控制台的完整堆栈跟踪是 here 。以下是一些片段:

2018-04-12 11:28:25.089 ERROR 15762 --- [qtp295055909-16] ashboardConfiguration$ProxyStreamServlet : Error proxying request: http://localhost:8082/hystrix.stream
java.lang.RuntimeException: org.eclipse.jetty.io.EofException
    at org.springframework.cloud.netflix.hystrix.dashboard.HystrixDashboardConfiguration$ProxyStreamServlet.doGet(HystrixDashboardConfiguration.java:208)
....
Caused by: org.eclipse.jetty.io.EofException: null
...
Caused by: java.io.IOException: Broken pipe
...

服务本身可以通过 Spring 执行器访问:

来自它的pom的片段:

    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-eureka</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-hystrix</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-actuator</artifactId>
    </dependency>

配置类看起来:

@EnableHystrix
@EnableEurekaClient
@SpringBootApplication
public class TableApp {
    public static void main(String[] args) {
        SpringApplication.run(TableApp.class, args);
    }
}

如何解决这个问题？

Answer 1

对于使用 Spring Boot 2 的用户，hystrix.stream 端点已移至 /actuator/hystrix.stream。

对我来说这个网址有效:

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

是的，通过以下属性启用此执行器端点:

management.endpoints.web.exposure.include=hystrix.stream

当然，您的项目中必须包含执行器依赖项。