Hystrix仪表盘--Unable to connect to Command Metric Stream

骑猪看日落 2022-05-27 01:18 138阅读 0赞

Unable to connect to Command Metric Stream  这个是错误是链接不上，错误原因可能是缺少jar包或者没有Enable相关服务。

针对ribbon实现断路由监控

1.则pom中需要加入以下jar包

**\[java\]**  [view plain][]   [copy][view plain]

1.  <dependency>  
2.              <groupId>org.springframework.cloud</groupId>  
3.              <artifactId>spring-cloud-starter-hystrix</artifactId>  
4.          </dependency>  
5.          <dependency>  
6.              <groupId>org.springframework.boot</groupId>  
7.              <artifactId>spring-boot-starter-actuator</artifactId>  
8.          </dependency>  
9.          <dependency>  
10.             <groupId>org.springframework.cloud</groupId>  
11.             <artifactId>spring-cloud-starter-hystrix-dashboard</artifactId>  
12.         </dependency>

2.boot启动程序启动下面标签对应的服务

@EnableHystrix
    @EnableHystrixDashboard

3.对应的service上肯定要加上断路由设定的

@HystrixCommand(fallbackMethod = "hiError")

针对fegin的实现断路由监控

因为fegin中本身自带断路器的，所以跟ribbon的处理稍有不同

1.则pom中需要加入以下jar包，本身实现断路处理不需要引入spring-cloud-starter-hystrix这个jar就可以实现，但是要加入监控则还是需要引入下面3个jar包

**\[java\]**  [view plain][]   [copy][view plain]

1.  <span style="font-size:14px;"><dependency>  
2.              <groupId>org.springframework.cloud</groupId>  
3.              <artifactId>spring-cloud-starter-hystrix</artifactId>  
4.          </dependency>  
5.          <dependency>  
6.              <groupId>org.springframework.boot</groupId>  
7.              <artifactId>spring-boot-starter-actuator</artifactId>  
8.          </dependency>  
9.          <dependency>  
10.             <groupId>org.springframework.cloud</groupId>  
11.             <artifactId>spring-cloud-starter-hystrix-dashboard</artifactId>  
12.         </dependency></span>

2.boot启动程序启动下面标签对应的服务（一定不能少@EnableCircuitBreaker，刚开始就是少这个报的unable to connect错误）

@EnableHystrixDashboard
    @EnableCircuitBreaker

3.对应的service上肯定要加上断路由设定的

@FeignClient(value = "service-hi" ,fallback = SchedualServiceHiHystric.class)
    public interface SchedualServiceHi {
        @GetMapping("/hi")
        String sayHiFromClientOne(@RequestParam(value = "name") String name) ;
    }

[view plain]: https://blog.csdn.net/seapeak007/article/details/77261729#