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@ -37,7 +37,7 @@
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- 当一个服务处理请求失败的次数大于阈值时,熔断器开启,这时所有的请求都会执行快速失败,而不会去调用实际的服务;
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- 当熔断器处于打开状态的一段时间后,熔断器处于半打开状态,这时候一定数量的请求回去调用实际的服务,如果调用成功,则代表服务可用了,熔断器关闭;如果还是失败,则代表服务还是不可用,熔断器继续打开。
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<div align="center"> <img src="https://github.com/heibaiying/spring-samples-for-all/blob/master/pictures/circuitbreaker.png"/> </div>
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<div align="center"> <img src="https://gitee.com/heibaiying/spring-samples-for-all/raw/master/pictures/circuitbreaker.png"/> </div>
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## 二、项目结构
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@ -49,7 +49,7 @@
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+ **eureka**: 注册中心;
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+ **turbine**:多个熔断器的聚合监控。
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<div align="center"> <img src="https://github.com/heibaiying/spring-samples-for-all/blob/master/pictures/spring-cloud-hystrix.png"/> </div>
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<div align="center"> <img src="https://gitee.com/heibaiying/spring-samples-for-all/raw/master/pictures/spring-cloud-hystrix.png"/> </div>
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## 三、整合 Hystrix
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@ -172,7 +172,7 @@ public List<Product> queryAllProducts() {
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启动服务,访问 http://localhost:8030/sell/products ,多次刷新查看熔断情况:
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<div align="center"> <img src="https://github.com/heibaiying/spring-samples-for-all/blob/master/pictures/hystrix-8030.png"/> </div>
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<div align="center"> <img src="https://gitee.com/heibaiying/spring-samples-for-all/raw/master/pictures/hystrix-8030.png"/> </div>
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### 3.7 控制台
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@ -182,15 +182,15 @@ public List<Product> queryAllProducts() {
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**登录页面**:
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<div align="center"> <img src="https://github.com/heibaiying/spring-samples-for-all/blob/master/pictures/hystrix-single-login.png"/> </div>
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<div align="center"> <img src="https://gitee.com/heibaiying/spring-samples-for-all/raw/master/pictures/hystrix-single-login.png"/> </div>
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**监控页面**:
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<div align="center"> <img src="https://github.com/heibaiying/spring-samples-for-all/blob/master/pictures/hystrix-8030-login.png"/> </div>
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<div align="center"> <img src="https://gitee.com/heibaiying/spring-samples-for-all/raw/master/pictures/hystrix-8030-login.png"/> </div>
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**关于各个参数的说明参见[官方 wiki](https://github.com/Netflix-Skunkworks/hystrix-dashboard/wiki) 提供的图**:
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<div align="center"> <img src="https://github.com/heibaiying/spring-samples-for-all/blob/master/pictures/dashboard.png"/> </div>
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<div align="center"> <img src="https://gitee.com/heibaiying/spring-samples-for-all/raw/master/pictures/dashboard.png"/> </div>
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@ -199,7 +199,7 @@ public List<Product> queryAllProducts() {
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如果你想要聚合监控不同服务单元下的多个断路器,可以使用 Turbine 来实现。单体监控和聚合监控的区别如下:
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<div align="center"> <img src="https://github.com/heibaiying/spring-samples-for-all/blob/master/pictures/dashboard-direct-vs-turbine-640.png"/> </div>
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<div align="center"> <img src="https://gitee.com/heibaiying/spring-samples-for-all/raw/master/pictures/dashboard-direct-vs-turbine-640.png"/> </div>
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### 4.1 导入依赖
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@ -311,11 +311,11 @@ public class TurbineApplication {
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依次启动 eureka、producer、consumer、turbine 四个项目,因为 consumer 和 producer 都集成了 Hystrix ,所以可以在 localhost:8020/hystrix 或者 8030/hystrix 页面输入 http://localhost:8040/turbine.stream 来查看断路器聚合信息:
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<div align="center"> <img src="https://github.com/heibaiying/spring-samples-for-all/blob/master/pictures/hystrix-cluster-login.png"/> </div>
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<div align="center"> <img src="https://gitee.com/heibaiying/spring-samples-for-all/raw/master/pictures/hystrix-cluster-login.png"/> </div>
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**显示了不同服务单元(consumer,producer)的多个断路器信息:**
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<div align="center"> <img src="https://github.com/heibaiying/spring-samples-for-all/blob/master/pictures/hystrix-cluster.png"/> </div>
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<div align="center"> <img src="https://gitee.com/heibaiying/spring-samples-for-all/raw/master/pictures/hystrix-cluster.png"/> </div>
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## 五、常见问题
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@ -354,5 +354,5 @@ public ServletRegistrationBean getServlet() {
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这种情况是熔断器所在的方法没有被调用,所以没有产生监控数据,不是整合问题,这时候调用一下熔断器所在方法即可:
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<div align="center"> <img src="https://github.com/heibaiying/spring-samples-for-all/blob/master/pictures/hystrix-loading.png"/> </div>
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<div align="center"> <img src="https://gitee.com/heibaiying/spring-samples-for-all/raw/master/pictures/hystrix-loading.png"/> </div>
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