“增加Readme.md”
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- 当一个服务的处理请求的失败次数大于阈值时候,熔断器开启,这时候所有的请求都会执行快速失败,是不会去调用实际的服务的;
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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,熔断器继续关闭。
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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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## 二、项目结构
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@ -28,7 +28,7 @@
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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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@ -144,7 +144,7 @@ public List<Product> queryAllProducts() {
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3.5 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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#### 3.5 启动服务,访问 localhost:8030/hystrix
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@ -154,15 +154,15 @@ 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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**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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**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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@ -172,7 +172,7 @@ public List<Product> queryAllProducts() {
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单体监控和聚合监控:
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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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@ -279,11 +279,11 @@ public class TurbineApplication {
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在 localhost:8030/hystrix或者localhost:8030/hystrix(consumer和producer都集成了hystrix) 页面输入http://localhost:8040/turbine.stream,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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**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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## 五、整合过程中可能出现的问题
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@ -322,4 +322,4 @@ public class TurbineApplication {
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这种情况是熔断器所在的方法没有被调用,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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