feign.RetryableException: connect timed out executing xxxxxx

Spring Cloud 使用 OpenFeign 报错

connect timed out executing GET http://CLOUD-PAYMENT-SERVICE/payment/feign/timeout

feign.RetryableException: connect timed out executing GET http://CLOUD-PAYMENT-SERVICE/payment/feign/timeout at feign.FeignException.errorExecuting(FeignException.java:213) at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:115) at feign.SynchronousMethodHandler.invoke(SynchronousMethodHandler.java:80) at feign.ReflectiveFeign$FeignInvocationHandler.invoke(ReflectiveFeign.java:103) at com.sun.proxy.$Proxy158.paymentFeignTimout(Unknown Source) at com.cup.springcloud.controller.OrderFeignController.paymentFeignTimout(OrderFeignController.java:29) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:888) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)

......

错误原因

OpenFeign 调用超时，OpenFeign 底层有 Ribbon, 而 它的默认超时时间是 1 s ，如果你确定你的调用代码是正确的，那么说明是业务处理时间超过了 1 s ，这样的话只需要将超时时间设置的长一点就可以了

是在服务消费方中设置：

# 设置 feign 客户端超时时间（OpenFeign 默认支持 ribbon）
ribbon:
  # 值的是建立连接所用的时间，使用与网络状态正常的情况，两端连接所用的时间
  ReadTimeout: 5000
  # 指的是建立连接后从服务器读取到可用资源所用的时间
  ConnectionTimeout: 5000

设置足够长的时间后，如果运行后等待了你设置的时间后又报了同样的错误，那肯定是 OpenFeign 的调用流程写的有问题，反复检查。