服务间feign调用，出现读超时异常

一、该问题的重现步骤是什么？

1. 服务间远程调用出现readtime out

2. 出现的异常

3.nacos配制

二、你期待的结果是什么？实际看到的又是什么？

期望看到正常的调用，正常的返回数据。但是在部署在linux上时，经常会报readtime out

三、你正在使用的是什么产品，什么版本？在什么操作系统上？

2.8.1商业版。部署至linux的centos7上。

四、请提供详细的错误堆栈信息，这很重要。

feign.RetryableException: Read timed out executing POST http://blade-face-detect/client/appScanFace

at feign.FeignException.errorExecuting(FeignException.java:249)

at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:129)

at feign.SynchronousMethodHandler.invoke(SynchronousMethodHandler.java:89)

at feign.ReflectiveFeign$FeignInvocationHandler.invoke(ReflectiveFeign.java:100)

at com.sun.proxy.$Proxy168.faceRecognition(Unknown Source)

at org.springblade.aizpai.app.service.impl.FaceEngineServiceImpl.scanUserFace(FaceEngineServiceImpl.java:48)

at org.springblade.aizpai.app.controller.FaceEngineController.scanUserFace(FaceEngineController.java:79)

at org.springblade.aizpai.app.controller.FaceEngineController$$FastClassBySpringCGLIB$$7a2af965.invoke()

at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)

at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:771)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)

at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)

at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:88)

at org.springblade.core.log.aspect.RequestLogAspect.aroundApi(RequestLogAspect.java:112)

at sun.reflect.GeneratedMethodAccessor269.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:498)

at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:644)

at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:633)

at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:70)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:175)

at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)

at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)

at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)

at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:691)

at org.springblade.aizpai.app.controller.FaceEngineController$$EnhancerBySpringCGLIB$$adacfa64.scanUserFace()

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:498)

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:105)

at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:878)

at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:792)

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.doPost(FrameworkServlet.java:909)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:517)

at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:584)

at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74)

at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)

at org.springblade.core.log.filter.LogTraceFilter.doFilter(LogTraceFilter.java:39)

at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)

at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)

at org.springblade.core.boot.request.BladeRequestFilter.doFilter(BladeRequestFilter.java:58)

at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)

at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)

at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)

at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)

at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)

at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)

at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)

at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)

at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:109)

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)

at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)

at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)

at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)

at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)

at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)

at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)

at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)

at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:68)

at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)

at io.undertow.servlet.handlers.RedirectDirHandler.handleRequest(RedirectDirHandler.java:68)

at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:111)

at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)

at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)

at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)

at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)

at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)

at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)

at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)

at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)

at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)

at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:269)

at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:78)

at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:133)

at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:130)

at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)

at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)

at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:249)

at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:78)

at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:99)

at io.undertow.server.Connectors.executeRootHandler(Connectors.java:376)

at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:830)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)

at java.lang.Thread.run(Thread.java:748)

Caused by: java.net.SocketTimeoutException: Read timed out

at java.net.SocketInputStream.socketRead0(Native Method)

at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)

at java.net.SocketInputStream.read(SocketInputStream.java:171)

at java.net.SocketInputStream.read(SocketInputStream.java:141)

at java.io.BufferedInputStream.fill(BufferedInputStream.java:246)

at java.io.BufferedInputStream.read1(BufferedInputStream.java:286)

at java.io.BufferedInputStream.read(BufferedInputStream.java:345)

at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:735)

at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:678)

at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1587)

at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1492)

at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:480)

at feign.Client$Default.convertResponse(Client.java:108)

at feign.Client$Default.execute(Client.java:104)

at org.springframework.cloud.openfeign.ribbon.RetryableFeignLoadBalancer.lambda$execute$0(RetryableFeignLoadBalancer.java:109)

at org.springframework.retry.support.RetryTemplate.doExecute(RetryTemplate.java:287)

at org.springframework.retry.support.RetryTemplate.execute(RetryTemplate.java:180)

at org.springframework.cloud.openfeign.ribbon.RetryableFeignLoadBalancer.execute(RetryableFeignLoadBalancer.java:92)

at org.springframework.cloud.openfeign.ribbon.RetryableFeignLoadBalancer.execute(RetryableFeignLoadBalancer.java:52)

at com.netflix.client.AbstractLoadBalancerAwareClient$1.call(AbstractLoadBalancerAwareClient.java:104)

at com.netflix.loadbalancer.reactive.LoadBalancerCommand$3$1.call(LoadBalancerCommand.java:303)

at com.netflix.loadbalancer.reactive.LoadBalancerCommand$3$1.call(LoadBalancerCommand.java:287)

at rx.internal.util.ScalarSynchronousObservable$3.call(ScalarSynchronousObservable.java:231)

at rx.internal.util.ScalarSynchronousObservable$3.call(ScalarSynchronousObservable.java:228)

at rx.Observable.unsafeSubscribe(Observable.java:10327)

at rx.internal.operators.OnSubscribeConcatMap$ConcatMapSubscriber.drain(OnSubscribeConcatMap.java:286)

at rx.internal.operators.OnSubscribeConcatMap$ConcatMapSubscriber.onNext(OnSubscribeConcatMap.java:144)

at com.netflix.loadbalancer.reactive.LoadBalancerCommand$1.call(LoadBalancerCommand.java:185)

at com.netflix.loadbalancer.reactive.LoadBalancerCommand$1.call(LoadBalancerCommand.java:180)

at rx.Observable.unsafeSubscribe(Observable.java:10327)

at rx.internal.operators.OnSubscribeConcatMap.call(OnSubscribeConcatMap.java:94)

at rx.internal.operators.OnSubscribeConcatMap.call(OnSubscribeConcatMap.java:42)

at rx.Observable.unsafeSubscribe(Observable.java:10327)

at rx.internal.operators.OperatorRetryWithPredicate$SourceSubscriber$1.call(OperatorRetryWithPredicate.java:127)

at rx.internal.schedulers.TrampolineScheduler$InnerCurrentThreadScheduler.enqueue(TrampolineScheduler.java:73)

at rx.internal.schedulers.TrampolineScheduler$InnerCurrentThreadScheduler.schedule(TrampolineScheduler.java:52)

at rx.internal.operators.OperatorRetryWithPredicate$SourceSubscriber.onNext(OperatorRetryWithPredicate.java:79)

at rx.internal.operators.OperatorRetryWithPredicate$SourceSubscriber.onNext(OperatorRetryWithPredicate.java:45)

at rx.internal.util.ScalarSynchronousObservable$WeakSingleProducer.request(ScalarSynchronousObservable.java:276)

at rx.Subscriber.setProducer(Subscriber.java:209)

at rx.internal.util.ScalarSynchronousObservable$JustOnSubscribe.call(ScalarSynchronousObservable.java:138)

at rx.internal.util.ScalarSynchronousObservable$JustOnSubscribe.call(ScalarSynchronousObservable.java:129)

at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)

at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)

at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)

at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)

at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)

at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)

at rx.Observable.subscribe(Observable.java:10423)

at rx.Observable.subscribe(Observable.java:10390)

at rx.observables.BlockingObservable.blockForSingle(BlockingObservable.java:443)

at rx.observables.BlockingObservable.single(BlockingObservable.java:340)

at com.netflix.client.AbstractLoadBalancerAwareClient.executeWithLoadBalancer(AbstractLoadBalancerAwareClient.java:112)

at org.springframework.cloud.openfeign.ribbon.LoadBalancerFeignClient.execute(LoadBalancerFeignClient.java:84)

at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:119)

... 95 more

五、若有更多详细信息，请在下面提供。