Zuul Forwarding Exception caused by org.apache.http.NoHttpResponseException: 目标服务器响应失败
Zuul Forwarding Exception caused by org.apache.http.NoHttpResponseException: The target server failed to respond
你好 Stack Overflow 社区，
自从我问了一个问题以来已经有一段时间了，所以如果我忘记了一些信息，请告诉我，我会很乐意添加。
我们最近发现了我们的客户端-服务器中发生的一些问题。我们是 运行 一个 Spring 服务器，它处理客户端请求并通过 Thymeleaf 呈现 HTML。我们使用 Zuul 将我们的许多客户端路由重定向到单个 Spring 端点，该端点提供单个捆绑包，这样无论用户在哪里刷新，他们都会收到我们希望他们获得的捆绑包。这似乎在大多数时间都有效，但大约每分钟一次（每分钟数千次）我们会得到一个 zuul 转发异常，如下所示：
[2m2020-11-30 02:26:51.023[0;39m [33m WARN[0;39m [35m50[0;39m [2m---[0;39m [33m[trace=,span=][0;39m [2m[nio-8080-exec-2][0;39m [36mo.s.c.n.z.filters.post.SendErrorFilter [0;39m
[2m:[0;39m Error during filteringcom.netflix.zuul.exception.ZuulException: Forwarding error
at
org.springframework.cloud.netflix.zuul.filters.route.SimpleHostRoutingFilter.handleException(SimpleHostRoutingFilter.java:261) ~[spring-cloud-netflix-zuul-2.2.1.RELEASE.jar:2.2.1.RELEASE]
at
org.springframework.cloud.netflix.zuul.filters.route.SimpleHostRoutingFilter.run(SimpleHostRoutingFilter.java:241) ~[spring-cloud-netflix-zuul-2.2.1.RELEASE.jar:2.2.1.RELEASE]
at
com.netflix.zuul.ZuulFilter.runFilter(ZuulFilter.java:117) ~[zuul-core-1.3.1.jar:1.3.1]
at
com.netflix.zuul.FilterProcessor.processZuulFilter(FilterProcessor.java:193) ~[zuul-core-1.3.1.jar:1.3.1]
at com.netflix.zuul.FilterProcessor.runFilters(FilterProcessor.java:157) ~[zuul-core-1.3.1.jar:1.3.1]
at
com.netflix.zuul.FilterProcessor.route(FilterProcessor.java:118) ~[zuul-core-1.3.1.jar:1.3.1]
at
com.netflix.zuul.ZuulRunner.route(ZuulRunner.java:96) ~[zuul-core-1.3.1.jar:1.3.1]
at
com.netflix.zuul.http.ZuulServlet.route(ZuulServlet.java:116) ~[zuul-core-1.3.1.jar:1.3.1]
at
com.netflix.zuul.http.ZuulServlet.service(ZuulServlet.java:81) ~[zuul-core-1.3.1.jar:1.3.1]
at
org.springframework.web.servlet.mvc.ServletWrappingController.handleRequestInternal(ServletWrappingController.java:166) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.springframework.cloud.netflix.zuul.web.ZuulController.handleRequest(ZuulController.java:45) [spring-cloud-netflix-zuul-2.2.1.RELEASE.jar:2.2.1.RELEASE]
at
org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:52) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:626) [tomcat-embed-core-9.0.37.jar:4.0.FR]
at
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) [tomcat-embed-core-9.0.37.jar:4.0.FR]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) [tomcat-embed-websocket-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.springframework.web.servlet.resource.ResourceUrlEncodingFilter.doFilter(ResourceUrlEncodingFilter.java:64) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) [spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) [spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:109) [spring-boot-actuator-2.2.7.RELEASE.jar:2.2.7.RELEASE]
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) [spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.cloudfoundry.router.ClientCertificateMapper.doFilter(ClientCertificateMapper.java:79) [client_certificate_mapper-1.11.0_RELEASE.jar:na]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:747) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1589) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_242]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_242]
at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.37.jar:9.0.37]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_242]
Caused by: org.apache.http.NoHttpResponseException: The target server failed to respond
at
org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:141) ~[httpclient-4.5.12.jar:4.5.12]
at
org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:56) ~[httpclient-4.5.12.jar:4.5.12]
at
org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:259) ~[httpcore-4.4.13.jar:4.4.13]
at
org.apache.http.impl.DefaultBHttpClientConnection.receiveResponseHeader(DefaultBHttpClientConnection.java:163) ~[httpcore-4.4.13.jar:4.4.13]
at
org.apache.http.impl.conn.CPoolProxy.receiveResponseHeader(CPoolProxy.java:157) ~[httpclient-4.5.12.jar:4.5.12]
at
org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:273) ~[httpcore-4.4.13.jar:4.4.13]
at
org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:125) ~[httpcore-4.4.13.jar:4.4.13]
at
org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:272) ~[httpclient-4.5.12.jar:4.5.12]
at
org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186) ~[httpclient-4.5.12.jar:4.5.12]
at
org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110) ~[httpclient-4.5.12.jar:4.5.12]
at
org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185) ~[httpclient-4.5.12.jar:4.5.12]
at
org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:118) ~[httpclient-4.5.12.jar:4.5.12]
at
org.springframework.cloud.netflix.zuul.filters.route.SimpleHostRoutingFilter.forwardRequest(SimpleHostRoutingFilter.java:422) ~[spring-cloud-netflix-zuul-2.2.1.RELEASE.jar:2.2.1.RELEASE]
at
org.springframework.cloud.netflix.zuul.filters.route.SimpleHostRoutingFilter.forward(SimpleHostRoutingFilter.java:341) ~[spring-cloud-netflix-zuul-2.2.1.RELEASE.jar:2.2.1.RELEASE]
at
org.springframework.cloud.netflix.zuul.filters.route.SimpleHostRoutingFilter.run(SimpleHostRoutingFilter.java:236) ~[spring-cloud-netflix-zuul-2.2.1.RELEASE.jar:2.2.1.RELEASE]
... 61 common frames omitted
如您所见，我们使用的是 HttpClient 4.5.12。我在此 中看到 4.4 中出现了类似的问题，但我们升级后问题仍然存在。在同一个 post @daimarom 评论说，也许 PoolingHttpClientConnectionManager 可能会导致问题。这就是我们配置池管理器的方式：
@Bean
public PoolingHttpClientConnectionManager connectionManager() {
PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager();
connectionManager.setValidateAfterInactivity(5000);
connectionManager.setDefaultMaxPerRoute(40);
connectionManager.setMaxTotal(15);
return connectionManager;
}
@Bean
public CloseableHttpClient httpClient() throws Exception {
return HttpClients.custom()
.disableAutomaticRetries()
.setSSLContext(sslContext())
.setSSLSocketFactory(socketFactory())
.setConnectionManager(connectionManager())
.setSSLHostnameVerifier(new NoopHostnameVerifier())
.build();
}
尝试使用连接管理器参数没有帮助。
我们有一个 Zuul 过滤器，但我们的路由完全基于配置以排除任何逻辑错误。目前我们的 Zuul 配置如下所示：
zuul:
sensitive-headers:
host.socket-timeout-millis: 60000
routes:
api:
strip-prefix: false
path: /api/**
url: "${validation.urls.piserver}"
extract:
strip-prefix: true
path: /web2/extract/**
url: "${validation.urls.piclient}/validate"
legal:
strip-prefix: true
path: /web2/legal/**
url: "${validation.urls.piclient}/validate"
capture-vin:
strip-prefix: true
path: /web2/capture-instructions/vin/**
url: "${validation.urls.piclient}/validate"
recapture-vin:
strip-prefix: true
path: /web2/recapture-instructions/vin/**
url: "${validation.urls.piclient}/validate"
capture-odometer:
strip-prefix: true
path: /web2/capture-instructions/odometer/**
url: "${validation.urls.piclient}/validate"
recapture-odometer:
strip-prefix: true
path: /web2/recapture-instructions/odometer/**
url: "${validation.urls.piclient}/validate"
capture-rear:
strip-prefix: true
path: /web2/capture-instructions/rear/**
url: "${validation.urls.piclient}/validate"
recapture-rear:
strip-prefix: true
path: /web2/recapture-instructions/rear/**
url: "${validation.urls.piclient}/validate"
capture-rear-passenger:
strip-prefix: true
path: /web2/capture-instructions/rear-passenger/**
url: "${validation.urls.piclient}/validate"
recapture-rear-passenger:
strip-prefix: true
path: /web2/recapture-instructions/rear-passenger/**
url: "${validation.urls.piclient}/validate"
capture-front-passenger:
strip-prefix: true
path: /web2/capture-instructions/front-passenger/**
url: "${validation.urls.piclient}/validate"
recapture-front-passenger:
strip-prefix: true
path: /web2/recapture-instructions/front-passenger/**
url: "${validation.urls.piclient}/validate"
capture-front-driver:
strip-prefix: true
path: /web2/capture-instructions/front-driver/**
url: "${validation.urls.piclient}/validate"
recapture-front-driver:
strip-prefix: true
path: /web2/recapture-instructions/front-driver/**
url: "${validation.urls.piclient}/validate"
capture-rear-driver:
strip-prefix: true
path: /web2/capture-instructions/rear-driver/**
url: "${validation.urls.piclient}/validate"
recapture-rear-driver:
strip-prefix: true
path: /web2/recapture-instructions/rear-driver/**
url: "${validation.urls.piclient}/validate"
capture-damage-left:
strip-prefix: true
path: /web2/capture-instructions/damage-left/**
url: "${validation.urls.piclient}/validate"
recapture-damage-left:
strip-prefix: true
path: /web2/recapture-instructions/damage-left/**
url: "${validation.urls.piclient}/validate"
capture-damage-center:
strip-prefix: true
path: /web2/damage-capture-instructions/damage-center/**
url: "${validation.urls.piclient}/validate"
recapture-damage-center:
strip-prefix: true
path: /web2/damage-recapture-instructions/damage-center/**
url: "${validation.urls.piclient}/validate"
capture-damage-right:
strip-prefix: true
path: /web2/damage-capture-instructions/damage-right/**
url: "${validation.urls.piclient}/validate"
recapture-damage-right:
strip-prefix: true
path: /web2/damage-recapture-instructions/damage-right/**
url: "${validation.urls.piclient}/validate"
capture-damages:
strip-prefix: true
path: /web2/capture-instructions/damages/**
url: "${validation.urls.piclient}/validate"
recapture-damages:
strip-prefix: true
path: /web2/recapture-instructions/damages/**
url: "${validation.urls.piclient}/validate"
uploading:
strip-prefix: true
path: /web2/uploading/**
url: "${validation.urls.piclient}/validate"
submit:
strip-prefix: true
path: /submit/**
url: "${validation.urls.piclient}/validate"
intake-processing:
strip-prefix: true
path: /intake-processing/**
url: "${validation.urls.piclient}/validate"
already-submitted:
strip-prefix: true
path: /already-submitted/**
url: "${validation.urls.piclient}/validate"
submit-v1:
strip-prefix: true
path: /submit
url: "${validation.urls.piclient}/validate"
intake-processing-v1:
strip-prefix: true
path: /intake-processing
url: "${validation.urls.piclient}/validate"
already-submitted-v1:
strip-prefix: true
path: /already-submitted
url: "${validation.urls.piclient}/validate"
当我们在当前上下文中简单地重置请求 URI 时，这在路由过滤器中更加简洁，但正如我之前提到的，现在这都是基于配置的。
我们所有的依赖都在这里定义：
dependencies {
compileOnly 'org.projectlombok:lombok'
annotationProcessor 'org.projectlombok:lombok'
annotationProcessor 'org.springframework.boot:spring-boot-configuration-processor'
implementation 'org.yaml:snakeyaml:1.26'
implementation 'io.github.openfeign:feign-httpclient:10.7.4'
implementation 'org.springframework.boot:spring-boot-starter-web'
implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
implementation 'org.springframework.boot:spring-boot-starter-actuator'
implementation 'org.springframework.cloud:spring-cloud-starter-openfeign'
implementation 'org.springframework.cloud:spring-cloud-starter-netflix-zuul'
implementation 'org.apache.tomcat.embed:tomcat-embed-core:9.0.37'
implementation 'org.apache.tomcat.embed:tomcat-embed-el:9.0.37'
implementation 'org.apache.tomcat.embed:tomcat-embed-websocket:9.0.37'
implementation 'org.springframework.cloud:spring-cloud-cloudfoundry-connector'
testImplementation 'org.springframework.security:spring-security-test'
testImplementation('org.springframework.boot:spring-boot-starter-test') {
exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
}
}
我觉得我在这里遗漏了一些非常明显的东西，但我们对 Zuul 非常有经验的经理最近离开了。如果我可以在此处添加任何其他信息，请告诉我。提前感谢您的帮助。
[更新]
我最近尝试将整个池管理器从配置中移除。问题一直存在。现在 HttpClient 的配置如下所示：
@Bean
public CloseableHttpClient httpClient() throws Exception {
return HttpClients.custom()
.disableAutomaticRetries()
.setSSLContext(sslContext())
.setSSLSocketFactory(socketFactory())
// .setConnectionManager(connectionManager())
.setSSLHostnameVerifier(new NoopHostnameVerifier())
.build();
}
此外，我们尝试了使用和不使用显式定义的 spring 安全配置链。没有任何帮助。
好的，@brijesh 在评论中提到了一个我尚未尝试的潜在解决方案，但我最终部署了另一个“修复”更改。这更像是从很可能仍在发生的问题中恢复过来。我只是通过注释掉以下行来启用自动重试：
@Bean
public CloseableHttpClient httpClient() throws Exception {
return HttpClients.custom()
// .disableAutomaticRetries()
.setSSLContext(sslContext())
.setSSLSocketFactory(socketFactory())
.setConnectionManager(connectionManager())
.setSSLHostnameVerifier(new NoopHostnameVerifier())
.build();
}
对于没有明确配置其 HttpClient 设置的任何人，这应该不是问题，因为默认设置是重试 3 次。
对于确实配置了这些设置并且连接管理器有问题的人，我将很快尝试@brijesh 的方法（禁用自动重试）以查看解决方案是否解决了根本原因。完成后我会在这里更新答案。
你好 Stack Overflow 社区，
自从我问了一个问题以来已经有一段时间了，所以如果我忘记了一些信息，请告诉我，我会很乐意添加。
我们最近发现了我们的客户端-服务器中发生的一些问题。我们是 运行 一个 Spring 服务器，它处理客户端请求并通过 Thymeleaf 呈现 HTML。我们使用 Zuul 将我们的许多客户端路由重定向到单个 Spring 端点，该端点提供单个捆绑包，这样无论用户在哪里刷新，他们都会收到我们希望他们获得的捆绑包。这似乎在大多数时间都有效，但大约每分钟一次（每分钟数千次）我们会得到一个 zuul 转发异常，如下所示：
[2m2020-11-30 02:26:51.023[0;39m [33m WARN[0;39m [35m50[0;39m [2m---[0;39m [33m[trace=,span=][0;39m [2m[nio-8080-exec-2][0;39m [36mo.s.c.n.z.filters.post.SendErrorFilter [0;39m
[2m:[0;39m Error during filteringcom.netflix.zuul.exception.ZuulException: Forwarding error
at
org.springframework.cloud.netflix.zuul.filters.route.SimpleHostRoutingFilter.handleException(SimpleHostRoutingFilter.java:261) ~[spring-cloud-netflix-zuul-2.2.1.RELEASE.jar:2.2.1.RELEASE]
at
org.springframework.cloud.netflix.zuul.filters.route.SimpleHostRoutingFilter.run(SimpleHostRoutingFilter.java:241) ~[spring-cloud-netflix-zuul-2.2.1.RELEASE.jar:2.2.1.RELEASE]
at
com.netflix.zuul.ZuulFilter.runFilter(ZuulFilter.java:117) ~[zuul-core-1.3.1.jar:1.3.1]
at
com.netflix.zuul.FilterProcessor.processZuulFilter(FilterProcessor.java:193) ~[zuul-core-1.3.1.jar:1.3.1]
at com.netflix.zuul.FilterProcessor.runFilters(FilterProcessor.java:157) ~[zuul-core-1.3.1.jar:1.3.1]
at
com.netflix.zuul.FilterProcessor.route(FilterProcessor.java:118) ~[zuul-core-1.3.1.jar:1.3.1]
at
com.netflix.zuul.ZuulRunner.route(ZuulRunner.java:96) ~[zuul-core-1.3.1.jar:1.3.1]
at
com.netflix.zuul.http.ZuulServlet.route(ZuulServlet.java:116) ~[zuul-core-1.3.1.jar:1.3.1]
at
com.netflix.zuul.http.ZuulServlet.service(ZuulServlet.java:81) ~[zuul-core-1.3.1.jar:1.3.1]
at
org.springframework.web.servlet.mvc.ServletWrappingController.handleRequestInternal(ServletWrappingController.java:166) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.springframework.cloud.netflix.zuul.web.ZuulController.handleRequest(ZuulController.java:45) [spring-cloud-netflix-zuul-2.2.1.RELEASE.jar:2.2.1.RELEASE]
at
org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:52) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:626) [tomcat-embed-core-9.0.37.jar:4.0.FR]
at
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) [tomcat-embed-core-9.0.37.jar:4.0.FR]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) [tomcat-embed-websocket-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.springframework.web.servlet.resource.ResourceUrlEncodingFilter.doFilter(ResourceUrlEncodingFilter.java:64) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) [spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) [spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:109) [spring-boot-actuator-2.2.7.RELEASE.jar:2.2.7.RELEASE]
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) [spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.cloudfoundry.router.ClientCertificateMapper.doFilter(ClientCertificateMapper.java:79) [client_certificate_mapper-1.11.0_RELEASE.jar:na]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:747) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1589) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.37.jar:9.0.37]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_242]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_242]
at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.37.jar:9.0.37]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_242]
Caused by: org.apache.http.NoHttpResponseException: The target server failed to respond
at
org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:141) ~[httpclient-4.5.12.jar:4.5.12]
at
org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:56) ~[httpclient-4.5.12.jar:4.5.12]
at
org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:259) ~[httpcore-4.4.13.jar:4.4.13]
at
org.apache.http.impl.DefaultBHttpClientConnection.receiveResponseHeader(DefaultBHttpClientConnection.java:163) ~[httpcore-4.4.13.jar:4.4.13]
at
org.apache.http.impl.conn.CPoolProxy.receiveResponseHeader(CPoolProxy.java:157) ~[httpclient-4.5.12.jar:4.5.12]
at
org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:273) ~[httpcore-4.4.13.jar:4.4.13]
at
org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:125) ~[httpcore-4.4.13.jar:4.4.13]
at
org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:272) ~[httpclient-4.5.12.jar:4.5.12]
at
org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186) ~[httpclient-4.5.12.jar:4.5.12]
at
org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110) ~[httpclient-4.5.12.jar:4.5.12]
at
org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185) ~[httpclient-4.5.12.jar:4.5.12]
at
org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:118) ~[httpclient-4.5.12.jar:4.5.12]
at
org.springframework.cloud.netflix.zuul.filters.route.SimpleHostRoutingFilter.forwardRequest(SimpleHostRoutingFilter.java:422) ~[spring-cloud-netflix-zuul-2.2.1.RELEASE.jar:2.2.1.RELEASE]
at
org.springframework.cloud.netflix.zuul.filters.route.SimpleHostRoutingFilter.forward(SimpleHostRoutingFilter.java:341) ~[spring-cloud-netflix-zuul-2.2.1.RELEASE.jar:2.2.1.RELEASE]
at
org.springframework.cloud.netflix.zuul.filters.route.SimpleHostRoutingFilter.run(SimpleHostRoutingFilter.java:236) ~[spring-cloud-netflix-zuul-2.2.1.RELEASE.jar:2.2.1.RELEASE]
... 61 common frames omitted
如您所见，我们使用的是 HttpClient 4.5.12。我在此 PoolingHttpClientConnectionManager 可能会导致问题。这就是我们配置池管理器的方式：
@Bean
public PoolingHttpClientConnectionManager connectionManager() {
PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager();
connectionManager.setValidateAfterInactivity(5000);
connectionManager.setDefaultMaxPerRoute(40);
connectionManager.setMaxTotal(15);
return connectionManager;
}
@Bean
public CloseableHttpClient httpClient() throws Exception {
return HttpClients.custom()
.disableAutomaticRetries()
.setSSLContext(sslContext())
.setSSLSocketFactory(socketFactory())
.setConnectionManager(connectionManager())
.setSSLHostnameVerifier(new NoopHostnameVerifier())
.build();
}
尝试使用连接管理器参数没有帮助。
我们有一个 Zuul 过滤器，但我们的路由完全基于配置以排除任何逻辑错误。目前我们的 Zuul 配置如下所示：
zuul:
sensitive-headers:
host.socket-timeout-millis: 60000
routes:
api:
strip-prefix: false
path: /api/**
url: "${validation.urls.piserver}"
extract:
strip-prefix: true
path: /web2/extract/**
url: "${validation.urls.piclient}/validate"
legal:
strip-prefix: true
path: /web2/legal/**
url: "${validation.urls.piclient}/validate"
capture-vin:
strip-prefix: true
path: /web2/capture-instructions/vin/**
url: "${validation.urls.piclient}/validate"
recapture-vin:
strip-prefix: true
path: /web2/recapture-instructions/vin/**
url: "${validation.urls.piclient}/validate"
capture-odometer:
strip-prefix: true
path: /web2/capture-instructions/odometer/**
url: "${validation.urls.piclient}/validate"
recapture-odometer:
strip-prefix: true
path: /web2/recapture-instructions/odometer/**
url: "${validation.urls.piclient}/validate"
capture-rear:
strip-prefix: true
path: /web2/capture-instructions/rear/**
url: "${validation.urls.piclient}/validate"
recapture-rear:
strip-prefix: true
path: /web2/recapture-instructions/rear/**
url: "${validation.urls.piclient}/validate"
capture-rear-passenger:
strip-prefix: true
path: /web2/capture-instructions/rear-passenger/**
url: "${validation.urls.piclient}/validate"
recapture-rear-passenger:
strip-prefix: true
path: /web2/recapture-instructions/rear-passenger/**
url: "${validation.urls.piclient}/validate"
capture-front-passenger:
strip-prefix: true
path: /web2/capture-instructions/front-passenger/**
url: "${validation.urls.piclient}/validate"
recapture-front-passenger:
strip-prefix: true
path: /web2/recapture-instructions/front-passenger/**
url: "${validation.urls.piclient}/validate"
capture-front-driver:
strip-prefix: true
path: /web2/capture-instructions/front-driver/**
url: "${validation.urls.piclient}/validate"
recapture-front-driver:
strip-prefix: true
path: /web2/recapture-instructions/front-driver/**
url: "${validation.urls.piclient}/validate"
capture-rear-driver:
strip-prefix: true
path: /web2/capture-instructions/rear-driver/**
url: "${validation.urls.piclient}/validate"
recapture-rear-driver:
strip-prefix: true
path: /web2/recapture-instructions/rear-driver/**
url: "${validation.urls.piclient}/validate"
capture-damage-left:
strip-prefix: true
path: /web2/capture-instructions/damage-left/**
url: "${validation.urls.piclient}/validate"
recapture-damage-left:
strip-prefix: true
path: /web2/recapture-instructions/damage-left/**
url: "${validation.urls.piclient}/validate"
capture-damage-center:
strip-prefix: true
path: /web2/damage-capture-instructions/damage-center/**
url: "${validation.urls.piclient}/validate"
recapture-damage-center:
strip-prefix: true
path: /web2/damage-recapture-instructions/damage-center/**
url: "${validation.urls.piclient}/validate"
capture-damage-right:
strip-prefix: true
path: /web2/damage-capture-instructions/damage-right/**
url: "${validation.urls.piclient}/validate"
recapture-damage-right:
strip-prefix: true
path: /web2/damage-recapture-instructions/damage-right/**
url: "${validation.urls.piclient}/validate"
capture-damages:
strip-prefix: true
path: /web2/capture-instructions/damages/**
url: "${validation.urls.piclient}/validate"
recapture-damages:
strip-prefix: true
path: /web2/recapture-instructions/damages/**
url: "${validation.urls.piclient}/validate"
uploading:
strip-prefix: true
path: /web2/uploading/**
url: "${validation.urls.piclient}/validate"
submit:
strip-prefix: true
path: /submit/**
url: "${validation.urls.piclient}/validate"
intake-processing:
strip-prefix: true
path: /intake-processing/**
url: "${validation.urls.piclient}/validate"
already-submitted:
strip-prefix: true
path: /already-submitted/**
url: "${validation.urls.piclient}/validate"
submit-v1:
strip-prefix: true
path: /submit
url: "${validation.urls.piclient}/validate"
intake-processing-v1:
strip-prefix: true
path: /intake-processing
url: "${validation.urls.piclient}/validate"
already-submitted-v1:
strip-prefix: true
path: /already-submitted
url: "${validation.urls.piclient}/validate"
当我们在当前上下文中简单地重置请求 URI 时，这在路由过滤器中更加简洁，但正如我之前提到的，现在这都是基于配置的。
我们所有的依赖都在这里定义：
dependencies {
compileOnly 'org.projectlombok:lombok'
annotationProcessor 'org.projectlombok:lombok'
annotationProcessor 'org.springframework.boot:spring-boot-configuration-processor'
implementation 'org.yaml:snakeyaml:1.26'
implementation 'io.github.openfeign:feign-httpclient:10.7.4'
implementation 'org.springframework.boot:spring-boot-starter-web'
implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
implementation 'org.springframework.boot:spring-boot-starter-actuator'
implementation 'org.springframework.cloud:spring-cloud-starter-openfeign'
implementation 'org.springframework.cloud:spring-cloud-starter-netflix-zuul'
implementation 'org.apache.tomcat.embed:tomcat-embed-core:9.0.37'
implementation 'org.apache.tomcat.embed:tomcat-embed-el:9.0.37'
implementation 'org.apache.tomcat.embed:tomcat-embed-websocket:9.0.37'
implementation 'org.springframework.cloud:spring-cloud-cloudfoundry-connector'
testImplementation 'org.springframework.security:spring-security-test'
testImplementation('org.springframework.boot:spring-boot-starter-test') {
exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
}
}
我觉得我在这里遗漏了一些非常明显的东西，但我们对 Zuul 非常有经验的经理最近离开了。如果我可以在此处添加任何其他信息，请告诉我。提前感谢您的帮助。
[更新] 我最近尝试将整个池管理器从配置中移除。问题一直存在。现在 HttpClient 的配置如下所示：
@Bean
public CloseableHttpClient httpClient() throws Exception {
return HttpClients.custom()
.disableAutomaticRetries()
.setSSLContext(sslContext())
.setSSLSocketFactory(socketFactory())
// .setConnectionManager(connectionManager())
.setSSLHostnameVerifier(new NoopHostnameVerifier())
.build();
}
此外，我们尝试了使用和不使用显式定义的 spring 安全配置链。没有任何帮助。
好的，@brijesh 在评论中提到了一个我尚未尝试的潜在解决方案，但我最终部署了另一个“修复”更改。这更像是从很可能仍在发生的问题中恢复过来。我只是通过注释掉以下行来启用自动重试：
@Bean
public CloseableHttpClient httpClient() throws Exception {
return HttpClients.custom()
// .disableAutomaticRetries()
.setSSLContext(sslContext())
.setSSLSocketFactory(socketFactory())
.setConnectionManager(connectionManager())
.setSSLHostnameVerifier(new NoopHostnameVerifier())
.build();
}
对于没有明确配置其 HttpClient 设置的任何人，这应该不是问题，因为默认设置是重试 3 次。
对于确实配置了这些设置并且连接管理器有问题的人，我将很快尝试@brijesh 的方法（禁用自动重试）以查看解决方案是否解决了根本原因。完成后我会在这里更新答案。