Java 中java.io.IOException: Broken pipe認(rèn)識(shí)broken pipe

pipe是管道的意思，管道里面是數(shù)據(jù)流，通常是從文件或網(wǎng)絡(luò)套接字讀取的數(shù)據(jù)。

當(dāng)該管道從另一端突然關(guān)閉時(shí)，會(huì)發(fā)生數(shù)據(jù)突然中斷，即是broken。

對(duì)于文件File來(lái)說(shuō)，這可能是文件安裝在已斷開(kāi)連接的光盤(pán)或遠(yuǎn)程網(wǎng)絡(luò)上。

對(duì)于socket來(lái)說(shuō)，可能是網(wǎng)絡(luò)被拔出或另一端的進(jìn)程崩潰。

在Java中，沒(méi)有具體的BrokenPipeException。

將此類錯(cuò)誤包含在另一個(gè)異常，例如java.io.IOException:Broken pipe

解決問(wèn)題

其實(shí)當(dāng)該異常產(chǎn)生的時(shí)候，對(duì)于服務(wù)端來(lái)說(shuō)，并沒(méi)有多少影響。因?yàn)榭赡苁悄硞€(gè)客戶端突然中止了進(jìn)程導(dǎo)致了該錯(cuò)誤。但是為了程序能夠美觀、優(yōu)雅，還是要在合適的地方捕獲該異常，并處理一下。

還有一種可能性就是程序里面有代碼執(zhí)行時(shí)間過(guò)長(zhǎng)，用戶等待時(shí)間過(guò)久，才會(huì)強(qiáng)行中止進(jìn)程。

那么這種情況下就需要去分析log中報(bào)異常的地方是經(jīng)常發(fā)生在什么地方，合理優(yōu)化該段代碼，提升代碼的運(yùn)行速度，才能從根本上避免此類問(wèn)題的再次發(fā)生。

可能原因：

1、客戶端請(qǐng)求服務(wù)器數(shù)據(jù)，服務(wù)器突然掛了；

2、客戶端請(qǐng)求服務(wù)端數(shù)據(jù)，服務(wù)端正常返回，凡是客戶端由于超時(shí)等原因斷開(kāi)。

原因分析：

做了壓力測(cè)試，發(fā)現(xiàn)遇到的情況屬于第二種，由于去數(shù)據(jù)庫(kù)取數(shù)據(jù)的時(shí)候，30秒里無(wú)法正常獲取有效的數(shù)據(jù)庫(kù)連接，或者查詢時(shí)間長(zhǎng)，導(dǎo)致OSB過(guò)來(lái)的請(qǐng)求超時(shí)，也就是客戶端超時(shí)了，服務(wù)端還試圖返回?cái)?shù)據(jù)，結(jié)果導(dǎo)致如題異常。

解決方法：

1、增大數(shù)據(jù)庫(kù)連接池?cái)?shù)量；

2、延長(zhǎng)客戶端超時(shí)時(shí)間。

java.io.IOException: Broken pipe 線上問(wèn)題記錄

今天在上線前staging環(huán)境驗(yàn)證時(shí)遇到這樣一個(gè)問(wèn)題java.io.IOException: Broken pipe，操作服務(wù)剛起來(lái)之后，測(cè)試人員第一次進(jìn)行更配[post]操作，結(jié)果操作失敗，但是第二次就好了，

我們是springboot+angularJs前后端分離，然后服務(wù)使用k8s在容器中部署，原始的異常棧信息是這樣，

2019-09-26T02:42:09Z [http-nio-8080-exec-9] WARN [org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver:411] - Failed to invoke @ExceptionHandler method: public org.springframework.http.ResponseEntity<com.inspur.common.exception.ErrorResponse> com.inspur.common.exception.CommonControllerAdvice.exceptionHandler(javax.servlet.http.HttpServletRequest,java.lang.Exception)org.apache.catalina.connector.ClientAbortException: java.io.IOException: Broken pipeat org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:321)at org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:284)at org.apache.catalina.connector.CoyoteOutputStream.flush(CoyoteOutputStream.java:118)at org.springframework.security.web.util.OnCommittedResponseWrapper$SaveContextServletOutputStream.flush(OnCommittedResponseWrapper.java:514)at com.fasterxml.jackson.core.json.UTF8JsonGenerator.flush(UTF8JsonGenerator.java:1100)at com.fasterxml.jackson.databind.ObjectWriter.writeValue(ObjectWriter.java:915)at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.writeInternal(AbstractJackson2HttpMessageConverter.java:285)at org.springframework.http.converter.AbstractGenericHttpMessageConverter.write(AbstractGenericHttpMessageConverter.java:102)at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:272)at org.springframework.web.servlet.mvc.method.annotation.HttpEntityMethodProcessor.handleReturnValue(HttpEntityMethodProcessor.java:224)at org.springframework.web.method.support.HandlerMethodReturnValueHandlerComposite.handleReturnValue(HandlerMethodReturnValueHandlerComposite.java:82)at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:119)at org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver.doResolveHandlerMethodException(ExceptionHandlerExceptionResolver.java:400)at org.springframework.web.servlet.handler.AbstractHandlerMethodExceptionResolver.doResolveException(AbstractHandlerMethodExceptionResolver.java:61)at org.springframework.web.servlet.handler.AbstractHandlerExceptionResolver.resolveException(AbstractHandlerExceptionResolver.java:136)at org.springframework.web.servlet.handler.HandlerExceptionResolverComposite.resolveException(HandlerExceptionResolverComposite.java:78)at org.springframework.web.servlet.DispatcherServlet.processHandlerException(DispatcherServlet.java:1255)at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1062)at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1008)at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925)at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:974)at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:866)at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:851)at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)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:52)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)at com.inspur.common.filter.RepeatedlyReadFilter.doFilter(RepeatedlyReadFilter.java:34)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)at com.inspur.eip.config.filter.KeyClockAuthFilter.doFilter(KeyClockAuthFilter.java:53)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:123)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:123)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:90)at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)at com.inspur.iam.adapter.filter.SecurityContextFilter.doFilter(SecurityContextFilter.java:119)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320)at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127)at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91)at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:119)at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137)at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)at org.keycloak.adapters.springsecurity.filter.KeycloakAuthenticatedActionsFilter.doFilter(KeycloakAuthenticatedActionsFilter.java:74)at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)at org.keycloak.adapters.springsecurity.filter.KeycloakSecurityContextRequestFilter.doFilter(KeycloakSecurityContextRequestFilter.java:77)at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170)at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)at org.keycloak.adapters.springsecurity.filter.KeycloakAuthenticationProcessingFilter.successfulAuthentication(KeycloakAuthenticationProcessingFilter.java:208)at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:240)at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116)at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)at org.keycloak.adapters.springsecurity.filter.KeycloakPreAuthActionsFilter.doFilter(KeycloakPreAuthActionsFilter.java:84)at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:66)at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56)at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215)at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178)at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357)at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109)at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93)at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:155)at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:123)at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:108)at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)at org.keycloak.adapters.tomcat.AbstractAuthenticatedActionsValve.invoke(AbstractAuthenticatedActionsValve.java:67)at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493)at org.keycloak.adapters.tomcat.AbstractKeycloakAuthenticatorValve.invoke(AbstractKeycloakAuthenticatorValve.java:181)at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:800)at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:806)at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498)at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)at java.lang.Thread.run(Thread.java:748)Caused by: java.io.IOException: Broken pipeat sun.nio.ch.FileDispatcherImpl.write0(Native Method)at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:47)at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93)at sun.nio.ch.IOUtil.write(IOUtil.java:65)at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:471)at org.apache.tomcat.util.net.NioChannel.write(NioChannel.java:134)at org.apache.tomcat.util.net.NioBlockingSelector.write(NioBlockingSelector.java:101)at org.apache.tomcat.util.net.NioSelectorPool.write(NioSelectorPool.java:157)at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.doWrite(NioEndpoint.java:1306)at org.apache.tomcat.util.net.SocketWrapperBase.doWrite(SocketWrapperBase.java:726)at org.apache.tomcat.util.net.SocketWrapperBase.flushBlocking(SocketWrapperBase.java:679)at org.apache.tomcat.util.net.SocketWrapperBase.flush(SocketWrapperBase.java:669)at org.apache.coyote.http11.Http11OutputBuffer$SocketOutputBuffer.flush(Http11OutputBuffer.java:646)at org.apache.coyote.http11.filters.ChunkedOutputFilter.flush(ChunkedOutputFilter.java:169)at org.apache.coyote.http11.Http11OutputBuffer.flush(Http11OutputBuffer.java:252)at org.apache.coyote.http11.Http11Processor.flush(Http11Processor.java:1561)at org.apache.coyote.AbstractProcessor.action(AbstractProcessor.java:380)at org.apache.coyote.Response.action(Response.java:173)at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:317)... 127 moreresolve exception

之后的操作，就正常了，正常日志如下：

google之后大概知道是什么問(wèn)題了

注：讀懂下面這句話，首先要熟悉TCP 四次揮手，不太熟悉 請(qǐng)右轉(zhuǎn)google

總結(jié) Broken Pipe：

這個(gè)異常是客戶端讀取超時(shí)關(guān)閉了連接,這時(shí)候服務(wù)器端再向客戶端已經(jīng)斷開(kāi)的連接寫(xiě)數(shù)據(jù)時(shí)就發(fā)生了broken pipe異常！

作為一個(gè)后端工程師，一定要對(duì)日常的一些異常有一個(gè)積累總結(jié)，筆者就自己有在總結(jié)，一是總結(jié)整理之后，下次遇到同樣的問(wèn)題自己不會(huì)很茫然不知所措，尤其是在上線是，其他同事都在等著你解決問(wèn)題的時(shí)候，你吭吭唧唧那就不太好了，二是筆者之前在面試時(shí)也有經(jīng)常被問(wèn)到類似的問(wèn)題，記憶尤新的就是被云校的百度小哥問(wèn)到connection by peer，之前博客也有介紹，作為社招有經(jīng)驗(yàn)的工程師，更不能再以校招的面試作為自己的標(biāo)準(zhǔn)了，要有自己的經(jīng)驗(yàn)積累，反正就是，干，就完了

最后，附一張我的錯(cuò)誤記事本截圖

以上為個(gè)人經(jīng)驗(yàn)，希望能給大家一個(gè)參考，也希望大家多多支持好吧啦網(wǎng)。