Connection reset by peer: socket write error

왜인지... 원인은 찾았지만 이유를 확실하게 알 수가 없다. 

simplecaptcha를 개발하던 도중에 음성듣기 기능을 구현하고 테스트 중이였다.

그런데 IE 중에서도 IE9, IE10에서만 발생한다. 크롬, 파이어폭스, 오페라에서는 정상 동작을 하는 것이다.

음성듣기 기능은 크롬, 파이어폭스, 오페라에서는 audio 태그를 이용하고, IE에서는 embed 태그를 이용한다.

그러니 embed 태그 쪽에 문제가 있어보였다. 하지만 아무리 검색을 해보아도 에러코드는 같지만 원인은 여러가지가 있었다. 그 중에서 톰켓7의 문제일 수도 있다는 글을 봤는데... 모르겠다. 왜 특정 버젼에서만 안되는 것인가...

한참을 찾다가 답이 안보여서 일딴 로그를 좀 더 꼼꼼히 보기로 하고 다시 테스트를 진행하였다. 로그를 꼼꼼히 보다가 놓쳤던 부분을 확인했다. wav파일을 생성하는 URL을 두 번씩 호출하고 있었던 것이다. 그런데 두 번째에서 계속 에러가 난다. 왤까? 항상 하던 방식으로 했을 뿐인데... embed 태그는 보통 embed 태그에서 한번 embed 태그의 자식 태그에서 한번, 소스를 총 두번 호출하도록 정의해서 사용했었다. 그런데 이게 뭔가와 충돌이 나는 것인가보다. 그것도 IE9,10에서만... 하... 에러코드에 너무 집착을 한 것 같다.

embed 태그에서 호출하는 것을 지우니 잘 동작한다... 이걸로 6시간을 날리다니... 머리가 아픈게 정상이겠지...

원인과 연관지어 생각해보니 에러코드가 이해가 간다.

에러코드는 다음과 같다. 처음 한줄 이외는 전혀 모르겠다.

org.apache.catalina.connector.ClientAbortException: java.net.SocketException: Connection reset by peer: socket write error

at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:407)

at org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:371)

at org.apache.catalina.connector.OutputBuffer.writeBytes(OutputBuffer.java:432)

at org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:420)

at org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:91)

at org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:84)

at nl.captcha.servlet.CaptchaServletUtil.writeAudio(CaptchaServletUtil.java:49)

at kr.co.skylife.brand.util.CaptchaUtil.makeTextAudio(CaptchaUtil.java:88)

at kr.co.skylife.brand.common.controller.CommonController.captchaAudio(CommonController.java:1418)

at kr.co.skylife.brand.common.controller.CommonController$$FastClassByCGLIB$$f43e97c9.invoke(<generated>)

at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)

at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)

at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)

at kr.co.skylife.brand.intercepter.AuthValidationAspect.authValidationHandler(AuthValidationAspect.java:87)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

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

at java.lang.reflect.Method.invoke(Method.java:606)

at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)

at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)

at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)

at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)

at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)

at kr.co.skylife.brand.common.controller.CommonController$$EnhancerByCGLIB$$345b877.captchaAudio(<generated>)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

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

at java.lang.reflect.Method.invoke(Method.java:606)

at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)

at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)

at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)

at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)

at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)

at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)

at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)

at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)

at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)

at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:624)

at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)

at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)

at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:436)

at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1078)

at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)

at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)

at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

at java.lang.Thread.run(Thread.java:745)

Caused by: java.net.SocketException: Connection reset by peer: socket write error

at java.net.SocketOutputStream.socketWrite0(Native Method)

at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:113)

at java.net.SocketOutputStream.write(SocketOutputStream.java:159)

at org.apache.coyote.http11.InternalOutputBuffer.realWriteBytes(InternalOutputBuffer.java:215)

at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:480)

at org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:366)

at org.apache.coyote.http11.InternalOutputBuffer$OutputStreamOutputBuffer.doWrite(InternalOutputBuffer.java:240)

at org.apache.coyote.http11.filters.IdentityOutputFilter.doWrite(IdentityOutputFilter.java:84)

at org.apache.coyote.http11.AbstractOutputBuffer.doWrite(AbstractOutputBuffer.java:192)

at org.apache.coyote.Response.doWrite(Response.java:499)

at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:402)

... 67 more