java.io.IOException : Broken pipe

Question

我们目前正在将旧版应用程序迁移到 Jetty。而且我有一个关于破损管道的异常(exception)情况。

• Java 6
• jetty 8.1.8
• Spring 3.2.0

我正在尝试将 Glassfish Web 应用程序迁移到 Jetty。在我们的测试环境中，我们使用的是负载均衡器，一切正常。我们的客户工作没有任何问题。

WARN  [2013-04-03 13:34:28,963] com.myapp.bbb.config.MvcDefaultConfig$1: Handler execution resulted in exception
! org.eclipse.jetty.io.EofException: null
! at org.eclipse.jetty.http.HttpGenerator.flushBuffer(HttpGenerator.java:914)
! at org.eclipse.jetty.http.HttpGenerator.complete(HttpGenerator.java:798)
! at org.eclipse.jetty.server.AbstractHttpConnection.completeResponse(AbstractHttpConnection.java:642)
! at org.eclipse.jetty.server.Response.complete(Response.java:1234)
! at org.eclipse.jetty.server.Response.sendError(Response.java:404)
! at org.eclipse.jetty.server.Response.sendError(Response.java:416)
! at org.springframework.web.servlet.DispatcherServlet.noHandlerFound(DispatcherServlet.java:1111)
! at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:898)
! at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
! at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:915)
! at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:811)
! at javax.servlet.http.HttpServlet.service(HttpServlet.java:735)
! at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:796)
! at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
! at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:669)
! at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1336)
! at com.magnetdigital.maggy.dropwizard.head2get.Head2GetFilter.doFilter(Head2GetFilter.java:22)
! at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1307)
! at com.yammer.dropwizard.servlets.ThreadNameFilter.doFilter(ThreadNameFilter.java:29)
! at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1307)
! at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:453)
! at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:229)
! at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1072)
! at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:382)
! at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
! at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1006)
! at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
! at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
! at com.yammer.metrics.jetty.InstrumentedHandler.handle(InstrumentedHandler.java:200)
! at org.eclipse.jetty.server.handler.GzipHandler.handle(GzipHandler.java:275)
! at com.yammer.dropwizard.jetty.BiDiGzipHandler.handle(BiDiGzipHandler.java:123)
! at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)
! at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
! at org.eclipse.jetty.server.Server.handle(Server.java:365)
! at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:485)
! at org.eclipse.jetty.server.BlockingHttpConnection.handleRequest(BlockingHttpConnection.java:53)
! at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:926)
! at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:988)
! at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:635)
! at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
! at org.eclipse.jetty.server.BlockingHttpConnection.handle(BlockingHttpConnection.java:72)
! at org.eclipse.jetty.server.nio.BlockingChannelConnector$BlockingChannelEndPoint.run(BlockingChannelConnector.java:298)
! at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
! at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
! at java.lang.Thread.run(Thread.java:662)
Caused by: ! java.io.IOException: Broken pipe
! at sun.nio.ch.FileDispatcher.write0(Native Method)
! at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:29)
! at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:69)
! at sun.nio.ch.IOUtil.write(IOUtil.java:26)
! at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:334)
! at org.eclipse.jetty.io.nio.ChannelEndPoint.flush(ChannelEndPoint.java:293)
! at org.eclipse.jetty.server.nio.BlockingChannelConnector$BlockingChannelEndPoint.flush(BlockingChannelConnector.java:253)
! at org.eclipse.jetty.http.HttpGenerator.flushBuffer(HttpGenerator.java:850)
!... 44 common frames omitted

当我检查堆栈跟踪时，我发现这个异常总是由 404 请求触发。

org.springframework.web.servlet.DispatcherServlet.noHandlerFound(DispatcherServlet.java:1111)

• 为什么会出现这个异常？
• 如何在本地机器上重现此异常？

Answer 1

“管道损坏”的最常见原因是(通过套接字进行通信的一对机器)在通信完成之前关闭了其套接字末端。其中大约一半是因为在该套接字上通信的程序已终止。

如果发送字节的程序将它们发送出去并立即关闭套接字或自行终止，则套接字可能会在字节传输和读取之前停止运行。

尝试在关闭套接字的任何地方以及在允许程序终止之前暂停以查看是否有帮助。

仅供引用:“管道”和“套接字”是有时可以互换使用的术语。