通过Jetty调用Request.getInputStream时管道损坏

Question

我正在码头 9.x服务器（4k-5k qps）上运行大量Java Web应用程序。

我的servlet（MyServlet.java）是扩展HttpServlet简单Java类。

当获取请求对象HttpServletRequest时，我调用getInputStream（）方法（如下面的堆栈所示），然后获取下面的IOException。

我知道“管道中断”意味着客户端关闭了连接，但是在计算请求在服务器上花费的时间时，我得到了1毫秒，并且我的客户端超时配置了更多。

这可能是负载过多的结果吗？ 是什么原因造成的？ 我可以使用Jetty中的某些配置来影响它吗？

org.eclipse.jetty.io.EofException
    at org.eclipse.jetty.io.ChannelEndPoint.flush(ChannelEndPoint.java:192)
    at org.eclipse.jetty.io.WriteFlusher.flush(WriteFlusher.java:408)
    at org.eclipse.jetty.io.WriteFlusher.write(WriteFlusher.java:302)
    at org.eclipse.jetty.io.AbstractEndPoint.write(AbstractEndPoint.java:129)
    at org.eclipse.jetty.server.HttpConnection$SendCallback.process(HttpConnection.java:679)
    at org.eclipse.jetty.util.IteratingCallback.processing(IteratingCallback.java:246)
    at org.eclipse.jetty.util.IteratingCallback.iterate(IteratingCallback.java:208)
    at org.eclipse.jetty.server.HttpConnection.send(HttpConnection.java:471)
    at org.eclipse.jetty.server.HttpChannel.sendResponse(HttpChannel.java:763)
    at org.eclipse.jetty.server.HttpChannel.sendResponse(HttpChannel.java:781)
    at org.eclipse.jetty.server.HttpChannel.continue100(HttpChannel.java:240)
    at org.eclipse.jetty.server.Request.getInputStream(Request.java:674)
    at com.ta.btr.web.servlet.MyServlet.handlePostRequest(MyServlet.java:162)
    at com.ta.btr.web.servlet.MyServlet.doPost(MyServlet.java:92)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
    at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:808)
    at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:587)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
    at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)
    at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
    at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
    at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
    at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
    at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
    at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)
    at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)
    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
    at org.eclipse.jetty.server.Server.handle(Server.java:499)
    at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310)
    at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
    at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
    at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
    at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.IOException: Broken pipe
    at 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.eclipse.jetty.io.ChannelEndPoint.flush(ChannelEndPoint.java:170)
    ... 35 more

Answer 1

看来我的负载均衡器出现问题，该请求延迟导致客户端关闭连接（由于超时）。