通过Jetty调用Request.getInputStream时管道损坏

Question

I'm running a high volume java web-app over a jetty 9.x server (4k-5k qps).

My servlet (MyServlet.java) is simple Java class the extends HttpServlet .

When getting the request object HttpServletRequest I invoke the getInputStream() method (as can be seen in the below stack) and then getting the below IOException.

I know that 'Broken pipe' means that the client closed the connection but when calculating the amount of time the request spent in the server I get ti 1ms and my client timeout is configured for much more.

Could this be the result of too much load? What could cause it? Is there some configuration in Jetty which I can play with that might affect this?

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）。