Hi- Any comments? I suspect an issue with the reliability of the timeout setting on Linux since the same behaves more reliably on Windows. In any case a 15 minute write to a socket with timeout setting of 20 seconds seems like a bug.
Thanks On Wed, Mar 19, 2014 at 10:19 PM, Rossen Stoyanchev < rstoyanc...@gopivotal.com> wrote: > hi, > > The scenario involves a mobile phone switching from wifi to (unstable) > mobile network. The phone looses the connection but the server doesn't > seem aware. Basically the server tries to send a message and blocks the > thread on which this is done. From the logs it seems to take about 15 > minutes before a "java.net.SocketException: Broken pipe" finally occurs. > > Is this expected behavior or an issue? > > I've seen the websocket-how-to on setting BLOCKING_SEND_TIMEOUT. However I > would have expected a timeout based on the default value of 20 seconds. > Also it says the property is configurable through the WebSocketSession but > for something like this I would expect a global setting. Is there such a > way to do that? > > The issue was originally reported here [1]. It's a long thread and might > not add to much more. It's worth pointing out the issue seems to be > reproducible with even 1 phone. Also it could not be reproduced on a > windows server with the same tomcat7 server (7.0.52). > > Here is the stack of the the writing thread: > > - java.net.SocketOutputStream.socketWrite0(java.io.FileDescriptor, > byte[], int, int) @bci=0 (Compiled frame; information may be imprecise) > - java.net.SocketOutputStream.socketWrite(byte[], int, int) @bci=52, > line=113 (Compiled frame) > - java.net.SocketOutputStream.write(byte[], int, int) @bci=4, line=159 > (Compiled frame) > - > org.apache.coyote.http11.upgrade.BioServletOutputStream.doWrite(boolean, > byte[], int, int) @bci=8, line=37 (Compiled frame) > - > org.apache.coyote.http11.upgrade.AbstractServletOutputStream.writeInternal(byte[], > int, int) @bci=24, line=125 (Compiled frame) > - > org.apache.coyote.http11.upgrade.AbstractServletOutputStream.write(byte[], > int, int) @bci=16, line=92 (Compiled frame) > - > org.apache.tomcat.websocket.server.WsRemoteEndpointImplServer.onWritePossible(boolean) > @bci=68, line=94 (Compiled frame) > - > org.apache.tomcat.websocket.server.WsRemoteEndpointImplServer.doWrite(javax.websocket.SendHandler, > java.nio.ByteBuffer[]) @bci=12, line=81 (Compiled frame) > - > org.apache.tomcat.websocket.WsRemoteEndpointImplBase.writeMessagePart(org.apache.tomcat.websocket.WsRemoteEndpointImplBase$MessagePart) > @bci=349, line=378 (Compiled frame) > - org.apache.tomcat.websocket.WsRemoteEndpointImplBase.startMessage(byte, > java.nio.ByteBuffer, boolean, javax.websocket.SendHandler) @bci=99, > line=279 (Compiled frame) > - > org.apache.tomcat.websocket.WsRemoteEndpointImplBase$TextMessageSendHandler.write() > @bci=97, line=672 (Interpreted frame) > - > org.apache.tomcat.websocket.WsRemoteEndpointImplBase.sendPartialString(java.nio.CharBuffer, > boolean) @bci=43, line=210 (Interpreted frame) > - > org.apache.tomcat.websocket.WsRemoteEndpointImplBase.sendPartialString(java.lang.String, > boolean) @bci=13, line=185 (Interpreted frame) > - > org.apache.tomcat.websocket.WsRemoteEndpointBasic.sendText(java.lang.String, > boolean) @bci=6, line=49 (Compiled frame) > > Rossen > >
