Hello,
I am encountering an issue that I am right now unable to resolve. I am running my own extension that does authentication and connection management and that used to work. It doesn´t any more – neither in the version I used for quite some time nor the version I did to implement a custom field. Thus I assume it is not related to the changes I did recently… With the newer version I have the following output in guacamole trace: guacamole | 10:41:39.448 [http-nio-8080-exec-1] LindenbergBackup:LindenbergBackupConnection.connect():protocol=rdp,.name=Cobra (Running),.enhancedmode=false,.vm=true,.user=null,.id=a563f81a-8a58-4627-abca-a047739d31e7,.state=Running,.group=(Virtual Machines),.backup=null,hostname=***,security=vmconnect,preconnection-blob=a563f81a-8a58-4627-abca-a047739d31e7,.image=null,port=2179,domain=samba,.identifier=Cobra,username=Joachim, guacamole | 10:41:39.448 [http-nio-8080-exec-1] INFO o.a.g.tunnel.TunnelRequestService - User "Joachim" connected to connection "Cobra". guacamole | 10:41:39.448 [http-nio-8080-exec-1] LindenbergBackup:LindenbergBackupConfiguration.connect()-Cobra (Running) guacamole | 10:41:39.522 [http-nio-8080-exec-3] DEBUG o.a.g.rest.RESTExceptionMapper - Client request rejected: No readable active connection for tunnel. guacamole | 10:41:39.524 [http-nio-8080-exec-2] DEBUG o.a.g.rest.RESTExceptionMapper - Client request rejected: Protocol of tunnel is not known/exposed. guacamole | 10:41:40.170 [http-nio-8080-exec-6] LindenbergBackup:LindenbergBackupConfiguration.close()-Cobra (Running) guacamole | 10:41:40.181 [http-nio-8080-exec-6] INFO o.a.g.tunnel.TunnelRequestService - User "Joachim" disconnected from connection "Cobra". Duration: 723 milliseconds in other words, the connection is established or about to be established (10:41:39.448 is the last “location” in my extension before returning) and then two other threads report errors and yet another thread closes the connection. In order to find the cause, I also tried throwing an exception and the stack trace is guacamole | Exception in thread "Thread-6" java.lang.IllegalStateException: Message will not be sent because the WebSocket session has been closed guacamole | at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.writeMessagePart(WsRemoteEndpointImplBase.java:441) guacamole | at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.sendMessageBlock(WsRemoteEndpointImplBase.java:314) guacamole | at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.sendMessageBlock(WsRemoteEndpointImplBase.java:254) guacamole | at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.sendString(WsRemoteEndpointImplBase.java:195) guacamole | at org.apache.tomcat.websocket.WsRemoteEndpointBasic.sendText(WsRemoteEndpointBasic.java:37) guacamole | at org.apache.guacamole.websocket.GuacamoleWebSocketTunnelEndpoint.sendInstruction(GuacamoleWebSocketTunnelEndpoint.java:152) guacamole | at org.apache.guacamole.websocket.GuacamoleWebSocketTunnelEndpoint.access$200(GuacamoleWebSocketTunnelEndpoint.java:53) guacamole | at org.apache.guacamole.websocket.GuacamoleWebSocketTunnelEndpoint$2.run(GuacamoleWebSocketTunnelEndpoint.java:253) guacamole | java.io.IOException: who closes this? guacamole | at one.lindenberg.guacamole.LindenbergBackupConfiguration.close(LindenbergBackupConfiguration.java:119) guacamole | at one.lindenberg.guacamole.LindenbergBackupConfiguration.stateChange(LindenbergBackupConfiguration.java:124) guacamole | at one.lindenberg.guacamole.LindenbergBackupAuthenticationProvider.requestChange(LindenbergBackupAuthenticationProvider.java:164) guacamole | at one.lindenberg.guacamole.LindenbergBackupAuthenticationProvider.handleEvent(LindenbergBackupAuthenticationProvider.java:365) guacamole | at org.apache.guacamole.rest.event.ListenerService.handleEvent(ListenerService.java:53) guacamole | at org.apache.guacamole.tunnel.TunnelRequestService.fireTunnelClosedEvent(TunnelRequestService.java:114) guacamole | at org.apache.guacamole.tunnel.TunnelRequestService.access$000(TunnelRequestService.java:51) guacamole | at org.apache.guacamole.tunnel.TunnelRequestService$1.close(TunnelRequestService.java:277) guacamole | at org.apache.guacamole.websocket.GuacamoleWebSocketTunnelEndpoint.onClose(GuacamoleWebSocketTunnelEndpoint.java:364) guacamole | at org.apache.tomcat.websocket.WsSession.fireEndpointOnClose(WsSession.java:759) guacamole | at org.apache.tomcat.websocket.WsSession.onClose(WsSession.java:740) guacamole | at org.apache.tomcat.websocket.WsFrameBase.processDataControl(WsFrameBase.java:367) guacamole | at org.apache.tomcat.websocket.WsFrameBase.processData(WsFrameBase.java:296) guacamole | at org.apache.tomcat.websocket.WsFrameBase.processInputBuffer(WsFrameBase.java:133) guacamole | at org.apache.tomcat.websocket.server.WsFrameServer.onDataAvailable(WsFrameServer.java:85) guacamole | at org.apache.tomcat.websocket.server.WsFrameServer.doOnDataAvailable(WsFrameServer.java:183) guacamole | at org.apache.tomcat.websocket.server.WsFrameServer.notifyDataAvailable(WsFrameServer.java:162) guacamole | at org.apache.tomcat.websocket.server.WsHttpUpgradeHandler.upgradeDispatch(WsHttpUpgradeHandler.java:157) guacamole | at org.apache.coyote.http11.upgrade.UpgradeProcessorInternal.dispatch(UpgradeProcessorInternal.java:60) guacamole | at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:59) guacamole | at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:831) guacamole | at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1673) guacamole | at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) guacamole | at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) guacamole | at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) guacamole | at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) guacamole | at java.lang.Thread.run(Thread.java:748) I also tried to ignore the first close, but that didn´t help either. To me it looks like a race condition, but no idea where and how to resolve it. Any suggestion what to try or look for? Thanks, Joachim
