Smart Client hangs some time.

Classic Servoy
1

Hi All,

Servoy smart client freezing sometime and unable to enter/click any thing, application completely hangs. We could see below information in servoy_log file,

2014-06-30 12:23:50,858 ERROR [pool-2-thread-1601] com.servoy.j2db.server.dataprocessing.Zb - Error flushing message buffer to client 

85E3422D-12C7-4A37-A497-11A2C8664625 [ ]
java.rmi.ConnectException: Connection refused to host: 10.0.0.28; nested exception is: 
	java.net.ConnectException: no multiplexer found for server with id=e7c9ad4b-296d-41e8-b465-3e369c2e8cd8
	at sun.rmi.transport.tcp.TCPEndpoint.newSocket(Unknown Source)
	at sun.rmi.transport.tcp.TCPChannel.createConnection(Unknown Source)
	at sun.rmi.transport.tcp.TCPChannel.newConnection(Unknown Source)
	at sun.rmi.server.UnicastRef.invoke(Unknown Source)
	at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(Unknown Source)
	at java.rmi.server.RemoteObjectInvocationHandler.invoke(Unknown Source)
	at com.sun.proxy.$Proxy19.notifyDataChange(Unknown Source)
	at com.servoy.j2db.server.dataprocessing.ClientProxy.Zc(ClientProxy.java:11)
	at com.servoy.j2db.server.dataprocessing.Zo.run(Zo.java:18)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.net.ConnectException: no multiplexer found for server with id=e7c9ad4b-296d-41e8-b465-3e369c2e8cd8
	at com.sebster.tunnel.impl.hd.createSocket(hd.java:12)
	at com.servoy.j2db.server.rmi.tunnel.WrappingCompressingRMIClientSocketFactory.createSocket

(WrappingCompressingRMIClientSocketFactory.java:28)
	... 12 more

can you please share to us , what causes this issue.

Servoy : 7.4.1
Operating System : Windows Server 2012
Java : 7

Thanks In Advance.

2

Hi All,

Please let me know if you have any idea about this. Its very painful for my customers.

Thanks In Advance

3

somehow your network is not really stable and drops connections.
you can try to look here to tweak it with some settings:

https://wiki.servoy.com/display/DOCS/Ne … figuration

or force http mode if (instead of socket when in http&socket mode, see profiles on admin)

4

Hi Johan,

Thanks for the reply, I will check the “Advanced HTTP Tunnel Configuration” settings.

Thanks