After speaking with our administrator he said: Technically the card and switches are set to "Auto-Duplex", which means they are running in Full Duplex mode.
One weird things is these transport errors only occur between 1 AM and 6 AM. We receive multiple in that time span but not all at the same time and the same client does not have more than one. For example: 2:01 AM Client A has the issue 2:32 AM Client C has the issue 2:46 AM Client B has the issue 2:59 AM Client D has the issue I should mention that our backups complete before 2AM. The night before they were staggered like this but it all started at 3:00 AM. Here is the interesting thing. We have 5 minute trapping of the listuser on our UniData server. We trap how many connections each client is using (count of udcs by authentication credentials). Every time this transport occurs it occurs when a new udcs connection is being spawned. For example client A may have not connections because the worker process on IIS has shutdown for inactivity. When activity occurs and the worker process spawns the min connection I believe that connection is throwing the transport error. It also occurs when a client has had a min connection of one and then it spawns a new connection and that new connection has the transport error. I believe these new connections are the ones getting the transport error and I don't see the count go up because a new one is spawned as a result of the transport error happening. This is because the logs on the server are only every 5 minutes. Weird. We are bumping up network logging but again we are pretty much done with trying to figure out why and just writing better code to handle the error when it occurs. -----Original Message----- From: owner-u2-us...@listserver.u2ug.org [mailto:owner-u2-us...@listserver.u2ug.org] On Behalf Of Symeon Breen Sent: Wednesday, April 22, 2009 1:19 AM To: u2-users@listserver.u2ug.org Subject: RE: [U2] Need assistance replicating UniObjects.NET issue I presume this is an intermittent error you are getting ? Are you using the latest uodotnet.dll that goes with udt 7.1 ? I see you are on windows, i am not sure if it has the same problems - i know on *nix you have to get the LANG env variable correct. This may happen i suppose if your backend process crashes out, maybe becuae of a corrupt file or the machine is having some sort of problem - it may be worth seeing what else is happening when this happens. If you are capturing the exception in your .net app you can add some further info regarding what processes are running, time date etc into your error log. Is your network card set to full duplex and the switch port it is connected to as well, i have had problems when comms have been in half duplex, and the connection is busy. -----Original Message----- From: owner-u2-us...@listserver.u2ug.org [mailto:owner-u2-us...@listserver.u2ug.org] On Behalf Of Glenn Batson Sent: 22 April 2009 02:17 To: u2-users@listserver.u2ug.org Subject: [U2] Need assistance replicating UniObjects.NET issue Does anyone have any insight into how to create the following error. Error Message: IBMU2.UODOTNET.UniXMLException: Unable to read data from th transport connection: An existing connection was forcibly closed by the re host.[IBM U2][UODOTNET - UNIRPC][ErrorCode=81009] The RPC failed[IBM U2][UODOTNET - UNICLIENT][ErrorCode=91] Please verify UniVerse or UniData Version. This feature may not be supported in older UniVerse or UniData version. UNIDATA 7.1.0 Windows 2003 I've tried killing the udapislave.exe process associated with the connection and then accessing the connection. I get a similar error but not this one. I've tried to sleep to long but noticed I we don't set the timeout property on the UniObject and the default is no timeout. So it just sits there waiting. I haven't tried unplugging the network cable yet or mimicking some network interruption. Any ideas would be greatly appreciated. Thanks, Glenn ------- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ ------- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ ------- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
