Getting various errors when calling Logon from TOracleSession

[nick88highline]

Hi,
I'm getting an assortment of errors (only one at a time) when calling LogOn from TOracleSession. This is occurring in a Delphi 6 webbroker application with DOA 4.1.1 running on Windows Server 2008 64-bit with IIS7 and 32-bit Oracle Client version 11.1.0. The Oracle 11g database is a cluster with two nodes running version 11.1.0.7. I have no issues connecting with SQLPLUS and these errors occur on two identical 64-bit webservers.
Here are the errors:

External exception C0000008

ORA-03135: connection lost contact
Process ID: 0
Session ID: 0 Serial number: 0

ORA-21500: internal error code, arguments: [kwfctac_1], [25408], [0], [0], [0], [0], [0], [0]

ORA-25408: can not safely replay call

As mentioned before only one error occurs at a time; it's like a random selection each time LogOn is called, although not everytime.
Any ideas?
Thanks
Nick

 

[Marco Kalter]

I think you will need to check the server log files to find out why the connection was lost. Perhaps the server process died, or a network error occurred.