We have a program written in ITK that allows us to do mass data loading to Teamcenter 10.1.5.
In summary a .sh script is launched, it calls myTool (ITK program) which loads the data to Teamcenter from a file. Depending on the size of the file you can reach durations of more than 30 hours.
On the unix version we encounter a problem that is characterized by a shutdown of UGS service. Do you know any reason (timeout, log limits etc) that could explain why the Teamcenter services are stopped? Unless I am mistaken, there is no time limit for the Teamcenter user session.