I am upgrading a site collection from SP 2010 to SP 2013. It's rather large about +- 100gb. I performed the same steps on smaller site collections before and all worked fine. Now I suspect the "thread has been aborted" is caused by following ULS log
Application error when access /_layouts/siteupgrade.aspx, Error=Request timed out.
So my first instinct was increase the timeout value in my web.config however the execution timeout parameters are all similar to following
< httpRuntime maxRequestLength="2097151" executionTimeout="3600" />
which is an hour and the error does not take an hour to take place.
Is this the correct parameter for this problem or am I searching down the wrong path here?