How to know who kills my threads

Question

I got a thread that is just banishing.. i\'d like to know who is killing my thread and why.

It occurs to me my thread is being killed by the OS, but i\'d like to

Answer 1

You can try to increase executionTimeout value of configuration\system.web\httpRuntime in web.config (default value is 110 seconds in .NET 4.0 and 90 in corresponds to http://msdn.microsoft.com/en-us/library/e1f13641.aspx). You can try to change it dynamically Server.ScriptTimeout = 300 (see http://www.beansoftware.com/ASP.NET-Tutorials/Long-Operations.aspx). It this parameter will not helps, then I think you have a problem other as thread recycling from IIS. How you can see default value of this parameter is much less as typical live time of your thread. I think, that your problem has another nature, but to be sure...

Why you set apartment state for the thread? Which COM objects you use in the working thread? Do you have an unmanaged code which do the most of work where you can also insert some code? I think you should have more information about SomethingForALongLongTime to be able to solve the problem.

And one more a little suggestion. Could you insert a line of code after calling SomethingForALongLongTime(); to be sure, that SomethingForALongLongTime not end without an exception?

UPDATED: To be absolutely sure that your thread will be not killed by IIS, you can try to create a process which do SomethingForALongLongTime(); instead of using threads.