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.NET Forum / .NET Framework / CLR / October 2004AppDomain Unload
Hello, Is there a way that an AppDomain can be forced to be unloaded? AppDomain.Unload often throws an exception because a thread internal to the CLR/ Framework is still running and can't be stopped. Is there a way to force unloading of the AppDomain or kill this thread before attempting an unload? Thanks, Ken The only threads that ought to cause this sort of problem are threads that are executing in unmanaged code (e.g. via interop) - all managed threads should be able to be unwound to the boundary of the appdomain so it can unload. I don't know of any mechanism you can use to force a thread executing in unmaged code to abort. > Hello, > Is there a way that an AppDomain can be forced to be unloaded? [quoted text clipped - 5 lines] > Thanks, > Ken I logged all the thread ID's and the thread that seems to not get unwound is actually just a managed thread on whicha client is calling a method on a CAO. My application has a bunch of remotable objects that various clients are connected to and making call while I am trying to Unload the AppDomain containing these remotable objects. I am expecting that at this stage all my clients will get forcibly disconnected and get exceptions. However the domain sometimes does not get unloaded in this case. Ken. It seems that these threads that refuse to exist are created by .net remoting using the ThreadPool class that seems to use the OS provided Thread Pool internally. I suppose this would make these Unmanaged threads. However in any case I do want to Unload this Application Domain. Is there a way to wait for these threads to exit? Or ask the Thread Pool to kill its threads? Ken. I don't believe there's any mechanism to force that behavior in the current runtime. You could try spawning a new process and then kill the entire process. > It seems that these threads that refuse to exist are created by .net > remoting using the ThreadPool class that seems to use the OS provided [quoted text clipped - 5 lines] > > Ken. Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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