Prevent worker process from recycling when foreground thread is executing.

[Marcel van den Hof]

Dear all,

Is there any way to prevent the ASP.NET worker process from recycling
the worker process when a thread is being executed on the foreground
(IsBackground=false).

I'd also like to know if there a way for a foreground thread to detect
if the worker process is being recycled?

It seems that when a worker process recycles (under IIS 5.0) a thread
simply gets killed and there is no way for the thread to find that
out.

Thanks for your help everyone.

Kind regards,

Marcel van den Hof

 

[Steve C. Orr [MVP, MCSD]]

I don't have an answer for you other than saying that this is a reason I
prefer not to fire off background threads in ASP.NET.
If I have background tasks to do (that take a significant amount of time) I
prefer to implement them inside a more reliable Windows Service.

Here's more info on Windows Services:
http://msdn.microsoft.com/library/d.../vbconintroductiontontserviceapplications.asp

 

[Marcel van den Hof]

I appreciate your response Steven.

I completely understand that using a Windows Service would not cause
threads to be terminated unexpectedly.

However I am still interested in understanding the precise behaviour
of how the worker process recycles a thread with the IsBackground
property set to true. (and how to prevent this or pick this up in the
thread)

Thanks for your input.

Kind regards,

Marcel van den Hof

 

[Bruce Barker]

when a recyle happens, the asp.net worker process actually exits, thus
killing all threads and releasing all memory (managed or unmanged). the
point of a recycle is to recover from runaway thread or memory leaks.

-- bruce (sqlwork.com)