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aspnet_wp crashes when web service runs long lasting task.

Hi,
I have a ASP.NET 2.0 web service, which runs beautifully when hosted in the
development server of VS2005 (out side of IIS) but crashes when hosted inside
IIS 5.1 or IIS 6.0 when it takes several minutes to process a request. On
some server, it will consistently crash after 3 minutes, others can take up
to 30' or longer.
However, It can happily process shorter requests to the same web method.

When aspnet_wp crashes, it logs an eventId 5000 with the error message
"EventType clr20r3, P1 aspnet_wp.exe, P2 2.0.50727.210, P3 45063b16, P4
system.web, P5 2.0.0.0, P6 45063b0f, P7 5d7, P8 47, P9
system.cannotun loadappdomain, P10 NIL."
Followed by eventId 1000 "aspnet_wp stopped unexpectedly"

I know that the default behaviour of ASP.NET 2.0 when the app has an
unhandled exception is to shut down the worker process. I have made sure that
all exceptions within my web service are handled by attaching an
ExceptionHandle r to AppDomain.Curre nt. I have also tried to change the
aspnet.config so that it ignores any unhandledexcept ion like it ASP.NEt1.x

It seems that this problem is directly related to a timing setting on IIS
and I have tried to increase all timing settings to a big number but this
doesnt change anything.

Any ideas are very welcome.

Cheers,
Bach

Feb 2 '07 #1
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