does iis restart project if any dll changes

[mustafac]

Hi,

i am newbie to iis.

I have an application which uses class libraries hosted on iis 5.1.
Now, while my application running if i change any dlls and copy them to
server's relevant virtual directory whether IIS restarts complete
project or do i have to restart iis manually?

Thanks in advance.

/mc.

 

[Juan T. Llibre]

No, you don't have to restart IIS manually.

ASP.NET will detect if your dll/assembly was modified,
and will restart your ASP.NET application for you.

 

[Marina]

IIS will not restart, nor should you restart it.

The asp.net application will restart, and it will do it on its own.

 

[mustafac]

First thanks for the kind reply.

ok, you mean asp.net detects any change over my dlls but how it handles
this mechanism.

If any dll changes whether it reloads all the dlls of application or
it just replaces last modified dlls. Can you suggest me any article
or something about how iis handles dynamic dll change?

Thanks in advance.

/mc.

 

[Bruce Barker]

asp.net uses a filewatcher (requires ntfs file system to work), to detect
file changes. if any of the files used by the application are modified

1) recompiles the site
2) load a new appdomain
3) stops sending requests to the old appdomain
4) unloads the old appdomain. when all pending requests complete

-- bruce (sqlwork.com)

 

[Juan T. Llibre]

Bruce explained what happens :

ASP.NET :

1) recompiles the site
2) load a new appdomain
3) stops sending requests to the old appdomain
4) unloads the old appdomain. when all pending requests complete

I'd only add a

5) starts sending new requests to the recompiled application.

 

[mustafac]

ok bruce,

you mean :asp.net uses a filewatcher (requires ntfs file system to
work)

Is it a daemon thread? if it is can i set its check interval if yes
how?

on other hand lets say i have another application which is hosted on
iis 5.1 and uses .Net remoting with its class libraries. if i update
any of my class libraries hosted on iis how iis works here?

thanks in advance.

 

[Scott Allen]

ok bruce,

you mean :asp.net uses a filewatcher (requires ntfs file system to
work)

No, it doesn't require NTFS to work.

Is it a daemon thread? if it is can i set its check interval if yes
how?

I don't know of a way to set the interval. The FileSystemWatcher uses
notification APIs in Windows that don't require a daemon thread.