问题
We're having a problem where the application pools restarts (and loses all sessions) when deleting a folder in a virtual directory. This is not ImageResizers fault, but ASP.NET. We cannot replicate the issue on a static web site.
I'm wondering if someone has resolved this issue? We're thinking about creating a separate web page just for ImageResizer and image content. Maybe there is a simpler way?
This solution did not work for us: http://www.aaronblake.co.uk/blog/2009/09/28/bug-fix-application-restarts-on-directory-delete-in-asp-net/
回答1:
IIS and ASP.NET - both - have independent FileSystemWatchers. If you disable these, the problem should go away.
See http://imageresizing.net/docs/howto/avoid-network-limit for more information.
While the article above mentions the problem from the perspective of a latent network-based storage, the problem can appear in other ways - such as upon directory deletion.
I also suggest avoiding deleting folders on ASP.NET websites; it's a painful goal, and likely to fail due to read locks. Goodnes, folder deletion rarely works on windows — even when it's not part of a web site being actively served to clients.
回答2:
It seems to be possible to use IIS application instead of Virtual directory, and use a different application pool for the image archive. I tried, and the problem was solved... this appool restarted instead, which didn't affect the web pool. Great success!
However, I don't think we will be doing this either. It seems as a IIS application needs it's own bin folder. I had to copy the image resizer DLLs here. I also had to write another global.asax for auto 404 images in Application_Start. It works... I just don't want the image directory to have a lot of code in it. It is synced from a third party.
来源：https://stackoverflow.com/questions/28875683/imageresizer-restarts-application-pool