如何增加在IIS7中运行的Web服务的超时时间？

Question

I have a webservice (.asmx) method that takes several minutes to complete. At the client I have set the timeout to be infinte:

   services.Timeout = -1;

How can I do the same at the server?

I have tried adding the following to my web.config

<system.web>
<httpRuntime executionTimeout="1200"/>

MSDN documentation says that this should increase the timeout by seconds. The time out is occurring quicker than 20 minutes.

Can someone help?

Thanks!

Answer 1

Tha application pool recycles every 20 minutes by default.

Honestly, if you have a request that takes that long, you should investigate other approaches. If you're building a file or a report that takes forever, consider building it in the background in a windows service, and emailing the user when it's ready.

A better question might be: what on earth is taking that long, and how can you optimize it?

I'll update my answer if you provide more information.

Answer 2

You also should change:

<system.web>
    <sessionState timeout="..." />
</system.web>

And also configure the application pool timeout, as David Lively said. This can be done in IIS manager.