Wcf webservice execution timeout

How can I increase timeout for the wcf web service operation as my wcf service may take more than 5-10 hours to execute 开发者_如何学运维function and update inside database?

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Redesign your WCF service so that instead of providing a service operation spanning the entire 5-10 hour process, it exposes an operation which starts the long-running process asynchronously and then returns immediately.

You can add further service operations to check the status of the long running process, or cancel it, etc.