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Background: I’ve deployed an MVC3 application to 2 Azure Web Role instances, but I’m confused as to how I can test out the possibility of one of these instances failing.
Is there a way that I can test to ensure that my Web Role code works seamlessly when one of my instances is taken offline?
Can I manually stop one of them? Or somehow configure the load balancer to force all traffic to one of the servers?
Thanks!
If you have RDP access enabled to your instances you can very easily remove one or more instance out from LoadBalancer even when the instance is running healthy without writing any line of code. You just need to RDP to your instance and then use PowerShell scripts to take the instance off from loadbalancer. In my following blog I have described the exact procedure:
http://blogs.msdn.com/b/avkashchauhan/archive/2012/01/27/windows-azure-troubleshooting-taking-specific-windows-azure-instance-offline.aspx
The above details also help to run load testing by removing N instances from total M instances .