What would happen on the current running application if you are going to update the WAR file in Google App Engine? Will Google App Engine automatically stop the service of your application while new WAR file is being uploaded?
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What would happen on the current running application if you are going to update the WAR file in Google App Engine? Will Google App Engine automatically stop the service of your application while new WAR file is being uploaded?
Thanks!
Deploying a new version of your app causes App Engine to spin up an entirely new set of VMs with your new code, transfer traffic from the old VMs to the new ones, then shutdown the old ones (presuming you’re deploying to the default version). At no point is your service down – traffic transitions seamlessly from the old instance to the new one.