How to migrate an app to HRD and keep its application id?

[Fred Janon]

Hi,

I created an application that I never used, now I am being asked to migrate it to HRD.

Datastore Replication Options:

Master/Slave Replication ^Deprecated!

I saw that the migrated application must have a new application id. Is there a way I can keep the original application id or reset the application parameters so it keeps the app id and get the HRD storage from scratch?

Thanks

Fred

[Andrew Mackenzie]

After wanting to do the same I found no way to do so, and believe this is impossible.

My best suggestion: use your own DNS domain, and map to myappid.appspot.com, and get your users to use that.

After migration, change DNS to map to newappid.appspot.com

Andrew

[Dan Holevoet]

The final step of the HRD migration will alias your old app ID to the new one. A visitor to foo.appspot.com will see the behavior of foo-hrd.appspot.com (or whatever you called your HRD app). If your only concern is user-facing behavior, it's not an issue.

Thanks,
Dan

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Dan Holevoet

Google Developer Relations

[Andrew Mackenzie]

Dan, is that a new feature?

When we did our migration I don't recall seeing it, and we had both running in parallel for some time...

Andrew

[Fred Janon]

Thanks Dan. I wanted to save an app (against the total count of 10), but reading some other posts, I realize that's probably a moo point.

Fred

[Barry Hunter]

Once you've preformed the migration - and setup the alias. You can delete the old M/S application totally. You can just disable it too (disabled apps dont count towards your total AFAIK), but if it never had an app in it, no need to keep it. 

The old app doesnt need to exist for the Alias to work. (ie its like a second name for the new App, rather than a pointer from old to new)