You can delete your app, but App Engine provides safety measures to prevent inadvertent deletion. To delete your app, you first disable it, which stops all serving requests but leaves your data and state alone. Once your app is disabled, you can leave it that way, or you can delete it. While your app is disabled, you can still use the Administration Console to manage it. If you delete it, your data and state are destroyed and can't be restored. Even after your application is deleted, its appid is reserved.
To delete your app, go to the Administration Console and click Application Settings on the left side under Administration. Then, click Disable Application, and on the next screen, Disable Application Now. This disables your app. While your app is disabled, it won't serve requests. To continue with deleting your app, click Request Permanent Deletion. After a mandatory 72-hour waiting period, your app will be deleted. To stop the pending deletion, go back to the Application Console, click Application Settings, then Manage Disabled Status, and then Revert Deletion Request.
If billing is enabled for your app, you must disable billing before you can delete the app. See the Billing FAQ for general information about billing.
Any of an app's developers can request deletion of the app, but all developers are notified by email and any developer can revert the request for deletion. If an app is deleted, the developer who requested deletion (who is not necessarily the app's creator) receives a "credit" and can then create one additional app. All developer accounts start with the ability to create 10 apps.
The Administration Console includes a page that shows you statistics for entities in your app's Datastore. To see this page, click Statistics on the left side, under Datastore. The Statistics page displays your data in various ways:
By default, the pie charts display statistics for all entities. You can restrict the pie charts to a particular entity kind by choosing from the drop-down menu. The "Metadata" property type represents space consumed by storing properties inside an entry that is not used by the properties directly. The "Datastore Stats" entity, if any, shows the space consumed by the statistics data itself in your datastore.
The statistics data is stored in your app's datastore. To make sure there's room for your app's data, Google App Engine will only store statistics if they consume less than 1 megabyte; otherwise, you won't see any statistics. If your app's stats go over the 1 megabyte limit, any previously reported statistics will remain. There's no way to tell if this has happened to your app, but if you have a lot of data and you're not seeing any statistics, or any updated statistics, this could be the problem. This problem will be addressed in a future version of App Engine.
The space consumed by the statistics data increases in proportion to the number of different entity kinds and property types used by your app. The more different entities and properties used by your app, the more likely you are to reach the 1 megabyte limit.
For information on accessing datastore statistics programatically, see the Python and Java documentation on that subject.
|
