Choosing a Datastore (Python) - Google App Engine - Google CodeSelecting a Datastore The Master/Slave Datastore is the default for all new applications. Only new apps can enroll in High Replication. If you would like to to use High Replication for an existing app, simply create a new application and migrate the existing application. The following sections describe in detail how to select High Replication for your application. For a New Application When you cr
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