Google AppEngine Bulkloader High Replication Data Delay

Question

In the AppEngine Bulkloader Documentation, they state "If you attempt to copy from a High Replication datastore, you'll see a high_replication_warning error in the Admin Console, and the downloaded data might not include recently saved entities." Any idea how recent they mean by "recently saved entities"?

Answer 1

This is a consequence of eventual consistency. Recently saved entities includes anything that wouldn't show up in the query the bulkloader uses. There isn't a firm time horizon on this, but it's usually fairly short (a few seconds).