Hello App Engine folks, In the upcoming 1.8.1 release, the Datastore default auto ID policy in production will switch to scattered IDs to improve performance. This change will take effect for all versions of your app uploaded with the 1.8.1 SDK.
You can preview the new behavior in the dev server, where scattered auto IDs are the default. These IDs are large, well-distributed integers, but are guaranteed to be small enough to be completely represented as 64-bit floats. If you still need legacy ids for some entities (e.g. because you want smaller numbers for user-facing ids), we recommend you use the allocateIds() API, which will continue to behave as before. You can also override the default auto id policy by setting the new auto_id_policy option in your app.yaml/appengine-web.xml to legacy, but please note that this option will be deprecated in a future release and will eventually be removed. If you have any questions don't hesitate to follow-up here or drop me a line directly. -- Chris Product Manager, Google App Engine -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/google-appengine?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
