はてなブックマーク - Choosing a Datastore (Python) - Google App Engine - Google Code
https://b.hatena.ne.jp/entry/code.google.com/intl/ja-JP/appengine/docs/python/datastore/hr/
Selecting 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 ...bufferings
https://b.hatena.ne.jp/bufferings/20110106#bookmark-27987114
HRD2011-01-05T23:28:26Zgae