Not associated with google, also not an expert on ndb As far as I know key groups are related with consistency, in my opinion, you shouldn't put article's and author's in the same group, there is a 1/s write speed limit on entity groups, if you put them in the same entity group, you could hit this limit more easily
You don't even have to use referenceproperty's - I would just put the author key in an article StringProperty named "author" and query for it, if I were you -- 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 google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at http://groups.google.com/group/google-appengine. For more options, visit https://groups.google.com/d/optout.
