When GAE moves an application from one datacenter to another, is it guaranteed that all requests switch at the same time and immediately get routed to instances in the new datacenter? Or is there any possibility that some requests still hit the instances in the old one?
I'm especially interested concerning memcache. Memcache starts cleared after such application move, but if instances in the new datacenter start processing requests and store results in memcache, it could create a short lived split brain situation if instances in the old datacenter still receive requests and assume that their memcache results are still up to date. Could someone from Google please explain how such application move is performed? Thanks Marcel -- 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. For more options, visit https://groups.google.com/groups/opt_out.
