To add to what was previously mentioned by Mihail, your scaling settings may very affect how many instances can spin up in response to traffic.
Using scaling elements <https://cloud.google.com/appengine/docs/python/config/appref#scaling_elements> in your app.yaml, one can limit the number of instances available. For example, basic_scaling requires one to specify a max_instances property. Also, manual_scaling requires one to specify a fixed number of instances. If you're using automatic_scaling, there should not be a limit imposed unless you've reached daily spending limits <https://cloud.google.com/appengine/pricing#spending_limit> that you may have set for your application. Barring the above exceptions, your application should scale to meet demand when set to automatic_scaling. What remains is to have enough traffic for App Engine to warrant spinning up new instances. Should you feel that your application is not scaling when receiving sufficient traffic, please provide your yaml scaling settings here along with some traffic screenshots from the Developers Console showing an excessive amount traffic that should trigger scaling. Should you have any additional questions on the subject, feel free to voice them here. On Wednesday, April 27, 2016 at 9:18:38 AM UTC-4, Anthony Shapley wrote: > > Hi, > > We have an app running, using Django - and for some reason AppEngine won't > ever the application on more than a single instance? We haven't set > anything that should limit this in the app.yaml file, so just wondered if > there is anything else we could have configured incorrectly that would > prevent AppEngine from load balancing properly? > > Ant > -- 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 https://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/5568c3bf-1295-408c-bb08-ab24194a1392%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
