How much memory of Memcache is available to a Google App Engine account?

Question

Google App Engine has some information about Memcache limits:

• http://code.google.com/appengine/docs/quotas.html#Memcache
• http://code.google.com/appengine/docs/python/memcache/overview.html#Quotas_and_Limits

However, total allowed size of RAM/memory store for a single application is not specified. It's known that no objects above 1MB is allowed. Do you have information?

Answer 1

The amount of memcache capacity your app has isn't fixed, and may vary depending on the traffic to your app and how it uses memcache.

Answer 2

As of November 2013, App Engine offers dedicated memcache which guarantees a specific amount of memcache RAM. You can purchase between 1 and 20 GB of dedicated cache. More than 20 GB is available upon request.

The shared memcache RAM available to an application still varies based on multiple factors.