问题
I want to use all the data in my python app engine memcache. I do not know the keys in advance.
How do I go about getting all data?
回答1:
The only read functions available on memcache are:
get(key, namespace=None)
get_multi(keys, key_prefix='', namespace=None)
As you can see, to get data from memcache you must provide one or more keys.
回答2:
I am using a 'well known key' called "config" where I store a list of all other keys and use that to enumerate the rest of the items.
回答3:
as in comments above, I guess I could stick all data in a single memcache entry with a known key.
Still for non-static data there are scenarios where it would be useful.
来源：https://stackoverflow.com/questions/3611830/how-do-i-return-all-memcached-values-in-google-app-engine