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On Monday, April 13, 2015, Ray Sun <xiaoquqi at gmail.com> wrote:

> Stackers,
> I have found there are two parts can set memcache in keystone.conf of Juno
> release. I am not quite sure if they are duplicated or any difference?
>
> Thanks.
>
> [token]
> driver = keystone.token.backends.memcache.Token
> caching = True
>
>
The token settings in "driver" are meant for storing the actual tokens.
This is a persistence backend (similar to SQL).



> [cache]
> enabled = True
> backend = dogpile.cache.memcached
> backend_argument = url:localhost:11211
>
>
The [cache] section is specifying the information that is used to cache
data from all over keystone (users, groups, domains, assignments, etc).
Depending in the version of keystone different parts of keystone have
caching capabilities. The documentation for the given release should
indicate if a given system (e.g. Identity) has caching capabilities.

>
>
> Best Regards
> -- Ray
>
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