为什么`memcached_servers`地址前面没有`http://`?

Why the `memcached_servers ` do not have `http://` in front of the address?

/etc/glance/glance-api.conf中,为什么memcached_servers地址前面没有http://,你看auth_uriauth_url都有.

[keystone_authtoken] 
#... 
auth_uri  =  http:// controller:5000 
auth_url  =  http:// controller:35357 
memcached_servers  =  controller:11211 
auth_type  =  password 
project_domain_name  =  default 
user_domain_name  =  default 
project_name  =  service 
username  =  glance 
password  =  GLANCE_PASS

大概是因为他们不通过 h​​ttp 进行通信?

https://github.com/memcached/memcached/blob/master/doc/protocol.txt

Memcache 似乎通过 TCP 上的自定义协议进行通信。

https://github.com/memcached/memcached/wiki/BinaryProtocolRevamped