memcached +dalli

安装memcached   sudo apt-get install memcached

安装后，系统默认会开启一个memcached 服务， 用sudo kill 关闭默认开启的memcached服务进程

开启 memcached服务 memcached  start -m  1024 -l 127.0.0.1 -p 11211

安装Dalli  sudo gem install Dalli

  config/environments/produation.rb下配置

  config.cache_store = :dalli_store, 'localhost:11322', { :namespace => "rails-xxx",
                                                          :expires_in => 1.day,
                                                          :compress => true }

配置OK

查看memcached 状态 telnet 127.0.0.1 11211后，在输入stats

 

添加Action缓存，controller中使用，caches_action： action_name

清除Action缓存，controller中使用，expire_action :controller => :topn, :action => [:periphery], :format => :json