缓存memcache中的caches_action fragmens和文件系统中的资产

Question

在Heroku，Dalli gem和Memcachier上使用Rails 3.1.1。

我想解决一个问题where keys disappear from Memcachier，为了做到这一点，我想确保只有我的caches_action中的内容才会被缓存在memcache中。我希望我的资产（jpg等）可以缓存在其他地方。

我相信这是相同的问题this question但是当我做相同的，即加入

config.action_dispatch.rack_cache = { 
    :metastore => Dalli::Client.new, 
    :entitystore => 'file:tmp/cache/rack/body', 
    :allow_reload => false 
} 

我production.rb，它并没有真正似乎无所不能。

我production.rb全：

MyDemoApp::Application.configure do 
    # Settings specified here will take precedence over those in config/application.rb 

    # Code is not reloaded between requests 
    config.cache_classes = true 

    # Full error reports are disabled and caching is turned on 
    config.consider_all_requests_local  = false 
    config.action_controller.perform_caching = true 

    # Disable Rails's static asset server (Apache or nginx will already do this) 
    config.serve_static_assets = true 

    # Compress JavaScripts and CSS 
    config.assets.compress = true 

    # Don't fallback to assets pipeline if a precompiled asset is missed 
    config.assets.compile = true 

    # Generate digests for assets URLs 
    config.assets.digest = true 

    # Defaults to Rails.root.join("public/assets") 
    # config.assets.manifest = YOUR_PATH 

    # Specifies the header that your server uses for sending files 
    # config.action_dispatch.x_sendfile_header = "X-Sendfile" # for apache 
    # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for nginx 

    # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies. 
    # config.force_ssl = true 

    # See everything in the log (default is :info) 
    # config.log_level = :debug 

    # Prepend all log lines with the following tags 
    # config.log_tags = [ :subdomain, :uuid ] 

    # Use a different logger for distributed setups 
    # config.logger = ActiveSupport::TaggedLogging.new(SyslogLogger.new) 

    # Use a different cache store in production 
    config.cache_store = :dalli_store 

    config.action_dispatch.rack_cache = { 
    :metastore => Dalli::Client.new, 
    :entitystore => 'file:tmp/cache/rack/body', 
    :allow_reload => false 
    } 

    # Set expire header of 30 days for static files 
    config.static_cache_control = "public, max-age=2592000" 

    # Enable serving of images, stylesheets, and JavaScripts from an asset server 
    # config.action_controller.asset_host = "http://assets.example.com" 

    # Precompile additional assets (application.js, application.css, and all non-JS/CSS are already added) 
    # config.assets.precompile += %w(search.js) 

    # Disable delivery errors, bad email addresses will be ignored 
    # config.action_mailer.raise_delivery_errors = false 

    # Enable threaded mode 
    # config.threadsafe! 

    # Enable locale fallbacks for I18n (makes lookups for any locale fall back to 
    # the I18n.default_locale when a translation can not be found) 
    config.i18n.fallbacks = true 

    # Send deprecation notices to registered listeners 
    config.active_support.deprecation = :notify 
end 

缓存资产做工精细（获得缓存新鲜的反应）和缓存的操作是这样的：

caches_action :show, :layout => false, :expires_in => 3.days 

还会在一个缓存项Rails缓存（虽然他们在一段时间后消失）。

我现在的问题是：如果可能，我该如何才能让我的caches_action片段最终在我的Memcache中（而不是我的资产）？

一个额外的问题是，你是否在我的production.rb中看到任何不寻常的东西？

Answer 1

我用宝石“asset_sync”我所有的资产转移出去Amamzon S3

详见说明书here

你得到三大好处：

• 你的资产从亚马逊提供这样的页面加载速度更快 用户
• 你在Heroku上的弹塞尺寸较小，应该是更多 高性能
个
• 你的资产将不再是memecahce

我所有的财产每三个月花了我大约20cents主办Amamzon