緩存memcache中的caches_action fragmens和文件系統中的資產

Question

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

我想解決一個問題where keys disappear from Memcachier，爲了做到這一點，我想確保只有我的caches_action中的內容纔會被緩存在memcache中。我希望我的資產（jpg等）可以緩存在其他地方。

我相信這是相同的問題this question但是當我做相同的，即加入

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

我production.rb，它並沒有真正似乎無所不能。

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 

緩存資產做工精細（獲得緩存新鮮的反應）和緩存的操作是這樣的：

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

還會在一個緩存項Rails緩存（雖然他們在一段時間後消失）。

我現在的問題是：如果可能，我該如何才能讓我的caches_action片段最終在我的Memcache中（而不是我的資產）？

一個額外的問題是，你是否在我的production.rb中看到任何不尋常的東西？

Answer 1

我用寶石「asset_sync」我所有的資產轉移出去Amamzon S3

詳見說明書here

你得到三大好處：

• 你的資產從亞馬遜提供這樣的頁面加載速度更快 用戶
• 你在Heroku上的彈塞尺寸較小，應該是更多 高性能
個
• 你的資產將不再是memecahce

我所有的財產每三個月花了我大約20cents主辦Amamzon