Rails 服务大文件 [英] Rails serving large files

问题描述

我正在开发一个仅向登录用户提供大型视频的应用程序.

I'm developing an application serving large videos only to logged users.

为了保持这些视频的私密性，我将它们放在 Rails 项目中的私有文件夹中，让 Rails 为它们提供服务，而不是使用公共文件夹并排除来自 apache 的请求(以避免直接链接到它们).

To keep these videos private i put them in a private folder inside Rails project and let Rails serve them, instead of using the public folder and excluding requests from apache (to avoid direct linking to them).

我在控制器中的操作如下所示:

My action in the controller looks like this:

def video
      respond_to do |format|
        format.mp4{
         send_file File.join([Rails.root, "private/videos", @lesson.link_video1 + ".mp4"]), 
      :disposition => :inline, :stream => true
        }
      end
  end

一切正常，但只是小文件，一旦我尝试使用真实文件，我就会收到错误:

Everything works perfectly, but just with small files, as soon as i try with real files i receive the error:

NoMemoryError (failed to allocate memory)

我在某处读到将 send_file 用于大文件不是一个好习惯，但是使用另一种方法让 apache 为文件提供服务时，我在向移动 Apple 设备提供文件时遇到了问题，因为它们没有发送HTTP_REFERER.

I read somewhere that is not a good practice to use send_file for large files, but using the other approach, to let apache serve the files, i had an issue serving files to mobile apple devices, as they're not sending the HTTP_REFERER.

你知道这个内存限制有多小吗?我的视频从 400MB 到 2GB(试图减少它们).

Do you have any idea on how small is this memory limit? My videos are from 400MB to 2GB (trying to reduce them).

我在这里发现的唯一问题是没有答案从 rails 中的 assets 文件夹提供大型媒体文件

The only question i found here is without an answer serving large media files from the assets folder in rails

推荐答案

我设法在 Apache 上激活了 X-Sendfile，而不是让 Rails 来处理大文件.与 Capistrano 合作，我找到了一个很好的解决方案.这里解释了 Capistrano &X-发送文件

I managed to activate X-Sendfile on Apache instead of letting Rails to serve large files. Working with Capistrano i found a good solution. Here is explained how Capistrano & X-Sendfile

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