Passenger 下机架上的 Sinatra 返回 0 字节页面
我正在尝试编写一个将在共享 Passenger 服务器上运行的 Sinatra 应用程序。现在，我很高兴能得到一个“hello world”，但有些事情不太正常。我有：
config.ru
require 'vendor/sinatra-lib/sinatra.rb'
set :environment, :production
disable :run
require 'myapp.rb'
run Sinatra::Application
myapp.rb
get '/' do
"Hello world!"
end
当然，sinatra 所需的所有支持库都位于 /vendor/sinatra-lib 下。我可以在我的本地机器上加载这个精确的负载，并且它运行得像冠军一样。但是，在远程计算机上，我尝试访问的任何 URL 都会收到 0 字节响应。请注意，我有一个 /public 目录，并且我可以成功查看其中的页面，因此我猜 Rack 仍在响应。另外，我可以毫无问题地运行基本的 Rack 应用程序，因此必须正确配置 Rack（至少对于运行 Rack 应用程序而言是正确的）。
此时我唯一能想到的就是检查远程服务器上Rack的版本等。我无法完全控制该盒子，因此我实际上没有日志输出可供共享。如果它很重要的话，我可以尝试追查它，但我希望有人会突然发现一些东西。
I'm trying to write a Sinatra app that will run on a shared Passenger server. For now, I'd be happy just getting a "hello world", but something isn't working quite right. I have:
config.ru
require 'vendor/sinatra-lib/sinatra.rb'
set :environment, :production
disable :run
require 'myapp.rb'
run Sinatra::Application
myapp.rb
get '/' do
"Hello world!"
end
and of course all the support libs I need for sinatra are under /vendor/sinatra-lib. I can rackup this exact load on my local machine, and it runs like a champ. However, on the remote machine, I get 0-byte responses for any URL I try to visit. Note that I have a /public directory, and I can view pages out of that successfully, so I guess Rack is still responding. Also, I can run a basic Rack app without any problems, so Rack must be configured correctly (at least, correctly for running Rack apps).
At this point, the only thing I can think of is to check the version of Rack, etc, on the remote server. I don't have full control over the box, so I don't really have log output to share. I can try to chase it down, if it's important, but I'm hoping something will jump out at somebody.
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我认为问题是其他 sinatra 文件不在加载目录中。尝试将
vendor/sinatra-lib重命名为vendor/sinatra，如果仍然不起作用，请尝试将其添加到config 的顶部。 ru，而不是require 'vendor/...'一点旁注：您不需要将文件扩展名 (.rb) 传递给
require，因此您可以使用require 'myapp'而不是require 'myapp.rb'。I think the problem is that the other sinatra files isn't in the load dir. Try to rename
vendor/sinatra-libintovendor/sinatra, and if it still doesn't work, try to add this in the top of yourconfig.ru, in stead ofrequire 'vendor/...'A little side note: You are not required to pass the file extension (.rb) to
require, so you could dorequire 'myapp'instead ofrequire 'myapp.rb'.感谢大家的参与，结果发现是一个依赖性问题——我部署到的服务器运行的 Rack 版本太旧，无法支持 Sinatra。不过，还有很多其他值得思考的好东西。
Thank you all for playing, turned out to be a dependency issue -- the server I was deployed to was running a version of Rack that was too old to support Sinatra. Lots of good other stuff to think about, though.