如何从Rails中重启Rails？

好的,所以我想在Rails中创建一个动作来重启自己.我做了一点搜索,发现:

http://snippets.dzone.com/posts/show/5002

这表示2个命令,一个停止,另一个重启.以下杀戮:

ps -a|grep "/usr/local/bin/ruby script/server"|grep -v "grep /usr"|cut -d " " -f1|xargs -n 1 kill -KILL $1

-HUP信号没有为我重新启动,所以我试图破坏上面的命令(调整使命令工作正常,我在Ubuntu下启动服务器):

ps -eaf|grep "ruby script/server"|grep -v grep|cut -d " " -f3|xargs -n 1 kill -KILL $1;script/server

这在我的环境中工作正常,所以我尝试设置一个动作来执行它:

def restart
  fork { exec "ps -eaf|grep \"ruby script/server\"|grep -v grep|cut -d \" \" -f3|xargs -n 1 kill -KILL $1;script/server" }
  redirect_to "/server_maintenance"
end

该操作可以很好地杀死服务器,但实际上并没有启动服务器备份:

=> Booting Mongrel
=> Rails 2.3.2 application starting on http://0.0.0.0:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server
Exiting
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/tcphack.rb:12:in `initialize_without_backlog': Address already in use - bind(2) (Errno::EADDRINUSE)
    from /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/tcphack.rb:12:in `initialize'
    from /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:93:in `new'
    from /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:93:in `initialize'
    from /usr/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/handler/mongrel.rb:10:in `new'
    from /usr/lib/ruby/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/handler/mongrel.rb:10:in `run'
    from /usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/commands/server.rb:111
    from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
    from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
    from script/server:3

当Mongrel似乎刚刚退出时,我不太明白为什么地址已经被使用了.

我发现了这个问题:

如何在不停止和启动Mongrel的情况下重启Mongrel下的Rails

但是信号不会导致我的环境重启,他们最终会杀死进程.

任何人对什么可行有任何想法？关于我的环境的一些注意事项:我从新版本的RubyGems和Mongrel安装了Rails.我使用脚本/服务器启动服务器,当然使用Mongrel.我在Ubuntu Hardy Heron上.