Ruby Net:SSH控制大师? [英] Ruby Net:SSH Control Master?

问题描述

我目前有一个Ruby(Rails)应用程序，该应用程序需要建立许多短的SSH连接.使用Ruby Net :: SSH库可以很好地工作，除了每次我要发出命令时该应用必须登录并协商密钥，这太慢了.

I currently have a Ruby (Rails) application that needs to make a lot of short SSH connections. This works fine using the Ruby Net::SSH library, except that the app has to log in and negotiate keys every time I want to make a command, which is too slow.

是否可以通过Ruby Net :: SSH启用Control Master?在命令行上进行测试时，由于连接已经打开(协商了密钥等)，因此使登录(在第一个登录之后)非常快.

Is there a way to enable Control Master with Ruby Net::SSH? In testing on the command line, this makes logins (after the first one) very fast, since the connection is already open (keys are negotiated etc.).

如果无法使用Net :: SSH做到这一点，那么有人可以建议一个可以做到这一点的替代库吗?

If there is no way to do this with Net::SSH, can anybody suggest an alternative library that could do it?

我想这必须是一个普遍的要求，所以希望有人可以提供帮助.

I imagine this must be a common requirement, so hopefully someone can help.

谢谢！

推荐答案

为什么不仅仅保持连接打开? ssh调用是虚拟的，因为我不知道api，但它达到了它的目的:

Why not just keeping the connection open ? The ssh calls are dummy as I don't know the api but it serves its purpose:

def ssh_execute(user, command)
  Thread.current[:user_connections] ||= {}

  unless Thread.current[:user_connections][user.id]
    Thread.current[:user_connections][user.id] = Net::SSH.connect(...)
  end

  ssh = Thread.current[:user_connections][user.id]
  ssh.run_command(command)
end

每个线程将获得一个ssh连接，或者如果将应用程序与乘客一起部署，则每个进程将具有一个连接并将重用它.

You will get one ssh connection per thread or if your application is deployed with passenger each process will have one connection and will reuse it.

是您想要的吗?

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