From: Uwe Kubosch <uwe@...>
Date: 2008-02-02T07:21:04+09:00
Subject: Child processes live after parent process is killed

Hi all!

I have a Rails app that starts a child process with 

  IO.popen 'script/backgroundrb' do |io|
    loop do
      output = io.gets
      break if output.nil?
      print output
    end
  end

I would expect the child process to die when the Rails app exits or is
killed.  This however does not happen.  I do this on Linux.

Can anybody explain to me why child processes continue to live after
their parent process has ended?

I realize this is Linux specific, so feel free to redirect me to
relevant documentation.  Also if you know how this works on w$ndoze,
please share.

Any reply is much appreciated.


Uwe Kubosch
http://kubosch.no/
Norway