How to start/stop server

hi,
i’m a new user of ROR, and i find some probleme to manipulate threads.
so, i have two ROR app runing in m computer,the first is for exemple
Diaspora* and the second the app that im writing to administrate
Diaspora server.
so i want from the adminstration panel, start/stop Diaspora server.
i wrote this:

class AdministrationController < ApplicationController

def index

render :layout => 'test'

end

def statuts

io = IO.popen("lsof -i :1234 | awk '{print $2}'")
 output = io.read
 io.close

if output == ''
  flash[:notice] = 'server down'
else
  flash[:notice] = 'server up '
end
redirect_to :action => :index

end

def start_serv
@test= Thread.new do
io = IO.popen(“cd /home/delmed/diaspora/ && ./script/server”)
@output = io.read
io.close
end
sleep 5
self.statuts
flash[:notice] = 'server up ’
end

def kill_serv
io = IO.popen(“netstat -tanp | grep 1234 | awk ‘{print $7}’”)
@output = io.read
io.close

io = IO.popen("kill -9 #{@output[0..3]}")
output = io.read
io.close

io = IO.popen("netstat -tanp | grep 8080 | awk '{print $7}'")
@output = io.read
io.close

io = IO.popen("kill -9 #{@output[0..3]}")
output = io.read
io.close
self.statuts

end

end

like you see, the start_serv method create a thread to run the diaspora
server. but in the kill_serv (stop diaspora server) i cant recover this
thread to kill or stop.
what can i do please !!?

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