Gist to check ip responding with code 200

live_ip.rb

ips =["74.125.34.181",
      "74.125.34.126",
      "74.125.34.252",
      "74.125.34.247",
      "74.125.34.254"];
 
 def get_page(ip)
	uri = URI("http://#{ip}")
	begin
		http = Net::HTTP.new(uri.host, uri.port)
                request = Net::HTTP::Get.new(uri.request_uri)
                response = http.request(request)
                if response.code == '200' then
 	        	puts "responding ip::#{ip}" ;
		else
			puts "#{ip} not responsding";
		end
	rescue
		puts "#{ip} not responsding"
	end
 end
 
 threads = [];
 ips.each_with_index do |ip,i|
	threads << Thread.new{  get_page(ip) }
	# wait for 3 sec. so that we dont collapse under our own wt of threads.(applicable if ips list is too large)
	if(i%20 == 0) then
		puts "sleep::#{i}"
		sleep(3);
	end	
 end
 threads.map {|t| t.join }