consistent_hashr.rb

require 'rubygems'
require 'consistent_hashr'

servers = {:s1 => "s1", :s2 => "s2", :s3 => "s3", :s4 => "s4", :s5 => "s5", :s6 => "s6"}
servers.each do |n, s|
  ConsistentHashr.add_server(n,s)
end

keys = []
1000.times do |idx|
  keys << rand(100000).to_s
end

before = keys.map() { |k|  ConsistentHashr.get(k)}
    
ConsistentHashr.add_server(:s7, "s7")
    
after = keys.map() { |k|  ConsistentHashr.get(k)}

diff = before.zip(after).find_all {|a| a[0] == a[1] }.size

puts diff