# File lib/redis/hash_ring.rb, line 24
    def add_node(node)
      @nodes << node
      @replicas.times do |i|
        key = Zlib.crc32("#{node.id}:#{i}")
        raise "Node ID collision" if @ring.has_key?(key)
        @ring[key] = node
        @sorted_keys << key
      end
      @sorted_keys.sort!
    end