# File lib/mongo/error/no_server_available.rb, line 34
      def initialize(server_selector, cluster=nil, msg=nil)
        msg ||= "No #{server_selector.name} server is available in cluster: #{cluster.summary} " +
                "with timeout=#{server_selector.server_selection_timeout}, " +
                "LT=#{server_selector.local_threshold}"

        super(msg)
      end