id2_util.erl

ping_any_master(AllNodes) ->
  error_logger:info_msg("~nAttempting to connect to master via: ~p~n", [AllNodes]), 
  [N|RN] = AllNodes,
  ping_any_master(N, RN, AllNodes).

ping_any_master(N, [], AllNodes) ->
  ping_any_master(N, AllNodes, AllNodes);
ping_any_master(N, RN, AllNodes) ->
  case net_adm:ping(N) of
    pong ->
      error_logger:info_msg("~nJoined cloud using candidate ~p.~n", [N]),
      timer:sleep(?SLEEP_CYCLE),
      ok;
    pang ->
      error_logger:info_msg("~nCould not reach master candidate ~p. Trying next in ~p~n", [N, ?SLEEP_CYCLE]),
      timer:sleep(?SLEEP_CYCLE),
      [N2|RN2] = RN,
      ping_any_master(N2, RN2, AllNodes)
  end.