anchor.diff:    ok = pg2:join(workers, Pid).
   
   workers_members() ->
  -  case pg2:get_memenbers(workers) of
  +  case pg2:get_members(workers) of
       {error, {no_such_group, workers}} -> [];
       Pids                              -> Pids
     end.
  
positive.code:   Daemon.
  
  signal_terminate(Daemon) ->
    ssh:stop_listen(Daemon),
    % Send terminate signal
    nodes_pool ! {manage, self(), terminate},
    ok.
  
negative.code:   true = hostname_validation(),
    prefixed("start server"),
    process_flag(trap_exit, true),
    true = register(clusterccd, self()),
    yes  = global:register_name(clusterccd, self()),
    ok   = workers_create(),
  
    prefixed("node name as ~s", [node()]),
  
  