anchor.diff:  handle_message({receive_state, PeerMembership},
                  #state{pending=Pending,
                         membership=Membership,
  +                      member_parallelism=MemberParallelism,
                         connections=Connections0}=State) ->
       case ?SET:equal(PeerMembership, Membership) of
           true ->
  
positive.code:     lists:keydelete(node(), 1, Members).
  
  %% @private
  establish_connections(Pending, Membership, Connections) ->
      %% Reconnect disconnected members and members waiting to join.
      Members = members(Membership),
      Peers = Members ++ Pending,
  
negative.code:             delete_state_from_disk(),
  
              %% Shutdown; connections terminated on shutdown.
              {stop, normal, State#state{membership=Membership,
                                         member_parallelism=MemberParallelism}};
          _ ->
              {reply, ok, State}
      end;
  