docs: private int getLocalMemberListIndex() {
          final Collection<Member> dataMembers = nodeEngine.getClusterService().getMembers(DATA_MEMBER_SELECTOR);
          int index = -1;
          for (Member dataMember : dataMembers) {
              index++;
              if (dataMember.equals(nodeEngine.getLocalMember())) {
                  return index;
              }
          }
          return index;
      }