MySQL Cluster Manager 8.4.6 User Manual
add hosts {--hosts=|-h }host_list site_name
host_list:
    host[, host[, ...]]
        This command adds one or more hosts to an existing management
        site. Agents using the same port as the management site must be
        running on any hosts added using this command. This command
        takes two mandatory arguments: a list of hosts (using the
        --hosts option or its
        short form
        -h),
        and the name of the site to which the hosts are to be added.
      
        The --hosts takes a
        comma-separated list of one or more hosts to be added to the
        site.
      
        For example, the following command adds two hosts named
        torsk and kolja to
        management site mysite:
      
mcm> add hosts --hosts=torsk,kolja mysite;
+--------------------------+
| Command result           |
+--------------------------+
| Hosts added successfully |
+--------------------------+
1 row in set (0.48 sec)
        None of the hosts added by this command may already be members
        of management site site_name. Do not
        attempt to add again a host that is already a member of the
        management site using its secondary (or alternate) IP
        address—the mcmd process on the host is
        already bound to the IP address that was supplied when the host
        was first added, and it cannot be bound again to another IP
        address.
      
              This command does not support the
              --force option.
            
              Do not use localhost in the host list,
              as MySQL Cluster Manager relies on the operating system for host name
              resolution, and localhost might be
              resolved differently on different systems. Use proper host
              names for the host list or, preferably, use the IP
              addresses for the hosts instead.
            
When IPv6-enabled Windows systems are used as MySQL NDB Cluster hosts under MySQL Cluster Manager, you must reference these hosts using IPv4 addresses. Otherwise, MySQL Cluster Manager will be unable to connect to the agent processes on those hosts. See Section 6.1, “MySQL Cluster Manager Usage and Design Limitations”.