MySQL Cluster Manager 8.4.6 User Manual
list hosts [--verbose|-v]  site_name
        The list hosts command is used to obtain a
        list of the hosts comprising a given management site. The
        command requires a single argument, the name of the site to be
        examined. For each host listed, the information returned
        includes the hostname, status, and version of the management
        agent software in use, as shown in this example:
      
mcm> list hosts mysite;
+-----------+-----------+---------+
| Host      | Status    | Version |
+-----------+-----------+---------+
| tonfisk   | Available | 8.4.6  |
| flundra   | Available | 8.4.6  |
+-----------+-----------+---------+
2 rows in set (0.16 sec)
        Status can be one of :
      
            Available: Agent on the host is active
          
            Recovery: Agent on the host is in the
            process of recovering itself
          
            Unresponsive: Agent on the host rejected
            an attempt to connect
          
            Unavailable: Agent on the host is
            unreachable
          
        If an agent is reported persistently as
        Unresponsive or
        Unavailable, you may have to restart it.
      
        If you omit the site_name argument,
        the command fails with an error, as shown here:
      
mcm> list hosts;
ERROR 6 (00MGR): Illegal number of operands
        Using the --verbose
        option (short form :
        -v)
        causes the command to print additional information on the hosts:
mcm> list hosts --verbose mysite;
+---------+-----------+---------+-------+---------+--------------------------+
| Host    | Status    | Version | Cores | Memory  | OS                       |
+---------+-----------+---------+-------+---------+--------------------------+
| tonfisk | Available | 8.4.6  | 1     | 1819 Mb | Linux 4.15.0-147-generic |
| flundra | Available | 8.4.6  | 1     | 1819 Mb | Linux 4.15.0-147-generic |
+---------+-----------+---------+-------+---------+--------------------------+
2 rows in set (0.07 sec)