How to make cluster as master-slave?

Please, describe the problem here and provide additional information below (if applicable) …

— I want to connect 2 systems in opennebula using cluster.

Versions of the related components and OS (frontend, hypervisors, VMs): I’m using opennebula 5.6.2 in ubuntu 16.04

Steps to reproduce: one system should be master and another 1 should be slave. Both system should communicate. And I want to see the slave system in master system’s front end.

Current results: I have created a zone, connected 2 systems, but I’m unable to access or check any second system in my so called master system. I have changed “federation” part in /etc/one/oned.conf file in both master and slave system(I think I did correct following the official opennebula document).

Expected results: I want to see slave in my front end. So next what to do? how to track slave system from my master node?

Thanks in advance.