1. Start two karaf instance locally, then install cellar in first karaf instance (cluster node1), and install cellar in second karaf instance (cluster node2).
2. Install cellar-obr in cluster node1, then check if cellar-obr is already installed in cluster node2.
3. in cluster node2, the status of cellar-obr is "uninstalled".
About installing other features "cellar-cloud", "cellar-webconsole", the result is same to the feature "cellar-obr". All those features cannot be synchronized to another node.
BTW, in the config "org.apache.karaf.cellar.groups.cfg":