I'm about to set up a Distributed Management Console on my Master node of my indexer cluster.
Unfortunately, after I did every step in the manual, the master shows a "duplicate instance name" as I try to apply the settings.
And this is in fact true.
The two indexers that are clustered have an instance (serverName) and a Machine name of their own.
BUT the Instance (host) field has the name of the cluster master node.