Can you please clarify if we can go ahead installing solr_monitor 1.0 only on master nodes to have all the cluster monitored?
Release : 9.0.2
Component : UIM - APACHE
As the solr_monitor probe is local it must be deployed on the each machine where Solr server is running. If you have more then one solr processes on the machine with Solr server you will see it in the inventory tree as nodes.