I am very curious to know the answer of this question.
I have an index clustering setup consisting of one license manager, two index peer nodes, and one index master node.
I never defined any of the nodes as a search head node. However, when I click on search head tab under settings --> Index Clustering in index master Splunk Web UI, it show me the master indexer node host name, even though I never defined indexer master node as a search head node.
Can anyone explain me how does it show index master node as search head node also?