Problem with Indexer and Search Head on one server?

[splunk_enjoyer]

Hello Splunk lovers! 
I have problem on Splunk Cluster.
I had 3 SH and 3 Indexers.

On indexer-1 installed deployer, indexer managament and cluster master.

On cluster master i see indexer-1 search head and indexer too. B
but its should not be search head, should be indexer only
So, wtf and how can i set him only indexer?
thanks you for help! 

[richgalloway · Accepted solution]

The Cluster Manager (CM) must not be a member of the cluster - it must be a separate instance.

Similarly, the deployer should be a separate instance.  However, on a small environment such as this, the CM and deployer can be on the same instance.

Make sure each indexer is correctly added to the cluster.  See https://docs.splunk.com/Documentation/Splunk/9.0.4/Indexer/Addclusterpeer