no, you don't Need this. please take a look @ here http://docs.splunk.com/Documentation/Splunk/7.0.2/Indexer/ConfiguresearchheadwithCLI
Edit the search head settings
You can also use the CLI to edit the configuration later.
Important: When you first enable a search head, you use the splunk edit cluster-config command. To change the search head configuration, you must instead use the splunk edit cluster-master command.
For example, to change the security key (secret), use this command:
splunk edit cluster-master https://10.160.31.200:8089 -secret newsecret123
Important: The splunk edit cluster-master command always takes the current master URI:port value as its initial parameter. For example, this command connects the search head to a different master by setting a new value for the -master_uri parameter, but it provides the value for the old master as its initial parameter:
splunk edit cluster-master https://10.160.31.200:8089 -master_uri https://10.160.31.55:8089
Refer to the CLI clustering help, along with the server.conf specification file, for the list of configurable settings.
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