Splunk® Enterprise

Managing Indexers and Clusters of Indexers

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Splunk Enterprise version 7.3 is no longer supported as of October 22, 2021. See the Splunk Software Support Policy for details. For information about upgrading to a supported version, see How to upgrade Splunk Enterprise.
This documentation does not apply to the most recent version of Splunk® Enterprise. For documentation on the most recent version, go to the latest release.
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Configure the search head with the CLI

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Before reading this topic, see:

Enable a search head

The following example shows the basic settings that you typically configure when enabling a search head. The configuration attributes correspond to fields on the Enable clustering page of Splunk Web.

To enable an instance as a search head, set mode to "searchhead". You also need to specify the master_uri and the cluster-wide security key (secret):

splunk edit cluster-config -mode searchhead -master_uri https://10.160.31.200:8089 -secret your_key

splunk restart

The -secret flag modifies the pass4SymmKey setting in the [clustering] stanza of server.conf.

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.

Last modified on 30 September, 2020
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This documentation applies to the following versions of Splunk® Enterprise: 7.0.0, 7.0.1, 7.0.2, 7.0.3, 7.0.4, 7.0.5, 7.0.6, 7.0.7, 7.0.8, 7.0.9, 7.0.10, 7.0.11, 7.0.13, 7.1.0, 7.1.1, 7.1.2, 7.1.3, 7.1.4, 7.1.5, 7.1.6, 7.1.7, 7.1.8, 7.1.9, 7.1.10, 7.2.0, 7.2.1, 7.2.2, 7.2.3, 7.2.4, 7.2.5, 7.2.6, 7.2.7, 7.2.8, 7.2.9, 7.2.10, 7.3.0, 7.3.1, 7.3.2, 7.3.3, 7.3.4, 7.3.5, 7.3.6, 7.3.7, 7.3.8, 7.3.9, 8.0.0, 8.0.1, 8.0.2, 8.0.3, 8.0.4, 8.0.5, 8.0.6, 8.0.7, 8.0.8, 8.0.9, 8.0.10


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