Merge Indexer Cluster and Search Head Cluster after a Split Brain

[FritzWittwer_ol]

How can a search head and an indexer cluster be merged after the cluster has been run intentionally in a split brain setup for some time.

e.g. the connections between two locations of a multi site cluster is broken and a captain has been assigned manualy to the second site.

[agutknecht_splu]

Hi Fritz

The scenario is well documented on the following Splunk docs:

Handle master site failure:
http://docs.splunk.com/Documentation/Splunk/7.2.0/Indexer/Mastersitefailure

Restart indexing in multisite cluster after master restart or site failure
http://docs.splunk.com/Documentation/Splunk/7.2.0/Indexer/Restartindexing

Ensure that the peer and search head nodes can find the new master
http://docs.splunk.com/Documentation/Splunk/7.2.0/Indexer/Handlemasternodefailure#Ensure_that_the_pe...

Happy Splunking!
Alain