Configuration replication in a search head cluster

A system comprising:

• a first local data store of a first search head;
• and
• a processing device operatively coupled to the first local data store, the processing device to:
• receive, by the first search head of a cluster comprising a plurality of search heads, a first customization of a knowledge object from a client computing device of a plurality of client computing devices, wherein each search head is responsible for a reduce phase of a map-reduce search computation, and wherein each search head comprises a local data store;
• store a first journal entry relating to the first customization of the knowledge object in a first local data store of the first search head;
• receive a second journal entry relating to a second customization of the knowledge object processed by a second search head of the cluster;
• detect a conflict by determining the first journal entry and the second journal entry share a same parent commit journal entry;
• and
• resolve the conflict by updating the parent commit journal entry of the first journal entry to a current parent commit, wherein the second customization of the knowledge object is accessible by one or more of the plurality of client computing devices via a user interface associated with the first search head to perform a first map-reduce search computation using the second customization of the knowledge object.

A non-transitory computer-readable medium having instructions encoded thereon which, when executed by a processing device, cause the processing device to perform operations comprising:

• receiving, by the processing device of a first search head of a cluster comprising a plurality of search heads, a first customization of a knowledge object from a client computing device of a plurality of client computing devices, wherein each search head is responsible for a reduce phase of a map-reduce search computation, and wherein each search head comprises a local data store;
• storing a first journal entry relating to the first customization of the knowledge object in a first local data store of the first search head;
• receiving a second journal entry relating to a second customization of the knowledge object processed by a second search head of the cluster;
• detecting a conflict by determining the first journal entry and the second journal entry share a same parent commit journal entry;
• and
• resolving the conflict by updating the parent commit journal entry of the first journal entry to a current parent commit, wherein the second customization of the knowledge object is accessible by one or more of the plurality of client computing devices via a user interface associated with the first search head to perform a first map-reduce search computation using the second customization of the knowledge object.