Elasticsearch is an open-source, full-text search engine that provides distributed indexing and search. You can install Elasticsearch on any machine where the MDM Hub components are installed or on a separate machine. Based on your MDM Hub topology and the amount of data to index, determine the number of nodes to configure for the Elasticsearch cluster. Each node can in turn have multiple indexes. You can decide to split the indexes into multiple shards.

For information about how to determine the number of nodes to configure for the Elasticsearch cluster and how to configure indexes, see the

Elasticsearch documentation.