You are looking at documentation for an older release. Not what you want? See the current release documentation.
An Elasticsearch node is embedded in the eXo Platform server (and is hosted in the same JVM).
The Elasticsearch node is declared as:
Master: To manage the cluster with only one node.
Data: To index and store documents.
Client: To serve and coordinate requests from the platform.
By default:
The parameter es.cluster.name of the Elasticsearch cluster is exoplatform-es.
The parameter es.network.host is set to 127.0.0.1. This prevents accesses from IP other than localhost and prevents other nodes to join the ES cluster.
The broadcast parameter es.discovery.zen.ping.multicast.enabled: It is set to false.
The parameter es.http.port is set by default to the port 9200: Elasticseach is bound to port 9200 for HTTP connections.
Elasticsearch Embedded mode properties are configurable through exo.properties file. More details could be found here.