Adding a stand-alone Elasticsearch node to the cluster
Learn how to add a stand-alone Elasticsearch node to the cluster.
About this task
You can add a stand-alone Elasticsearch node to your existing MobileFirst Analytics cluster in just a few simple steps. However, you must decide the role of this node. Is it going to be a master-eligible node? If so, remember to avoid the split-brain issue from Configuration guide. Is it going to be a data node? Is it going to be a client-only node? Perhaps you want a client-only node so that you can start a node temporarily to expose Elasticsearch's REST API directly to affect dynamic configuration changes to your running cluster.
In the following sample instructions, do not configure the node to be a master node or a data node. Instead, configure the node as a "search load balancer" whose purpose is to be up temporarily so that the Elasticsearch REST API is exposed for monitoring and dynamic configuration.