Elasticsearch Cluster

Elasticsearch Cluster

Last Update: March 2020

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Cluster in Elasticsearch

What is it

In Elasticsearch a cluster is a collection of one or more nodes (servers / VMs). A cluster can consist of an unlimited number of nodes. The cluster provides interface for indexing and storing data and search capability across all of the data which is stored in the data nodes

Each cluster has a single master node that is elected by the master eligible nodes. In cases where the master is not available the other connected master eligible nodes elect a new master. Clusters are identified by a unique name, which defaults to “Elasticsearch”.


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Opster is redefining Elasticsearch management - pro-actively troubleshooting, optimizing performance, operating on clusters and assisting with all things needed to successfully run ES in production


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