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This control checks whether Elasticsearch domains have at least three data nodes and ensures the zoneAwarenessEnabled setting is activated. To achieve high availability and fault tolerance, an Elasticsearch domain should be configured with at least three data nodes. This ensures that the cluster can continue to function even if one node fails.
To modify the number of data nodes in an Elasticsearch domain:
Domains
, choose the name of the domain you want to edit.Edit domain
.Data nodes
, set Number of nodes
to a number greater than or equal to 3.Submit
.