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Steps to Install Elasticsearch
Steps to Install Elasticsearch
This topic describes how to install Elasticsearch 6.8.1 on a single node and how to configure an Elasticsearch cluster (three nodes).
Install and configure Elasticsearch on a single node
Configure an Elasticsearch cluster (3 nodes)
The number of Elasticsearch nodes you use in a cluster should be odd. That is, the minimum number of nodes you can use in a cluster is 3.
To avoid split-brain, you need to specify an appropriate value for the discovery.zen.minimum_master_nodes parameter. To determine it, follow the rule N/2+1, where N is the number of nodes in the cluster. In a three-node cluster, the parameter should be set to 2 (3/2+1=2 - rounded down to the nearest integer).
See Also
Zephyr On-Premise Production Installation
Set Up Zephyr Data Center Cluster
Connecting to an External Database
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