1 Overview
2. Add node
Add notes:
ES must have the same version number, for example: Elasticsearch V6.4.1.
Consistent with the newly configured Elasticsearch node, the following only introduces the fastest method.
Step 1: Copy ES related files of the original node to the new machine.
Step 2: Modify the core configuration file jvm.options和elasticsearch.yml。
Note 1: JVM pay attention to the rational configuration of the actual machine memory. Value: Min (32GB, half of machine memory).
Note 2: Configure according to the assigned role (Master/data/client).
Note 3: The cluster name must be consistent with the previous machine.
Note 4: Avoid split brain, rationalize the following configuration
curl -XPUT 'localhost:9200/_cluster/settings' -d'