3 master nodes all creating individual clusters

Elastic Stack Elasticsearch
1

Hello, I have 3 master nodes all meant to be part of 1 cluster. I have added the nodes to the discovery.zen.ping.unicast.hosts field in the yml files. However, they are creating 3 separate clusters. How can I remove those clusters and join them to one?

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This has been solved. Turns out we were using deprecated fields in the yml for version 7.2 must use other fields. Refer to:

https://www.elastic.co/guide/en/elasticsearch/reference/master/modules-discovery-settings.html

AND

https://www.elastic.co/guide/en/elasticsearch/reference/master/modules-discovery-bootstrap-cluster.html

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