I am trying to upgrade my TST environment from Elasticsearch 6.8.1 to 7.4.2, I am getting the below error during the upgrade in logs.
master not discovered yet, this node has not previously joined a bootstrapped (v7+) cluster, and this node must discover master-eligible nodes [hostnamenode1, hostnamenode2, hostnamenode3] to bootstrap a cluster: have discovered
network.host: ipaddress of 1stvirtual
discovery.seed_hosts: ["ipaddress of 2ndvirtual", "ipaddress of 3rdvirtual"]
cluster.initial_master_nodes: ["hostnamenode1", "hostnamenode2", "hostnamenode3"]
on each virtual server we are running 3 nodes...
can you please help us with proper elasticsearch.yml configuration in this regard.