I am trying to setup Elasticsearch cluster(6.3.2) with 4 nodes(1 coordinating node and 3 Master Eligible and Data nodes). Elasticsearch is starting on all 4 nodes separately but it's not forming a cluster. Error I get is,
not enough master nodes discovered during pinging
Here are some setting in yml file,
node.master: true node.data: true bootstrap.memory_lock: true network.host: 0.0.0.0 http.port: 9200 discovery.zen.ping.unicast.hosts: ["xxxxx", "xxxxx", "xxxxx"] discovery.zen.minimum_master_nodes: 2
With exact same yml I've been running Production cluster(5.6.7) for long time
I tried changing network.host to the exact ip address of the machine with no luck.
Can someone please help me understand the issue?