How to force dates to fit in a 2-master cluster?

Question

elasticsearch

I deployed a cluster in Rancher 2, and for some reason one of the 3 dates crashes when the second master is turned on.
What could be the reason?

Answer 1

2 masters is bad, the cluster can fall apart into 2 independent clusters, maybe this is what you are seeing.
this is what the dock says for es, at least 2.4
link
i.e. 2 master nodes are initially doomed to failure.
In practice, we did the following, launched on 3 servers, 2 elasticsearch instances each, one of which acted as a master, the second as a datanode, in total we got 3 masters and 3 nodes on 3 servers.