I do have an Elasticsearch cluster where some of the nodes are in an east-US datacenter (the master nodes are located here) and some of them are in a west-US datacenter.
I have requested the connections 9200 and 9300 TCP ports everrything is visible (checked with telnet), but there are some issues:
- The East US side of the cluster is up and running
- The West US nodes cannot see the East US nodes
- The West US nodes cannot connect to the cluster
What firewall settings did I missed?