I am running ES v6.3.2. I have 2 master nodes and 2 data nodes in my cluster (lets call them M1 & M2 and D1 & D2). Lets say they are running on following IPs
M1 : 10.20.30.1:9200 M2 : 10.20.30.2:9200 D1 : 10.20.30.3:9200 D2 : 10.20.30.4:9200
I am communicating with the elastic search using the Low Level Java Rest Client.
On my local machine, I had only 1 instance running and I was communicating over (localhot:9200).
HttpHost httpHost1 = new HttpHost("localhot", 9200, "http");
My question is shall I build 4 HttpHost instances to talk to ES Cluster, or should I put all 4 ES instances behind the load balancer and build 1 HttpHost instance to talk to it?