for Master nodes, which kind of EC2 instances would be nice to have? I have a similar situation like mentioned in the below link:
Referance [Choosing the Correct AWS EC2 Servers]
Also I see that Instance storage is recommended by Elastic for Data nodes and as per the above I-series is recommended. But then again the I-series have EBS attached, won't this cause performance issues like slowdown against using EBS directly ?
Also it is mentioned that the Data Nodes are scaled horizontally. is it scaled using Auto-scaling Groups ? If not what would be good option to scale the data nodes as Data increases ?
Do I really need coordinating Nodes, if so could I just install it on Kibana EC2 Instance or would it be good to have a dedicated EC2 for a coordinating Node ?