Currently in a proyect we have 4 nodes, eachone with this specs:
- 10TB of HD
- 1TB of RAM
- 20 Cores of CPU
I would like to confirm that:
Question 1: It is a good idea to buy 6 Elasticsearch Platinum licenses for this nodes? Note: As i understand 1 license per node, will be let 2 licenses without use.
Question 2: It is a good idea the following configuration?
node1, node2, and node3:
heap size max (all nodes): 30 GB
node 1 and 3: rack_1 , hot
node 2 and 4: rack_2 , warm
Question 3: I must avoid running multiple instances of Elasticsearch in same physical node, right?