i am trying to use the this calculator: https://cloud.elastic.co/pricing and trying to size my cloud cluster and compare it to my current on prem cluster.
I know from the documentation that it is recomended to give elastic java process max heap of 50% total machine memory. And that is also what I have done on prem. I have 3 machines with 32GB RAM each, which means heap is max 16 GB per node * 3 = 48 GB heap.
Based on this fact can anyone answer me following question:
Is the RAM size showed in the calculator the amount of machine memory which my cluster can consume, meaning for nearly same cluster size I need to select roughly 87 GB RAM because I will have total of 43,5 GB of max heap. Is this correct?
Or can I just select that exact number which corresponds to my desired heap size?