Atm its on 2 nodes because the 3rd node as just about no load and what I can see is:
node 1 cpu: 26% node 2 cpu 80% mem for node 1 gets garbage collection to almost 0 where node 2 is 70%+ after garbage collection.
Request rate (indexing just over 2k for both and search rate just over 1k for both)
not sure how to check query load?