I have a small cluster built of 4 nodes which only 3 of them are data nodes. Currently, all four of them are master eligible which is of course not a very good idea because all the three nodes are busy handling their data. But since that I don't have an option to add two more nodes to the cluster, I would like to know if it is possible somehow to make the cluster choose the fourth node (which is configured as node.data: false) to be its master node and only when it's not available to choose another node randomly. Is that doable?
Thanks a lot,