Thanks! never heard of the learner member feature until now. I was asking for an app where most of the nodes are exerting watch operations while only a few other nodes do PUTs due to human intervention. This means that I have a very low write/read ratio. Also I assume that the number of nodes is usually stable so it's not like a very dynamic system where nodes join and leave very frequently. Does this make it easier to have a cluster of 50-100 nodes in different datacenters without breaking etcd down?