title: Is it possible to add a node to a cluster, where data is replicated synchronously?
body: <p>If I have system which writes data to a storage.</p>
  
  <p>In cluster setup if the data is replicated synchronously, that is when I get request to change data that is updated across all the nodes and then the response is returned back.</p>
  
  <p>In this scenario is it possible to add node dynamically?</p>
  
  <p>That is, say there are 2 nodes and some transactions are executed on that cluster. Can I add a 3rd node with cluster still running?</p>
  
  <p>If I add a new node like this, does not it break the strong consistency of the cluster?</p>