title: Questions about CreateCluster tool in H2 database
body: <p>I have a couple of questions about H2's create cluster tool's behavior.</p>
  
  <ol>
  <li><p>If a create a cluster specifying source A and target B, is H going to keep B in synch with A? In other words, is there a master-slave relationship maintained between both?</p></li>
  <li><p>Let's imagine that database A, B and C belong to the same cluster. What happens if two different transactions are executed on A and B simultaneoulsy. Does H2 elect a leader in the cluster to make sure there is a unique execution order for all databases in the cluster?</p></li>
  <li><p>If H2 elects a leader, what if this leader disappears? Is there an automatic failover mecanism? Is a new leader automatically elected? Can I still </p></li>
  <li><p>If I create a cluster with source A -> target B, then source B -> target C, then source C -> target D, will D get statements to execute from C, C get executions statements from B and B get statements to execute for A? Or will B, C and D get execution statements from A (or the elected leader)? In other words, do we have a chain or star organization?</p></li>
  </ol>