code: void set_next_Cloud( H2ONode[] h2os, int hash ) {
      synchronized(this) {
        int idx = _idx+1; // Unique 1-byte Cloud index
        if( idx == 256 ) idx=1; // wrap, avoiding zero
        CLOUDS[idx] = CLOUD = new H2O(h2os,hash,idx);
      }
      SELF._heartbeat._cloud_size=(char)CLOUD.size();
  
      H2O.CLOUD._node_ip_to_index = new HashMap<>();
      for(H2ONode node: H2O.CLOUD._memary){
        H2O.CLOUD._node_ip_to_index.put(node.getIpPortString(), node.index());
      }
    }
docs: member list.