docs: public static int createRejoinNodeIndicator(ZooKeeper zk, int hostId)
      {
          try {
              zk.create(rejoin_node_blocker,
                        ByteBuffer.allocate(4).putInt(hostId).array(),
                        Ids.OPEN_ACL_UNSAFE,
                        CreateMode.PERSISTENT);
          } catch (KeeperException e) {
              if (e.code() == KeeperException.Code.NODEEXISTS) {
                  try {
                      return ByteBuffer.wrap(zk.getData(rejoin_node_blocker, false, null)).getInt();
                  } catch (KeeperException e1) {
                      if (e1.code() != KeeperException.Code.NONODE) {
                          org.voltdb.VoltDB.crashLocalVoltDB("Unable to get the current rejoining node indicator");
                      }
                  } catch (InterruptedException e1) {}
              } else {
                  org.voltdb.VoltDB.crashLocalVoltDB("Unable to create rejoin node Indicator", true, e);
              }
          } catch (InterruptedException e) {
              org.voltdb.VoltDB.crashLocalVoltDB("Unable to create rejoin node Indicator", true, e);
          }
  
          return -1;
      }