code: @Override
    protected void initZnode() { 
      try {
        ZooKeeperUtil.createAndFailSilent(this, "/chronos");
        super.initZnode();
        ZooKeeperUtil.createAndFailSilent(this, baseZnode + "/persistent-timestamp");
      } catch (Exception e) {
        LOG.fatal("Error to create znode of chronos, exit immediately");
        System.exit(0);
      }
    }
docs: Create the base znode of chronos.