docs: public void createZookeeperBase() throws WorkerDaoException {
      createPersistentEmptyNodeIfNotExist(BASE_ZK);
      createPersistentEmptyNodeIfNotExist(WORKERS_ZK);
      createPersistentEmptyNodeIfNotExist(PLANS_ZK);
      createPersistentEmptyNodeIfNotExist(SAVED_ZK);
      createPersistentEmptyNodeIfNotExist(LOCKS_ZK);
      createPersistentEmptyNodeIfNotExist(PLAN_WORKERS_ZK);
    }