public static void createWithParents(ZKWatcher zkw, String znode) throws KeeperException {
    createWithParents(zkw, znode, new byte[0]);
  }
Creates the specified node and all parent nodes required for it to exist. No watches are set
and no errors are thrown if the node already exists. The nodes created are persistent and open
access.
@param zkw   zk reference
@param znode path of node
@throws KeeperException if unexpected zookeeper exception
hbase-zookeeper/src/main/java/org/apache/hadoop/hbase/zookeeper/ZKUtil.java