private void initClientAndPaths() {
    if (this.zkSession != null) {
      this.zkSession.close();
    }
    try {
      ensurePath(rootNode + NODE_KEYS, newNodeAcl);
      ensurePath(rootNode + NODE_TOKENS, newNodeAcl);
    } catch (TokenStoreException e) {
      throw e;
    }
  }
Parse comma separated list of ACL entries to secure generated nodes, e.g.
<code>sasl:hive/host1@MY.DOMAIN:cdrwa,sasl:hive/host2@MY.DOMAIN:cdrwa</code>
@param aclString
@return ACL list
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/security/ZooKeeperTokenStore.java