@Override
  public boolean removeMasterKey(int keySeq) {
    String keyPath = rootNode + NODE_KEYS + "/" + String.format(ZK_SEQ_FORMAT, keySeq);
    zkDelete(keyPath);
    return true;
  }
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