public List<HiveLock> getLocks(boolean verifyTablePartitions, boolean fetchData, HiveConf conf)
      throws LockException {
    return root.getLocks(verifyTablePartitions, fetchData, conf);
  }
shared lock manager for dedicated hive server. all locks are managed in memory
ql/src/java/org/apache/hadoop/hive/ql/lockmgr/EmbeddedLockManager.java