public void initConf() throws Exception {
    if (QTestSystemProperties.isVectorizationEnabled()) {
      conf.setBoolVar(ConfVars.HIVE_VECTORIZATION_ENABLED, true);
    }

    // Plug verifying metastore in for testing DirectSQL.
    conf.setVar(ConfVars.METASTORE_RAW_STORE_IMPL, "org.apache.hadoop.hive.metastore.VerifyingObjectStore");

    miniClusters.initConf(conf);

    // disable query history altogether
    HiveConf.setBoolVar(conf, HiveConf.ConfVars.HIVE_QUERY_HISTORY_ENABLED, false);

    // make DriverFactory able to create non-null QueryInfo objects
    conf.set(DriverContext.DEFAULT_USER_NAME_PROP, QTestUtil.QTEST_DRIVER_USER);
    conf.set(DriverContext.DEFAULT_OPERATION_ID_PROP, QTestUtil.QTEST_DRIVER_OPERATION_ID);
  }
Returns the default UDF names which should not be removed when resetting the test database

@return The list of the UDF names not to remove
itests/util/src/main/java/org/apache/hadoop/hive/ql/QTestUtil.java