@SafeVarargs
  protected static <T extends Enum<?>> KeySetView<String, Boolean> buildSet(T... keywords) {
    KeySetView<String, Boolean> result = ConcurrentHashMap.newKeySet();
    result.addAll(
        Arrays.stream(keywords).map(KillPoint::enumToString).collect(Collectors.toList()));
    return result;
  }
Check whether the original DataNode's region file has been deleted.
integration-test/src/test/java/org/apache/iotdb/confignode/it/regionmigration/IoTDBRegionOperationReliabilityITFramework.java