private void initTriggerRelatedInstance() throws StartupException {
    try {
      TriggerExecutableManager.setupAndGetInstance(
          config.getTriggerTemporaryLibDir(), config.getTriggerDir());
    } catch (IOException e) {
      throw new StartupException(e);
    }
  }
Generate a list for UDFs that do not have jar on this node.
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/service/DataNode.java