private void loadCQProps(TrimProperties properties) {
    conf.setContinuousQueryThreadNum(
        Integer.parseInt(
            properties.getProperty(
                "continuous_query_thread_num",
                Integer.toString(conf.getContinuousQueryThreadNum()))));
    if (conf.getContinuousQueryThreadNum() <= 0) {
      conf.setContinuousQueryThreadNum(Runtime.getRuntime().availableProcessors() / 2);
    }

    conf.setContinuousQueryMinimumEveryInterval(
        DateTimeUtils.convertDurationStrToLong(
            properties.getProperty("continuous_query_minimum_every_interval", "1s").trim(),
            CommonDescriptor.getInstance().getConfig().getTimestampPrecision(),
            false));
  }
load a property file and set TsfileDBConfig variables.
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/conf/IoTDBDescriptor.java