public void setLoadActiveListeningDirs(String[] loadActiveListeningDirs) {
    for (int i = 0; i < loadActiveListeningDirs.length; i++) {
      loadActiveListeningDirs[i] = addDataHomeDir(loadActiveListeningDirs[i]);
    }
    this.loadActiveListeningDirs = loadActiveListeningDirs;
  }
if the folders are relative paths, add IOTDB_DATA_HOME as the path prefix
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/conf/IoTDBConfig.java