private void checkProcWalDir(String procedureWalDir) throws IOException {
    File dir = new File(procedureWalDir);
    checkOldProcWalDir(dir);
  }
clean all the wal, used for unit test.
iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/procedure/store/ConfigProcedureStore.java