@Override
  public void startUpCheck() throws StartupException, IOException, ConfigurationException {
    envCheck();
    portCheck();
    verify();
    checkGlobalConfig();
    createDirsIfNecessary();
    checkRequestManager();
    if (SystemPropertiesUtils.isRestarted()) {
      /* Always restore ConfigNodeId first */
      CONF.setConfigNodeId(SystemPropertiesUtils.loadConfigNodeIdWhenRestarted());

      SystemPropertiesUtils.checkSystemProperties();
    }
  }
{@link ConfigNodeStartupCheck} checks the parameters in iotdb-confignode.properties and
confignode-system.properties when start and restart.
iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/conf/ConfigNodeStartupCheck.java