@Override
  public TSystemConfigurationResp getSystemConfiguration() {
    TSystemConfigurationResp resp =
        ((ConfigurationResp) configManager.getSystemConfiguration())
            .convertToRpcSystemConfigurationResp();

    // Print log to record the ConfigNode that performs the GetConfigurationRequest
    LOGGER.info("Execute GetSystemConfiguration with result {}", resp);
    return resp;
  }
ConfigNodeRPCServer exposes the interface that interacts with the DataNode
iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/service/thrift/ConfigNodeRPCServiceProcessor.java