@Override
  public void initSyncedServiceImpl(Object configNodeRPCServerProcessor) {
    this.configNodeRPCServiceProcessor =
        (ConfigNodeRPCServiceProcessor) configNodeRPCServerProcessor;
    super.initSyncedServiceImpl(this.configNodeRPCServiceProcessor);
  }
ConfigNodeRPCServer exposes the interface that interacts with the DataNode
iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/service/thrift/ConfigNodeRPCService.java