@Override
  public TDataPartitionTableResp getDataPartitionTable(TDataPartitionReq req) {
    GetDataPartitionPlan getDataPartitionPlan =
        GetDataPartitionPlan.convertFromRpcTDataPartitionReq(req);
    return configManager.getDataPartition(getDataPartitionPlan);
  }
ConfigNodeRPCServer exposes the interface that interacts with the DataNode
iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/service/thrift/ConfigNodeRPCServiceProcessor.java