docs: @Override
      public StorePath uploadAppenderFile(String groupName, InputStream inputStream, long fileSize, String fileExtName) {
          StorageNode client = trackerClient.getStoreStorage(groupName);
          StorageUploadFileCommand command = new StorageUploadFileCommand(client.getStoreIndex(), inputStream,
                  fileExtName, fileSize, true);
          return connectionManager.executeFdfsCmd(client.getInetSocketAddress(), command);
      }