docs: @Override
      public StorageNode getStoreStorage(String groupName) {
          TrackerGetStoreStorageCommand command;
          if (StringUtils.isBlank(groupName)) {
              command = new TrackerGetStoreStorageCommand();
          } else {
              command = new TrackerGetStoreStorageCommand(groupName);
          }
  
          return trackerConnectionManager.executeFdfsTrackerCmd(command);
      }