docs: public void single(SyncStatusEventData syncStatus) {
          String path = StagePathUtils.getPipeline(syncStatus.getPipelineId());
          try {
              byte[] bytes = JsonUtils.marshalToByte(syncStatus);
              zookeeper.writeData(path, bytes);
              logger.info("## single status : " + syncStatus);
          } catch (ZkException e) {
              throw new ArbitrateException("single_SyncStatus", syncStatus.getPipelineId().toString(), e);
          }
      }