docs: public void addRemedyIndex(RemedyIndexEventData data) {
          String path = StagePathUtils.getRemedyRoot(data.getPipelineId());
          try {
              zookeeper.create(path + "/" + RemedyIndexEventData.formatNodeName(data), new byte[] {},
                               CreateMode.PERSISTENT);
          } catch (ZkNodeExistsException e) {
              // ignore
          } catch (ZkException e) {
              throw new ArbitrateException("addRemedyIndex", data.getPipelineId().toString(), e);
          }
      }