docs: private void updateQuotaForPath(String path) {
          Counts c = new Counts();
          getCounts(path, c);
          StatsTrack strack = new StatsTrack();
          strack.setBytes(c.bytes);
          strack.setCount(c.count);
          String statPath = Quotas.quotaZookeeper + path + "/" + Quotas.statNode;
          DataNode node = getNode(statPath);
          // it should exist
          if (node == null) {
              LOG.warn("Missing quota stat node " + statPath);
              return;
          }
          synchronized (node) {
              node.data = strack.toString().getBytes();
          }
      }