code: function initRedis() {
      return when.promise((resolve, reject) => {
        redis.get(name, (err, res) => {
          if(err) {
            memStore = {};
          } else if(res) {
            memStore = JSON.parse(res);
          } else {
            memStore = {};
          }
          resolve(true);
        });
      });
    }
docs: load memStore state from redis