code: private static int getAppendLimitDelta(String maxLimit) {
      LOG.debug("Getting append limit delta");
      int limitDelta = 0;
      if (!Strings.isNullOrEmpty(maxLimit)) {
        String[] limitParams = maxLimit.split("-");
        if (limitParams.length >= 2) {
          limitDelta = Integer.parseInt(limitParams[1]);
        }
      }
      return limitDelta;
    }
docs: Get append max limit delta num
  
  @param maxLimit
  @return Max limit delta number