IndexValue readIndexValueFromRangeMap(BlobId id) throws ContinueException {
    IndexValue indexValue = rangeMap.get(id);
    if (indexValue == null) {
      return null;
    }
    return indexValue;
  }
@return {@code true} if this was a delete record, {@code false} otherwise
@throws ContinueException if there is a deser failure in the new log
ambry-tools/src/main/java/com/github/ambry/store/HardDeleteVerifier.java