return false;
        }
        refresh();
        return true;
    }

    public boolean deleteQueryWords() {
        final SuggestDeleteResponse response = suggester.indexer().deleteQueryWords();
        if (response.hasError()) {
            logger.warn("Failed to delete query words.", response.getErrors().get(0));
            return false;
        }

            SuggestUtil.deleteScrollContext(client, scrollId);
        }

        return new SuggestDeleteResponse(null, System.currentTimeMillis() - start);
    }

    public SuggestDeleteResponse deleteQueryWords() {
        final long start = System.currentTimeMillis();

        final SuggestDeleteResponse deleteResponse =