final FessConfig fessConfig = ComponentUtil.getFessConfig();
        SearchResponse response = client.prepareSearch(index).setScroll(scrollForDelete).setSize(sizeForDelete)
                .setFetchSource(new String[] { fessConfig.getIndexFieldId() }, null).setQuery(queryBuilder)
                .setPreference(Constants.SEARCH_PREFERENCE_LOCAL).execute().actionGet(fessConfig.getIndexScrollSearchTimeout());