.setSize(0)
                .execute()
                .actionGet()
                .getHits()
                .getTotalHits()
                .value() > 0);
        assertTrue(fesenClient.prepareSearch("fess_crawler.filter")
                .setQuery(QueryBuilders.termQuery("sessionId", sessionId2))
                .setSize(0)
                .execute()

        SearchResponse response = client.prepareSearch()
                .setIndices(index)
                .setScroll(settings.getScrollTimeout())
                .setQuery(query)
                .setSize(pageSize)
                .execute()
                .actionGet(settings.getSearchTimeout());
        String scrollId = response.getScrollId();

        try {
            while (scrollId != null) {

  private void verifyTableSize(int inputSize, int setSize, int tableSize) {
    Builder<Integer> builder = ImmutableSet.builder();
    for (int i = 0; i < inputSize; i++) {
      builder.add(i % setSize);
    }
    ImmutableSet<Integer> set = builder.build();
    assertTrue(set instanceof RegularImmutableSet);
    assertEquals(
        "Input size " + inputSize + " and set size " + setSize,
        tableSize,

  private void verifyTableSize(int inputSize, int setSize, int tableSize) {
    Builder<Integer> builder = ImmutableSet.builder();
    for (int i = 0; i < inputSize; i++) {
      builder.add(i % setSize);
    }
    ImmutableSet<Integer> set = builder.build();
    assertTrue(set instanceof RegularImmutableSet);
    assertEquals(
        "Input size " + inputSize + " and set size " + setSize,
        tableSize,

        SuggestItem[] items = getPopularWordsItemSet2();
        suggester.indexer().index(items);
        suggester.refresh();

        PopularWordsResponse response = suggester.popularWords().setSize(2).execute().getResponse();

        assertEquals(5, response.getTotal());

        for (int i = 0; i < 5; i++) {
            assertEquals(2, response.getNum());
            boolean find = false;

        final SearchRequestBuilder builder = client.prepareSearch(index);

        if (skipDuplicateWords) {
            builder.setSize(size * 2);
        } else {
            builder.setSize(size);
        }

        // set query.
        final QueryBuilder q = buildQuery(query, fields);

        // set function score

        urlQueueService.insert(urlQueue);
        assertTrue(fesenClient.prepareSearch("fess_crawler.queue")
                .setQuery(QueryBuilders.termQuery("sessionId", "sessionId"))
                .setSize(0)
                .execute()
                .actionGet()
                .getHits()
                .getTotalHits()
                .value() > 0);

        urlQueueService.delete("sessionId");

        }

        final List<SuggestItem> updateItems = new ArrayList<>();
        SearchResponse response = client.prepareSearch(index)
                .setSize(SCROLL_PAGE_SIZE)
                .setScroll(settings.getScrollTimeout())
                .setQuery(QueryBuilders.rangeQuery(freqField).gte(1))
                .execute()

            final long count = searchEngineClient.scrollSearch(fessConfig.getIndexDocumentSearchIndex(), requestBuilder -> {
                requestBuilder.setQuery(query).setSize(scrollSize);
                return true;
            }, source -> {
                exportDocument(source, exportPath, excludeFields, resolvedFormatter);

        final SearchResponse searchResponse = client.prepareSearch(indexName)
                .setQuery(QueryBuilders.termQuery("hostname", hostname))
                .setSize(searchSize)
                .addSort("timestamp", SortOrder.ASC)
                .execute()
                .actionGet(fessConfig.getIndexSearchTimeout());

        final SearchHit[] hits = searchResponse.getHits().getHits();