int num = 10000;

        addDocument(indexName, client, num);

        ESSourceReader reader = new ESSourceReader(client, settings, indexName);
        reader.setScrollSize(1);
        reader.setLimitDocNumPercentage("1%");
        int count = 0;
        Set<String> valueSet = Collections.synchronizedSet(new HashSet<>());
        Map<String, Object> source;
        while ((source = reader.read()) != null) {

        sortList.add(sortBuilder);
    }

    /**
     * Sets the limit document number percentage.
     * @param limitPercentage The limit percentage as a string (e.g., "50%").
     */
    public void setLimitDocNumPercentage(final String limitPercentage) {
        final int originalValue;
        if (limitPercentage.endsWith("%")) {
            originalValue = Integer.parseInt(limitPercentage.substring(0, limitPercentage.length() - 1));

                    fessConfig.getIndexDocumentSearchIndex());
            reader.setScrollSize(fessConfig.getSuggestSourceReaderScrollSizeAsInteger());
            reader.setLimitDocNumPercentage(fessConfig.getSuggestUpdateContentsLimitNumPercentage());
            reader.setLimitNumber(fessConfig.getSuggestUpdateContentsLimitNumAsInteger());