final long numFound = getDocumentSizeByQuery(searchEngineClient, queryBuilder, fessConfig);
        final long maxSearchDocSize = fessConfig.getIndexerMaxSearchDocSizeAsInteger().longValue();
        final boolean exceeded = numFound > maxSearchDocSize;
        if (exceeded) {
            logger.warn("Max document size is exceeded({}>{}): {}", numFound, fessConfig.getIndexerMaxSearchDocSize(), queryBuilder);