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

        // set function score
        final QueryBuilder functionScoreQuery = buildFunctionScoreQuery(query, q);
        builder.addSort("_score", SortOrder.DESC);

        // set filter query.
        final List<QueryBuilder> filterList = new ArrayList<>(10);
        if (!tags.isEmpty()) {

                final int maxDocumentCacheSize = fessConfig.getIndexerWebfsMaxDocumentCacheSizeAsInteger();
                builder.setSize(maxDocumentCacheSize <= 0 ? 1 : maxDocumentCacheSize);
                builder.addSort(OpenSearchAccessResult.CREATE_TIME, SortOrder.ASC);
            };

            final DocList docList = new DocList();
            final List<OpenSearchAccessResult> accessResultList = new ArrayList<>();

                builder.setQuery(QueryBuilders.matchAllQuery());
            }
            if (sortBuilders != null) {
                for (SortBuilder<?> sortBuilder : sortBuilders) {
                    builder.addSort(sortBuilder);
                }
            }
            if (from != null) {
                builder.setFrom(from);
            }
            if (size != null) {
                builder.setSize(size);

         */
        protected void buildSort(final QueryContext queryContext, final QueryFieldConfig queryFieldConfig, final FessConfig fessConfig) {
            queryContext.sortBuilders().forEach(sortBuilder -> searchRequestBuilder.addSort(sortBuilder));
        }

        /**
         * Builds the rescorer configuration.
         *
         * @param queryHelper the query helper

}

// syncToAllPeers is used for syncing local data to all remote peers, it is
// called once during initial "AddPeerClusters" request.
func (c *SiteReplicationSys) syncToAllPeers(ctx context.Context, addOpts madmin.SRAddOptions) error {
	objAPI := newObjectLayerFn()
	if objAPI == nil {
		return errSRObjectLayerNotReady
	}

	buckets, err := objAPI.ListBuckets(ctx, BucketOptions{})
	if err != nil {