defer func() {
			stopFn(res)
		}()

		doneSz := globalScannerMetrics.timeSize(scannerMetricReadMetadata)
		buf, err := s.readMetadata(ctx, item.Path)
		doneSz(len(buf))
		res["metasize"] = strconv.Itoa(len(buf))
		if err != nil {
			res["err"] = err.Error()
			return sizeSummary{}, errSkipFile
		}

		// Remove filename which is the meta file.
		item.transformMetaDir()

  private void testThreshold(
      int fileThreshold, int dataSize, boolean singleByte, boolean resetOnFinalize)
      throws IOException {
    byte[] data = newPreFilledByteArray(dataSize);
    FileBackedOutputStream out = new FileBackedOutputStream(fileThreshold, resetOnFinalize);
    ByteSource source = out.asByteSource();
    int chunk1 = min(dataSize, fileThreshold);
    int chunk2 = dataSize - chunk1;

			return nil, config.ErrInvalidNumberOfErasureEndpoints(nil).Msg(msg)
		}

		// Final set size with all the symmetry accounted for.
		setSize = commonSetDriveCount(commonSize, setCounts)
	}

	// Check whether setSize is with the supported range.
	if !isValidSetSize(setSize) {

		{name: "dir1/dira/dbfile", size: 200000},
		{name: "dir1/dira/dirasub/dcfile", size: 1000000},
		{name: "dir1/dira/dirasub/sublevel3/dccccfile", size: 10},
	}
	createUsageTestFiles(t, base, bucket, files)

	getSize := func(item scannerItem) (sizeS sizeSummary, err error) {
		if item.Typ&os.ModeDir == 0 {
			var s os.FileInfo
			s, err = os.Stat(item.Path)
			if err != nil {
				return
			}
			sizeS.totalSize = s.Size()

  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,

            return StringUtil.EMPTY_STRINGS;
        }
        final SearchResponse response = client.prepareSearch(index).setQuery(QueryBuilders.termQuery(fessConfig.getIndexFieldUrl(), url))
                .setFetchSource(false).setSize(fessConfig.getPageScoreBoosterMaxFetchSizeAsInteger()).execute().actionGet(requestTimeout);
        return Arrays.stream(response.getHits().getHits()).map(SearchHit::getId).toArray(n -> new String[n]);
    };

	updatePath, closeDisk := globalScannerMetrics.currentPathUpdater(basePath, cache.Info.Name)
	defer closeDisk()

	s := folderScanner{
		root:                  basePath,
		getSize:               getSize,
		oldCache:              cache,
		newCache:              dataUsageCache{Info: cache.Info},
		updateCache:           dataUsageCache{Info: cache.Info},
		dataUsageScannerDebug: false,
		healObjectSelect:      0,

            searchEngineClient.scrollSearch(fessConfig.getIndexDocumentUpdateIndex(), requestBuilder -> {
                requestBuilder.setQuery(queryBuilder).setSize((int) numFound);
                if (fields != null) {
                    requestBuilder.setFetchSource(fields, null);
                }
                return true;
            }, entity -> {

    }

    protected void showFileFieldParameter(final DiskFileItem item) {
        if (logger.isDebugEnabled()) {
            logger.debug("[param] {}:{name={}, size={}}", item.getFieldName(), item.getName(), item.getSize());
        }
    }

    // ===================================================================================
    //                                                                       Add Parameter

                if (!roleSet.isEmpty()) {
                    queryHelper.buildRoleQuery(roleSet, boolQuery);
                }
            }
            builder.setQuery(boolQuery);
            builder.setSize(fessConfig.getPagingSearchPageMaxSizeAsInteger());
            builder.setFetchSource(fields, null);
            queryHelper.processSearchPreference(builder, userBean, String.join(StringUtil.EMPTY, docIds));