cycleInfoMu sync.Mutex
	cycleInfo   *currentScannerCycle
}

var globalScannerMetrics scannerMetrics

const (
	// START Realtime metrics, that only to records
	// last minute latencies and total operation count.
	scannerMetricReadMetadata scannerMetric = iota
	scannerMetricCheckMissing
	scannerMetricSaveUsage
	scannerMetricApplyAll
	scannerMetricApplyVersion
	scannerMetricTierObjSweep
	scannerMetricHealCheck

func (sys *BucketMetadataSys) init(ctx context.Context, buckets []string) {
	count := globalEndpoints.ESCount() * 10
	for {
		if len(buckets) < count {
			sys.concurrentLoad(ctx, buckets)
			break
		}
		sys.concurrentLoad(ctx, buckets[:count])
		buckets = buckets[count:]
	}

	sys.Lock()
	sys.initialized = true
	sys.Unlock()

	if globalIsDistErasure {

            AtomicInteger count = new AtomicInteger();
            String[] queryLogs = new String[] { field + ":検索", field + ":fess", field + ":検索エンジン" };

            @Override
            public QueryLog read() {
                if (count.get() >= queryLogs.length) {
                    return null;
                }
                return new QueryLog(queryLogs[count.getAndIncrement()], null);
            }

     *
     * @param accessResult the list of access results to update
     */
    void update(List<RESULT> accessResult);

    /**
     * Returns the count of access results for the given session ID.
     *
     * @param sessionId the session ID
     * @return the count of access results
     */
    int getCount(String sessionId);

    /**
     * Deletes access results for the given session ID.
     *

        final LanguageHelper languageHelper = ComponentUtil.getLanguageHelper();

        final StringBuilder resultBuf = new StringBuilder();

        try {
            final long count = searchEngineClient.updateByQuery(fessConfig.getIndexDocumentUpdateIndex(), option -> {
                if (queryBuilder != null) {
                    option.setQuery(queryBuilder);
                }

            jvmGcObj.count = c.getCollectionCount();
            jvmGcObj.time = c.getCollectionTime().getMillis();
            return jvmGcObj;
        }).toArray(n -> new JvmGcObj[n]);
        final Threads threads = jvmStats.getThreads();
        final JvmThreadsObj jvmThreadsObj = new JvmThreadsObj();
        jvmObj.threads = jvmThreadsObj;
        jvmThreadsObj.count = threads.getCount();

    }
  }

  private static final class CountingRunnable implements Runnable {
    int count;

    @Override
    public void run() {
      count++;
    }

    void assertNotRun() {
      assertEquals(0, count);
    }

    void assertRun() {
      assertEquals(1, count);
    }
  }

  private static void assertSetAsynchronously(AbstractFuture<Integer> future) {

     */
    public void setNumOfThread(final int numOfThread) {
        crawlerContext.numOfThread = numOfThread;
    }

    /**
     * Sets the maximum thread check count.
     * @param maxThreadCheckCount The maximum thread check count.
     */
    public void setMaxThreadCheckCount(final int maxThreadCheckCount) {
        crawlerContext.maxThreadCheckCount = maxThreadCheckCount;
    }

    /**

        }
        @SuppressWarnings("unchecked") // we only put Ts in it
        @Nullable T[] array = (@Nullable T[]) new Object[size];
        int count = 0;
        for (; count < size && iterator.hasNext(); count++) {
          array[count] = iterator.next();
        }
        for (int i = count; i < size; i++) {
          array[i] = null; // for GWT
        }

        List<@Nullable T> list = unmodifiableList(asList(array));

    super(
        asList(ConstructionPathway.values()),
        n -> n * log(n),
        ImmutableList.of(
            QueryOp.create(
                "count",
                (ms, o) -> {
                  int unused = ms.count(o);
                },
                Math::log)));
  }

  /** All the ways to create an ImmutableMultiset. */
  enum ConstructionPathway implements Construction<Multiset<Object>> {