for k, v := range b.cachesRoot {
		tmp := make([]string, len(v))
		copy(tmp, v)
		dst2[k] = tmp
	}

	return dst, dst2
}

// deleteAll will delete all on disk data for ALL caches.
// Deletes are performed concurrently.
func (b *bucketMetacache) deleteAll() {
	ctx := context.Background()

	objAPI := newObjectLayerFn()
	if objAPI == nil {
		return
	}

	ez, ok := objAPI.(deleteAllStorager)

        assertEquals(elevateWord3.getElevateWord(), settings.elevateWord().get()[1].getElevateWord());

        settings.elevateWord().deleteAll();
        assertEquals(0, settings.elevateWord().get().length);
    }

        assertEquals(2, settings.badword().get(false).length);
        assertEquals(value1, settings.badword().get(false)[0]);
        assertEquals(value3, settings.badword().get(false)[1]);

        settings.badword().deleteAll();
        assertEquals(0, settings.badword().get(false).length);
    }

     *
     * @return true if the operation was successful, false otherwise.
     */
    public boolean deleteAllWords() {
        final SuggestDeleteResponse response = suggester.indexer().deleteAll();
        if (response.hasError()) {
            logger.warn("Failed to delete all words.", response.getErrors().get(0));
            return false;
        }
        refresh();
        return true;
    }

     * Deletes all failure URL logs.
     *
     * @return JSON response with result status
     */
    @Execute
    public JsonResponse<ApiResult> delete$all() {
        try {
            failureUrlService.deleteAll(failureUrlPager);
            failureUrlPager.clear();
            saveInfo(messages -> messages.addSuccessFailureUrlDeleteAll(GLOBAL));
        } catch (final Exception e) {

                .execute()
                .actionGet()
                .getHits()
                .getTotalHits()
                .value() > 0);

        urlQueueService.deleteAll();
        assertFalse(fesenClient.prepareSearch("fess_crawler.queue")
                .setQuery(QueryBuilders.termQuery("sessionId", "id1"))
                .execute()
                .actionGet()

 * <li>{@link #deleteByQuery(String)} - Delete suggest items by query string.
 * <li>{@link #deleteByQuery(QueryBuilder)} - Delete suggest items by query builder.
 * <li>{@link #deleteAll()} - Delete all suggest items.
 * <li>{@link #deleteDocumentWords()} - Delete document words.
 * <li>{@link #deleteQueryWords()} - Delete query words.
 * <li>{@link #indexFromQueryLog(QueryLog)} - Index from a single query log.

        return redirect(getClass());
    }

    /**
     * Delete all crawling info.
     * @return The HTML response.
     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse deleteall() {
        verifyToken(this::asListHtml);
        crawlingInfoService.deleteOldSessions(processHelper.getRunningSessionIdSet());
        crawlingInfoPager.clear();

func ExecObjectLayerTest(t TestErrHandler, objTest objTestType) {
	{
		ctx, cancel := context.WithCancel(context.Background())
		if localMetacacheMgr != nil {
			localMetacacheMgr.deleteAll()
		}

		objLayer, fsDir, err := prepareFS(ctx)
		if err != nil {
			t.Fatalf("Initialization of object layer failed for single node setup: %s", err)
		}
		setObjectLayer(objLayer)

		if disk != nil {
			wg.Add(1)
			go func(disk StorageAPI) {
				defer wg.Done()
				er.cleanupStaleUploadsOnDisk(ctx, disk)
			}(disk)
		}
	}
	wg.Wait()
}

func (er erasureObjects) deleteAll(ctx context.Context, bucket, prefix string) {
	var wg sync.WaitGroup
	for _, disk := range er.getDisks() {
		if disk == nil {
			continue
		}
		wg.Add(1)
		go func(disk StorageAPI) {
			defer wg.Done()