assertTrue(fesenClient.prepareSearch("fess_crawler.queue").setQuery(QueryBuilders.termQuery("sessionId", "id2")).execute()
                .actionGet().getHits().getTotalHits().value > 0);

        urlQueueService.deleteAll();
        assertFalse(fesenClient.prepareSearch("fess_crawler.queue").setQuery(QueryBuilders.termQuery("sessionId", "id1")).execute()
                .actionGet().getHits().getTotalHits().value > 0);

        dataService.store(accessResult1);
        assertNotNull(dataService.getAccessResult("id1", "http://www.id1.com/"));

        dataService.deleteAll();

        assertNull(dataService.getAccessResult("id1", "http://www.id1.com/"));
        assertNull(dataService.getAccessResult("id2", "http://www.id2.com/"));
    }

        }
    }

    protected void deleteBySessionId(final String sessionId) {
        delete(builder -> builder.setQuery(QueryBuilders.termQuery(SESSION_ID, sessionId)));
    }

    public void deleteAll() {
        delete(builder -> builder.setQuery(QueryBuilders.matchAllQuery()));
    }

    public void delete(final Consumer<SearchRequestBuilder> callback) {
        SearchResponse response = getClient().get(c -> {

	}

	if len(buffer) > int(fi.Erasure.BlockSize) {
		buffer = buffer[:fi.Erasure.BlockSize]
	}

	partName := "part.1"
	tempErasureObj := pathJoin(uniqueID, fi.DataDir, partName)

	defer er.deleteAll(context.Background(), minioMetaTmpBucket, tempObj)

	var inlineBuffers []*bytes.Buffer
	if globalStorageClass.ShouldInline(erasure.ShardFileSize(data.ActualSize()), opts.Versioned) {

	})
}

func (p *xlStorageDiskIDCheck) DeleteVol(ctx context.Context, volume string, forceDelete bool) (err error) {
	ctx, done, err := p.TrackDiskHealth(ctx, storageMetricDeleteVol, volume)
	if err != nil {
		return err
	}
	defer done(0, &err)

	w := xioutil.NewDeadlineWorker(globalDriveConfig.GetMaxTimeout())
	return w.Run(func() error { return p.storage.DeleteVol(ctx, volume, forceDelete) })
}

	// as CreatedTime.
	createdTime := st.ModTime()
	return VolInfo{
		Name:    volume,
		Created: createdTime,
	}, nil
}

// DeleteVol - delete a volume.
func (s *xlStorage) DeleteVol(ctx context.Context, volume string, forceDelete bool) (err error) {
	// Verify if volume is valid and it exists.
	volumeDir, err := s.getVolDir(volume)
	if err != nil {
		return err
	}