insertList.forEach(this::writeSearchLogEvent);
                updateList.forEach(this::writeSearchLogEvent);
            }
            // insert/update user info
            userInfoBhv.batchInsert(insertList);
            userInfoBhv.batchUpdate(updateList);
            // update search log
            searchLogList.stream().forEach(searchLog -> {
                searchLog.getUserInfo().ifPresent(userInfo -> {

            logger.debug("Storing {} thumbnail tasks.", list.size());
        }
        final ThumbnailQueueBhv thumbnailQueueBhv = ComponentUtil.getComponent(ThumbnailQueueBhv.class);
        thumbnailQueueBhv.batchInsert(list);
    }

    /**
     * Generates thumbnails using the provided executor service.
     *
     * @param executorService the executor service for parallel processing