For some reasons when we delete a MergeTree Part in atomic way something may go wrong - and leave the `delete_tmp_*` folder or it's part on disk. This may lead to a disk space consumption over time.

It's suggested to delete this folders at least at server start-up. Current solution with `clearOldTemporaryDirectories()` doesn't work because this method is called periodically from a thread without any locks or advisory on folders - it may cause the race conditions.
}
    parts.clear();
    auto delete_parts_from_fs_and_rollback_in_case_of_error = [this] (const DataPartsVector & parts_to_delete, const String & parts_type)
    {
        NameSet parts_failed_to_delete;
        clearPartsFromFilesystem(parts_to_delete, false, &parts_failed_to_delete);
        DataPartsVector finally_remove_parts;
        if (!parts_failed_to_delete.empty())
        {
            DataPartsVector rollback_parts;
            for (const auto & part : parts_to_delete)
            {
                if (!parts_failed_to_delete.contains(part->name))
                    finally_remove_parts.push_back(part);
                else
                    rollback_parts.push_back(part);
            }
            if (!rollback_parts.empty())
                rollbackDeletingParts(rollback_parts);
        }
        else  
        {
            finally_remove_parts = parts_to_delete;
        }
        try
        {
            removePartsFinally(finally_remove_parts);
            LOG_DEBUG(log, "Removed {} {} parts", finally_remove_parts.size(), parts_type);
        }
        catch (...)