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.
{
    auto zookeeper = tryGetZooKeeper();
    const auto storage_settings_ptr = getSettings();
    res.is_leader = is_leader;
    res.can_become_leader = storage_settings_ptr->replicated_can_become_leader;
    res.is_readonly = is_readonly;
    res.is_session_expired = !zookeeper || zookeeper->expired();
    res.queue = queue.getStatus();
    res.absolute_delay = getAbsoluteDelay(); 
    res.parts_to_check = part_check_thread.size();
    res.zookeeper_path = zookeeper_path;
    res.replica_name = replica_name;
    res.replica_path = replica_path;
    res.columns_version = -1;
    res.log_max_index = 0;
    res.log_pointer = 0;
    res.total_replicas = 0;
    res.active_replicas = 0;
    res.last_queue_update_exception = getLastQueueUpdateException();
    if (with_zk_fields && !res.is_session_expired)
    {
        try
        {
            auto log_entries = zookeeper->getChildren(fs::path(zookeeper_path) / "log");
            if (!log_entries.empty())
            {