```
touch /tmp/aaa.csv

CREATE TABLE log (A String) ENGINE= FileLog('/tmp/aaa.csv', 'CSV');
DB::Exception: The absolute data path should be inside `user_files_path`(/var/lib/clickhouse/user_files/). (BAD_ARGUMENTS)


CREATE TABLE log (A String) ENGINE= FileLog('/tmp/aaa.csv', 'CSV');
DB::Exception: Metadata files already exist by path: /var/lib/clickhouse/.filelog_storage_metadata/default/log, remove them manually if it is intended. (TABLE_METADATA_ALREADY_EXISTS)
```
}
        auto physical_cpu_cores = getNumberOfPhysicalCPUCores();
        auto num_threads = filelog_settings->max_threads.value;
        if (!num_threads) 
        {
            num_threads = std::max(unsigned(1), physical_cpu_cores / 4);
            filelog_settings->set("max_threads", num_threads);
        }
        else if (num_threads > physical_cpu_cores)
        {
            throw Exception(ErrorCodes::BAD_ARGUMENTS, "Number of threads to parse files can not be bigger than {}", physical_cpu_cores);
        }
        else if (num_threads < 1)
        {
            throw Exception("Number of threads to parse files can not be lower than 1", ErrorCodes::BAD_ARGUMENTS);
        }
        if (filelog_settings->max_block_size.changed && filelog_settings->max_block_size.value < 1)
        {
            throw Exception("filelog_max_block_size can not be lower than 1", ErrorCodes::BAD_ARGUMENTS);
        }
        if (filelog_settings->poll_max_batch_size.changed && filelog_settings->poll_max_batch_size.value < 1)
        {
            throw Exception("filelog_poll_max_batch_size can not be lower than 1", ErrorCodes::BAD_ARGUMENTS);
        }
        size_t init_sleep_time = filelog_settings->poll_directory_watch_events_backoff_init.totalMilliseconds();
        size_t max_sleep_time = filelog_settings->poll_directory_watch_events_backoff_max.totalMilliseconds();
        if (init_sleep_time > max_sleep_time)
        {
            throw Exception(
                "poll_directory_watch_events_backoff_init can not be greater than poll_directory_watch_events_backoff_max",