<clickhouse>
    <logger>
        <!--
            Possible levels: ["none", "fatal", "critical", "error", "warning", "notice", "information", "debug", "trace", "test"]
            See: https://github.com/pocoproject/poco/blob/poco-1.9.4-release/Foundation/include/Poco/Logger.h#L105-L114
        -->
        <level>warning</level>
    </logger>
    <!-- Official recommendations for systems with <16GB RAM -->
    <mark_cache_size>524288000</mark_cache_size> <!-- 500MB -->
    <concurrent_threads_soft_limit_num>1</concurrent_threads_soft_limit_num>
    <profiles>
        <default>
        <max_block_size>8192</max_block_size>
        <max_download_threads>1</max_download_threads>
        <input_format_parallel_parsing>0</input_format_parallel_parsing>
        <output_format_parallel_formatting>0</output_format_parallel_formatting>
        </default>
    </profiles>
</clickhouse>