ClickHouse/tests/integration/test_user_zero_database_access/configs/config.xml

<clickhouse>
    <logger>
        <level>trace</level>
        <log>/var/log/clickhouse-server/clickhouse-server.log</log>
        <errorlog>/var/log/clickhouse-server/clickhouse-server.err.log</errorlog>
        <size>1000M</size>
        <count>10</count>
    </logger>

    <tcp_port>9000</tcp_port>
    <listen_host>127.0.0.1</listen_host>

    <openSSL>
        <client>
            <cacheSessions>true</cacheSessions>
            <verificationMode>none</verificationMode>
            <invalidCertificateHandler>
                <name>AcceptCertificateHandler</name>
            </invalidCertificateHandler>
        </client>
    </openSSL>

    <max_concurrent_queries>500</max_concurrent_queries>
    <mark_cache_size>5368709120</mark_cache_size>
    <path>./clickhouse/</path>
    <users_config>users.xml</users_config>

    <max_table_size_to_drop>1</max_table_size_to_drop>
    <max_partition_size_to_drop>1</max_partition_size_to_drop>
</clickhouse>