magento-test/app/code/Magento/MysqlMq/etc/adminhtml/system.xml

<?xml version="1.0"?>
<!--
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Config:etc/system_file.xsd">
    <system>
        <section id="system">
            <group id="mysqlmq" translate="label comment" type="text" sortOrder="15" showInDefault="1">
                <label>MySQL Message Queue Cleanup</label>
                <comment>All the times are in minutes. Use "0" if you want to skip automatic clearance.</comment>
                <field id="retry_inprogress_after" translate="label" type="text" sortOrder="60" showInDefault="1">
                    <label>Retry Messages In Progress After</label>
                    <validate>validate-zero-or-greater validate-digits</validate>
                </field>
                <field id="successful_messages_lifetime" translate="label" type="text" sortOrder="50" showInDefault="1">
                    <label>Successful Messages Lifetime</label>
                    <validate>validate-zero-or-greater validate-digits</validate>
                </field>
                <field id="failed_messages_lifetime" translate="label" type="text" sortOrder="60" showInDefault="1">
                    <label>Failed Messages Lifetime</label>
                    <validate>validate-zero-or-greater validate-digits</validate>
                </field>
                <field id="new_messages_lifetime" translate="label" type="text" sortOrder="60" showInDefault="1">
                    <label>New Messages Lifetime</label>
                    <validate>validate-zero-or-greater validate-digits</validate>
                </field>
            </group>
        </section>
    </system>
</config>