log4j2.xml

<!-- This log4j2.xml configuration file is meant for configuring JMeter's logging. Ideally, this file should be named
something more specific, like jmeter-log4j2.xml, but I couldn't figure out how to get JMeter to load a LOG4J2
configuration file other than the the conventional "log4j2.xml"

I copied and pasted the contents of this file from https://jmeter.apache.org/usermanual/get-started.html#logging and
added some tweaks.
 -->

<Configuration status="WARN" packages="org.apache.jmeter.gui.logging">

    <Appenders>

        <!-- The main log file appender to jmeter.log in the directory from which JMeter was launched, by default. -->
        <File name="jmeter-log" fileName="${sys:jmeter.logfile:-jmeter.log}" append="false">
            <PatternLayout>
                <!-- See the docs on Log4J2 patter layouts at https://logging.apache.org/log4j/2.x/manual/layouts.html
                "Pattern Layout" -->
                <pattern>%d{HH:mm:ss} %t %p %c{1.}: %m%n</pattern>
            </PatternLayout>
        </File>

        <!-- Log appender for GUI Log Viewer. See below. -->
        <GuiLogEvent name="gui-log-event">
            <PatternLayout>
                <pattern>%d %p %c{1.}: %m%n</pattern>
            </PatternLayout>
        </GuiLogEvent>

    </Appenders>

    <Loggers>

        <!-- Root logger -->
        <Root level="info">
            <AppenderRef ref="jmeter-log"/>
            <AppenderRef ref="gui-log-event"/>
        </Root>

        <!--
          # Apache HttpClient logging config.  Useful debugging
        -->
        <Logger name="org.apache.http" level="error"/>
        <Logger name="org.apache.http.wire" level="error"/>

    </Loggers>

</Configuration>