why log4j2 TimeBasedTriggeringPolicy is impacted by #Scheduled - log4j2

Question

I configured log4j2 with Policy of TimeBasedTriggeringPolicy, by which I expect that the log file can be rolled into a zip file every day at 00:00. But it doesn't happen.
<RollingFile name="RollingFile" ignoreExceptions="false" fileName="${log.file.dir}/aaa.log" filePattern="${log.file.dir}/$${date:yyyy-MM}/aaa-%d{yyyy-MM-dd}-%i.log.gz">
<PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss,SSS}:%4p %t (%F:%L) - %m%n" />
<Policies>
<OnStartupTriggeringPolicy />
<TimeBasedTriggeringPolicy />
<SizeBasedTriggeringPolicy size="128 MB" />
</Policies>
<DefaultRolloverStrategy max="1000"/>
</RollingFile>
And when I add a class like as follows, the system creates a zip file every day at 3:15.
#Component
public class Scheduler {
private final Logger logger = LoggerFactory.getLogger(this.getClass());
#Scheduled(cron="0 15 3 * * ?") //3:15 every day
public void doSomething() {
logger.info("3:15 every day");
}
}
It is quiet weird that the log4j2 rollup mechanism is impacted by the Spring #Schedule annotation, isn't it? Anyone knows how I can avoid this from happening? Thanks!

Answer 1

How often are you writing log records? The time based triggering policy only rolls over during the process of logging an event. The cron triggering policy uses a scheduler and performs the rollover from a thread so doesn't need an event to be logged to trigger it.