How can log4j2 be configured to determine if logging is output asynchronously?

By default, in log4j2, logs are output asynchronously. log4j2 employs async loggers to enhance performance.

It is possible to change the way logs are output by configuring the file. You can check if the logs are being output asynchronously by the following method.

1. Open the configuration file for log4j2, usually named log4j2.xml or log4j2.properties.
2. Check for the following configuration items:

<AsyncLogger name="org.example.SomeLogger" level="info" additivity="false">
    <AppenderRef ref="SomeAppender"/>
</AsyncLogger>

Please note that AsyncLogger is used for logging asynchronously.

1. If the above configuration items are included, it means that the logs are output asynchronously. If they are not included, it means that the logs are output synchronously.