Production appian_log4j.properties file

As I'm sure you are aware, Appian 19.4 has around 145 log files.  I'm new to administering Appian, but not to Java applications using Log4j.  For an on-premise production environment, I'd typically expect to set the log level to WARN to filter out events that are not exceptional (e.g., problems).  Reviewing appian_log4j.properties, it looks like there are lots of opportunities to reduce what's logged.

I'd like to reduce logging to a minimum, while maintaining Appian Health Check functionality, logging information I need for the Appian scaling guidelines, and accomplishing cyber-security monitoring and audit.  Does anyone know of any guidance or exemplar configuration file for a production Appian environment?

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