Please change log4j.logger.kafka=DEBUG, kafkaAppender And it will work.
Jacek > On Apr 10, 2020, at 07:51, deadwind4 <deadwi...@outlook.com> wrote: > > Hi > > > I wanna change kafka log to DEBUG level > > > I change option log4j.rootLogger=DEBUG, stdout, kafkaAppender in > log4j.properties file > > > but in logs/server.log I still see logs without any DEBUG message. why? > > > Thank you.