[ceph-users] logging to stdout/stderr causes huge container log file

Hi, With ceph 15.2.5 octopus, mon, mgd and rgw dump loggings on debug level to stdout/stderr. It causes huge container log file (/var/lib/docker/containers/<ID>/<ID>-json.log). Is there any way to stop dumping logs or change the logging level? BTW, I tried "ceph config set <service> log_to_stderr false". It doesn't help. Thanks! Tony