How to send logging to log files?

edit

I have logging in my cpp files, like the following, and I'm trying to get the messages to appear in a file.

ROS_INFO_STREAM("testing");

I have these env vars to show where the logs should be placed, and how to config logging.

ROS_LOG_DIR = /tmp/node/etc/logs
ROSCONSOLE_CONFIG_FILE = /tmp/node/etc/rosconsole.config

And within the rosconsole.config file I have the following.

log4j.logger.ros=DEBUG

Any thoughts as to why I don't see my output in log files?