I just noticed razor-agent.log has been landing in / instead of /var/log as its conf specifies.
I noticed it because there was no more space on / -- NOT a good way to notice these things.
I fixed it, at least temporarily, by moving the file to /var/log where it belongs and linking to it from /.
i have the same issue
razor tends not to pay attention to any razor-agent.conf except one found in /etc/razor/