That worked:
3001 27849 27841 2 10:03 ? 00:00:00 /usr/bin/python2.6 /usr/lib/python2.6/site-packages/ambari_agent/main.py start
Of course that doesn’t solve the problem unless I ran that command whenever I want to start ambari-agent. Is there a known issue with the ini setting not working or taking effect? Or is there some additional configuration that I am missing?