One of my rhel 5 systems with ~4 guests was contacting rhn every 2 minutes (ie not using the caching at all). I thought this might have been what was causing bz 245013, but that does not appear to be the case.
James, can you provide more specific information on versions, etc.? This was working as of Satellite 500.
It's client side code. $> rpm -q --whatprovides /etc/cron.d/rhn-virtualization.cron rhn-virtualization-host-1.0.1-41 which now seems very old. Let me update and see what happens.
still happening with 1.0.1-53
Can't reproduce myself, and the original machine that showed the problem no longer is. Closing bug, but feel free to reopen.