When you have VM role deployed with Windows Azure connect endpoint software is installed, you may see the integrator.log file could grow very fast. This log is located as below:
C:\Program Files\Windows Azure Connect\Endpoint\Logs\Integrator.log
When you deactivate Windows Azure Connect Service, Integrator.log stops growing, otherwise it grows very fast, about ~1MB per 5 secs.
This problem has been fixed in latest Windows Azure Connect modules so if you redeploy your role, it should pick up the new Windows Azure Connect integrator which includes fix for above described problem.