Code review comment for lp:~sandy-walsh/nova/zones3

8: Ahh! How did nova.db get into nova.api? I must have missed this in the last branch. It would be nice to abstract this in nova/scheduler or a nova/zones/ package.

Should SchedulerDependentManager just be in nova/manager.py?

As for using a DB to store this data (Todd's comment), we need to move away from compute/network/volume hosts writing to the DB directly for security concerns. We should be using the msg queue for all communications/data and let the scheduler verify the source once we have a mechanism to do so.