[openstack-dev] why don't we deal with "claims" when live migrating an instance?

Chris Friesen chris.friesen at windriver.com
Wed Jan 15 20:32:36 UTC 2014

When we create a new instance via _build_instance() or 
_build_and_run_instance(), in both cases we call instance_claim() to 
reserve and test for resources.

During a cold migration I see us calling prep_resize() which calls 

How come we don't need to do something like this when we live migrate an 
instance?  Do we track the hypervisor overhead somewhere in the instance?


More information about the OpenStack-dev mailing list