Description of problem: Live migration would fail if free_ram_mb is less than the memory of the instance. If the host is overcommitted this is very easy to happen. Version-Release number of selected component (if applicable): python-nova-12.0.3-11.el7ost.noarch How reproducible: 100% Upstream bug: https://review.openstack.org/#/c/180151/ Actual results: The live migration will fail with: ERROR (BadRequest): Migration pre-check error: Unable to migrate XXXXXXXX to XXXXXXXX: Lack of memory(host:-10883 <= instance:2048) (HTTP 400) (Request-ID: XXXXXXXX) Expected results: The live migration should succeed Additional info:
Hi, Sorry for the disturb but do we have any progress on the backport ? Best Regards, Chen
Hi Jon, The customer is using something like: python-nova-2015.1.2-18.el7ost.noarch So I'm wondering can I upgrade the nova packages from 1.2 to 1.4 directly ? Best Regards, Chen
Hi Jon, I hope we could have a 2015-1.2-18 hotfix to reduce the high risk from upgrading nova. This customer doesn't have a test environment. Best Regards, Chen
Mike - this patch was submitted for osp7. Does this need to be extended to other versions?
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHBA-2016-2025.html