yahoo-eng-team team mailing list archive

["Markus Zoeller \(markus_z\)" <mzoeller@xxxxxxxxxx>]

This is an old feature request (= "wishlist" bug report) which 
wasn't able to draw enough attention for an implementation. Also, 
the effort to implement this needs to be driven by a blueprint + spec 
file. I'm closing it as "Opinion".

If you want to work on this, consider reading [1] and create a blueprint
at [2] and a spec-file at [3]. If you need assistance, reach out on the
IRC channel #openstack-nova or use the mailing list.

References:
[1] https://wiki.openstack.org/wiki/Blueprints
[2] https://blueprints.launchpad.net/nova/
[3] https://github.com/openstack/nova-specs

** Changed in: nova
       Status: Confirmed => Opinion

** Changed in: nova
     Assignee: Jennifer Mulsow (jmulsow) => (unassigned)

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https://bugs.launchpad.net/bugs/1399815

Title:
  targeted migrations/evacuations skip scheduler validation

Status in OpenStack Compute (nova):
  Opinion

Bug description:
  This was observed in the Juno release.

  Because targeted live and cold migrations do not go through the
  scheduler for policy-based decision making, a VM could be migrated to
  a host that would violate the policy of the server-group.

  If a VM belongs to a server group, the group policy will need to be checked in the compute manager at the time of migration to ensure that:
  1. VMs in a server group with affinity rule can't be migrated.
  2. VMs in a server group with anti-affinity rule don't move to a host that would violate the rule.

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