Allow setting max downtime for libvirt live migrations

Registered by Chris St. Pierre on 2014-10-08

As of libvirt 1.2.9, the maximum downtime for a live migration is tunable during a migration, so it doesn't require any threading foolishness. We should make this configurable in nova.conf so that large instances can be migrated across relatively smaller network pipes.

Blueprint information

Status:
Not started
Approver:
None
Priority:
Undefined
Drafter:
Chris St. Pierre
Direction:
Needs approval
Assignee:
Chris St. Pierre
Definition:
Review
Series goal:
None
Implementation:
Unknown
Milestone target:
None

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Gerrit topic: https://review.openstack.org/#q,topic:bug/1378514,n,z

Addressed by: https://review.openstack.org/141826
    libvirt: Allow setting maxdowntime for live migrations

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