OpenStack Compute (nova)

Move Live Migrations To Conductor

Registered by Dan Smith on 2013-04-25

Live migrations should be unified with the new conductor-resident unified code path(s) for migration.

Blueprint information

Status:: Started

Approver:: Russell Bryant

Priority:: Undefined

Drafter:: John Garbutt

Direction:: Needs approval

Assignee:: John Garbutt

Definition:: Review

Series goal:: None

Implementation:: Slow progress

Milestone target:: None

Started by: John Garbutt on 2013-05-13

Related branches

Related bugs

Sprints

Whiteboard

This patch needs an almighty rebase/rework, with some concerns over rpc compat
https://review.openstack.org/#/c/32593/

Gerrit topic: https://review.openstack.org/#q,topic:bp/live-migration-to-conductor,n,z

Addressed by: https://review.openstack.org/28965
Live migrate api calls conductor not compute api

Addressed by: https://review.openstack.org/29077
Extract live-migration scheduler logic from the scheduler driver

Addressed by: https://review.openstack.org/30868
Move live-migration control flow from scheduler to conductor

Addressed by: https://review.openstack.org/32593
Move live-migrate compute control flow into the conductor

Addressed by: https://review.openstack.org/64875
Remove compute_rpcapi.remove_volume_connection

Addressed by: https://review.openstack.org/64876
Move pre_live_migration call to the conductor

Addressed by: https://review.openstack.org/65076
Add post_live_migration_at_source method

Addressed by: https://review.openstack.org/65090
Move post/rollback_live_migrate to the conductor

Gerrit topic: https://review.openstack.org/#q,topic:bp/live-migrate-instance-actions,n,z

This blueprint has been deferred from the icehouse-3 milestone to Juno because it missed the "feature proposal freeze" deadline. https://wiki.openstack.org/wiki/Icehouse_Release_Schedule --russellb

Unapproved - please re-submit via nova-spec --johnthetubagy (20th March 2014)

Removed from next, as next is now reserved for near misses from the last milestone --johnthetubaguy

(?)

Work Items

Work items:
Call conductor from api, not scheduler (in H): DONE
Move logic from scheduler into conductor (in H): DONE
Move control flow from scheduler to conductor (in H): DONE
Move logic and control flow from compute manager into conductor (in Icehouse): INPROGRESS