XenServer (xenapi) live migration support
libvirt/KVM has support for live-migration between hosts. XenApi support needs to be added.
This excludes block migration.
Blueprint information
- Status:
- Complete
- Approver:
- Vish Ishaya
- Priority:
- Medium
- Drafter:
- Nova Feature Parity Team
- Direction:
- Approved
- Assignee:
- John Garbutt
- Definition:
- Approved
- Series goal:
- Accepted for folsom
- Implementation:
-
Implemented
- Milestone target:
-
2012.2
- Started by
- John Garbutt
- Completed by
- John Garbutt
Related branches
Related bugs
Sprints
Whiteboard
Once host-aggregates is complete, we can use the XenServer/XCP pool concept, along with shared storage configured as the default storage on that pool, to allow live migration of some images.
Currently Amazon style three part images are loaded into Dom0's file system, so there would need to be lots of work to copy these between the hosts to ensure the VM can boot.
As a first step, it is best to concentrate on images without an external kernel and ramdisk.
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Currently working in this branch:
https:/
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Here is what I plan to do next:
* Step 1: Pool-based live migration (pool/host-
* Step 2: Refactor live migration checks so libvirt checks are not in common code path
* Step 3: Add tests into Tempest for live migration
Maybe things for post-Folsom:
* Support live migration with external ram disk and kernel
* Live-migration without specifying the destination
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Gerrit topic: https:/
Addressed by: https:/
blueprint xenapi-
Addressed by: https:/
Partially implements blueprint xenapi-
Gerrit topic: https:/
Gerrit topic: https:/
Addressed by: https:/
[WIP] XenAPI: Fix vm live migration problem with volume
Work Items
Work items:
pool-based shared storage live-migration: DONE
refactor libvirt checks to enable the above: INPROGRESS
tempest tests: POSTPONED
Dependency tree
* Blueprints in grey have been implemented.
