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I think you’re correct: it looks like the change you identified covers only the migrate code path but doesn’t address live migration. As identified in the comments on the bug report [1], it would be beneficial at least to raise to reasonable error message.

I also found an abandoned change for the bug: https://review.openstack.org/#/c/80029/

Joel


From: Rui Chen [mailto:chenrui.momo at gmail.com]
Sent: Friday, May 08, 2015 4:20 AM
To: OpenStack Development Mailing List (not for usage questions)
Subject: [openstack-dev] [nova] Is Live-migration not supported in CONF.libvirt.images_type=lvm case?

Hi all:

    I find the bug [1] "block/live migration doesn't work with LVM as libvirt storage" is marked as 'Fix released', but I don't think this issue really is solved, I check the live-migration code and don't find any logic for handling LVM disk. Please correct me if I'm wrong.

In the bug [1] comments, the only related merged patch is https://review.openstack.org/#/c/73387/ , it cover the 'resize/migrate' code path, not live-migration, and I don't think this bug [1] is duplicate with bug [2], they are the different use case, live-migration and migration.

So should we reopen this bug and add some documentation to describe that live-migration is not supported in current code?

[1]: https://bugs.launchpad.net/nova/+bug/1282643
[2]: https://bugs.launchpad.net/nova/+bug/1270305
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