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Re: KVM live block migration: stability, future, docs

 

On 08/07/2012 09:42 PM, Blair Bethwaite wrote:
> On 8 August 2012 11:33, Jay Pipes <jaypipes@xxxxxxxxx> wrote:
>> Sorry, from your original post, I didn't think you were referring to
>> live migration, but rather just server migration. You had written
>> "Compared to regular (non-block) live migrate", but I read that as
>> "Compared to regular migrate" and thought you were referring to the
>> server migration behaviour that Nova supports... sorry about that!
> 
> Jay, is your use of the wording "behaviour that Nova supports" there,
> significant? I mean, you're not trying to indicate that Nova does not
> support _live_ migration, are you?

No, I was referring to the differentiation between server migration in
Nova and live migration in Nova. In other words, the difference between:

$> nova migrate <SERVER> ...

and

$> nova live-migrate <SERVER> ...

> Anyway, I found this relevant and stale bug:
> https://bugs.launchpad.net/nova/+bug/883845. VIR_MIGRATE_LIVE remains
> undefined in https://github.com/openstack/nova/blob/master/nova/virt/libvirt/driver.py.
> We only just discovered the lack of this as a default option, so we'll
> test further, this time with VIR_MIGRATE_LIVE=1 explicitly specified
> in nova.conf...

OK, cheers,
-jay


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