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On 02/02/2015 05:58 AM, Daniel P. Berrange wrote:
> On Sun, Feb 01, 2015 at 11:20:08AM -0800, Noel Burton-Krahn wrote:
>> Thanks for bringing this up, Daniel.  I don't think it makes sense to have
>> a timeout on live migration, but operators should be able to cancel it,
>> just like any other unbounded long-running process.  For example, there's
>> no timeout on file transfers, but they need an interface report progress
>> and to cancel them.  That would imply an option to cancel evacuation too.
> There has been periodic talk about a generic "tasks API" in Nova for managing
> long running operations and getting information about their progress, but I
> am not sure what the status of that is. It would obviously be applicable to
> migration if that's a route we took.

Currently the status of a tasks API is that it would happen after the 
API v2.1 microversions work has created a suitable framework in which to 
add tasks to the API.

>
> Regards,
> Daniel