Re: [openstack-dev] [nova][libvirt] RFC: ensuring live migration ends

2015-02-02 Thread Daniel P. Berrange
On Mon, Feb 02, 2015 at 01:21:31PM -0500, Andrew Laski wrote: On 02/02/2015 11:26 AM, Daniel P. Berrange wrote: On Mon, Feb 02, 2015 at 11:19:45AM -0500, Andrew Laski wrote: 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:

Re: [openstack-dev] [nova][libvirt] RFC: ensuring live migration ends

2015-02-02 Thread Daniel P. Berrange
On Mon, Feb 02, 2015 at 08:24:20AM +1300, Robert Collins wrote: On 31 January 2015 at 05:47, Daniel P. Berrange berra...@redhat.com wrote: In working on a recent Nova migration bug https://bugs.launchpad.net/nova/+bug/1414065 I had cause to refactor the way the nova libvirt driver

Re: [openstack-dev] [nova][libvirt] RFC: ensuring live migration ends

2015-02-02 Thread Daniel P. Berrange
-dev] [nova][libvirt] RFC: ensuring live migration ends In working on a recent Nova migration bug https://bugs.launchpad.net/nova/+bug/1414065 I had cause to refactor the way the nova libvirt driver monitors live migration completion/failure/progress. This refactor has opened

Re: [openstack-dev] [nova][libvirt] RFC: ensuring live migration ends

2015-02-02 Thread Daniel P. Berrange
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

Re: [openstack-dev] [nova][libvirt] RFC: ensuring live migration ends

2015-02-02 Thread Vladik Romanovsky
5:56:56 AM Subject: Re: [openstack-dev] [nova][libvirt] RFC: ensuring live migration ends On Mon, Feb 02, 2015 at 08:24:20AM +1300, Robert Collins wrote: On 31 January 2015 at 05:47, Daniel P. Berrange berra...@redhat.com wrote: In working on a recent Nova migration bug

Re: [openstack-dev] [nova][libvirt] RFC: ensuring live migration ends

2015-02-02 Thread Daniel P. Berrange
On Mon, Feb 02, 2015 at 11:19:45AM -0500, Andrew Laski wrote: 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

Re: [openstack-dev] [nova][libvirt] RFC: ensuring live migration ends

2015-02-02 Thread Andrew Laski
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

Re: [openstack-dev] [nova][libvirt] RFC: ensuring live migration ends

2015-02-02 Thread Andrew Laski
On 02/02/2015 11:26 AM, Daniel P. Berrange wrote: On Mon, Feb 02, 2015 at 11:19:45AM -0500, Andrew Laski wrote: 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

Re: [openstack-dev] [nova][libvirt] RFC: ensuring live migration ends

2015-02-01 Thread Robert Collins
On 31 January 2015 at 05:47, Daniel P. Berrange berra...@redhat.com wrote: In working on a recent Nova migration bug https://bugs.launchpad.net/nova/+bug/1414065 I had cause to refactor the way the nova libvirt driver monitors live migration completion/failure/progress. This refactor has

Re: [openstack-dev] [nova][libvirt] RFC: ensuring live migration ends

2015-02-01 Thread Noel Burton-Krahn
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

[openstack-dev] [nova][libvirt] RFC: ensuring live migration ends

2015-01-30 Thread Daniel P. Berrange
In working on a recent Nova migration bug https://bugs.launchpad.net/nova/+bug/1414065 I had cause to refactor the way the nova libvirt driver monitors live migration completion/failure/progress. This refactor has opened the door for doing more intelligent active management of the live

Re: [openstack-dev] [nova][libvirt] RFC: ensuring live migration ends

2015-01-30 Thread Vladik Romanovsky
- Original Message - From: Daniel P. Berrange berra...@redhat.com To: openstack-dev@lists.openstack.org, openstack-operat...@lists.openstack.org Sent: Friday, 30 January, 2015 11:47:16 AM Subject: [openstack-dev] [nova][libvirt] RFC: ensuring live migration ends In working