Re: [openstack-dev] [nova][libvirt] Block migrations and Cinder volumes

2015-04-02 Thread Matthew Gilliard
Thanks for the clarification, is there a bug tracking this in libvirt already? Actually I don't think there is one, so feel free to file one I took the liberty of doing so: https://bugzilla.redhat.com/show_bug.cgi?id=1208588 On Wed, Mar 18, 2015 at 6:11 PM, Daniel P. Berrange

Re: [openstack-dev] [nova][libvirt] Block migrations and Cinder volumes

2015-03-18 Thread Daniel P. Berrange
On Wed, Mar 18, 2015 at 08:33:26AM +0100, Thomas Herve wrote: Interesting bug. I think I agree with you that there isn't a good solution currently for instances that have a mix of shared and not-shared storage. I'm curious what Daniel meant by saying that marking the disk shareable is

Re: [openstack-dev] [nova][libvirt] Block migrations and Cinder volumes

2015-03-18 Thread Daniel P. Berrange
On Tue, Mar 17, 2015 at 01:33:26PM -0700, Joe Gordon wrote: On Thu, Jun 19, 2014 at 1:38 AM, Daniel P. Berrange berra...@redhat.com wrote: On Wed, Jun 18, 2014 at 11:09:33PM -0700, Rafi Khardalian wrote: I am concerned about how block migration functions when Cinder volumes are

Re: [openstack-dev] [nova][libvirt] Block migrations and Cinder volumes

2015-03-18 Thread Joe Gordon
On Wed, Mar 18, 2015 at 3:09 AM, Daniel P. Berrange berra...@redhat.com wrote: On Wed, Mar 18, 2015 at 08:33:26AM +0100, Thomas Herve wrote: Interesting bug. I think I agree with you that there isn't a good solution currently for instances that have a mix of shared and not-shared

Re: [openstack-dev] [nova][libvirt] Block migrations and Cinder volumes

2015-03-18 Thread Thomas Herve
Interesting bug. I think I agree with you that there isn't a good solution currently for instances that have a mix of shared and not-shared storage. I'm curious what Daniel meant by saying that marking the disk shareable is not as reliable as we would want. I think this is the bug I

Re: [openstack-dev] [nova][libvirt] Block migrations and Cinder volumes

2015-03-18 Thread Daniel P. Berrange
On Wed, Mar 18, 2015 at 10:59:19AM -0700, Joe Gordon wrote: On Wed, Mar 18, 2015 at 3:09 AM, Daniel P. Berrange berra...@redhat.com wrote: On Wed, Mar 18, 2015 at 08:33:26AM +0100, Thomas Herve wrote: Interesting bug. I think I agree with you that there isn't a good solution

Re: [openstack-dev] [nova][libvirt] Block migrations and Cinder volumes

2015-03-17 Thread Joe Gordon
On Thu, Jun 19, 2014 at 1:38 AM, Daniel P. Berrange berra...@redhat.com wrote: On Wed, Jun 18, 2014 at 11:09:33PM -0700, Rafi Khardalian wrote: I am concerned about how block migration functions when Cinder volumes are attached to an instance being migrated. We noticed some unexpected

Re: [openstack-dev] [nova][libvirt] Block migrations and Cinder volumes

2015-03-17 Thread Chris Friesen
On 03/17/2015 02:33 PM, Joe Gordon wrote: Digging up this old thread because I am working on getting multi node live migration testing working (https://review.openstack.org/#/c/165182/), and just ran into this issue (bug 1398999). And I am not sure I agree with this statement. I think there is

Re: [openstack-dev] [nova][libvirt] Block migrations and Cinder volumes

2015-02-16 Thread Daniel P. Berrange
On Mon, Feb 16, 2015 at 01:39:21PM +1300, Robert Collins wrote: On 19 June 2014 at 20:38, Daniel P. Berrange berra...@redhat.com wrote: On Wed, Jun 18, 2014 at 11:09:33PM -0700, Rafi Khardalian wrote: I am concerned about how block migration functions when Cinder volumes are attached to an

Re: [openstack-dev] [nova][libvirt] Block migrations and Cinder volumes

2015-02-15 Thread Robert Collins
On 19 June 2014 at 20:38, Daniel P. Berrange berra...@redhat.com wrote: On Wed, Jun 18, 2014 at 11:09:33PM -0700, Rafi Khardalian wrote: I am concerned about how block migration functions when Cinder volumes are attached to an instance being migrated. We noticed some unexpected behavior

Re: [openstack-dev] [nova][libvirt] Block migrations and Cinder volumes

2015-02-15 Thread Tony Breeds
On Mon, Feb 16, 2015 at 01:39:21PM +1300, Robert Collins wrote: Just ran across this from bug https://bugs.launchpad.net/nova/+bug/1398999. Is there some way to signal to libvirt that some block devices shouldn't be migrated by it but instead are known to be networked etc? Or put another way,

Re: [openstack-dev] [nova][libvirt] Block migrations and Cinder volumes

2014-06-19 Thread Daniel P. Berrange
On Wed, Jun 18, 2014 at 11:09:33PM -0700, Rafi Khardalian wrote: I am concerned about how block migration functions when Cinder volumes are attached to an instance being migrated. We noticed some unexpected behavior recently, whereby attached generic NFS-based volumes would become entirely

Re: [openstack-dev] [nova][libvirt] Block migrations and Cinder volumes

2014-06-19 Thread Ronen Kat
][libvirt] Block migrations and Cinder volumes On Wed, Jun 18, 2014 at 11:09:33PM -0700, Rafi Khardalian wrote: I am concerned about how block migration functions when Cinder volumes are attached to an instance being migrated. We noticed some unexpected behavior recently, whereby attached

Re: [openstack-dev] [nova][libvirt] Block migrations and Cinder volumes

2014-06-19 Thread Duncan Thomas
:Re: [openstack-dev] [nova][libvirt] Block migrations and Cinder volumes On Wed, Jun 18, 2014 at 11:09:33PM -0700, Rafi Khardalian wrote: I am concerned about how block migration functions when Cinder volumes are attached to an instance being migrated. We