Re: [Openstack-operators] Migrating an instance to a host with less cores fails

2015-09-25 Thread Steve Gordon
- Original Message - > From: "Chris Friesen" > To: openstack-operators@lists.openstack.org > > On 09/25/2015 12:34 PM, Steve Gordon wrote: > > > Nikola's reply got bounced because he isn't subscribed, but: > > > > """ > > Thanks Steve! > > > > So the below is likely the same root cause a

Re: [Openstack-operators] Migrating an instance to a host with less cores fails

2015-09-25 Thread David Medberry
As Kris Lindgren noted, this has bit us big time. Defaults appear wrong, desired behavior would be other than it is. I'm re-reading this entire thread now (sorry for not weighing in earlier.) On Fri, May 15, 2015 at 12:52 PM, Aubrey Wells wrote: > Greetings, > Trying to decide if this is a bug o

Re: [Openstack-operators] Migrating an instance to a host with less cores fails

2015-09-25 Thread Chris Friesen
On 09/25/2015 12:34 PM, Steve Gordon wrote: Nikola's reply got bounced because he isn't subscribed, but: """ Thanks Steve! So the below is likely the same root cause as this bug: https://launchpad.net/bugs/1461777 Which has been fixed in Liberty and backported to stable/kilo (see https://rev

Re: [Openstack-operators] Migrating an instance to a host with less cores fails

2015-09-25 Thread Chris Friesen
This is a long-standing issue. Nikola has been working on it in Liberty for the CPU pinning case, not sure about the non-pinned case. And of course patching back to Kilo hasn't been done yet. Aubrey, what you're seeing is definitely a bug. There is an existing bug https://bugs.launchpad.net

Re: [Openstack-operators] Migrating an instance to a host with less cores fails

2015-09-25 Thread Steve Gordon
- Original Message - > From: "Kris G. Lindgren" > To: "Steve Gordon" , "Aubrey Wells" > , "David Medberry" > > I believe TWC - (medberry on irc) was lamenting to me about cpusets, > different hypervisors HW configs, and unassigned vcpu's in numa nodes. > > The problem is the migration d

Re: [Openstack-operators] Migrating an instance to a host with less cores fails

2015-09-25 Thread Kris G. Lindgren
I believe TWC - (medberry on irc) was lamenting to me about cpusets, different hypervisors HW configs, and unassigned vcpu's in numa nodes. The problem is the migration does not re-define the domain.xml, specifically, the vcpu mapping to match what makes sense on the new host. I believe the is

Re: [Openstack-operators] Migrating an instance to a host with less cores fails

2015-09-25 Thread Steve Gordon
Adding Nikola as he has been working on this. - Original Message - > From: "Aubrey Wells" > To: openstack-operators@lists.openstack.org > > Greetings, > Trying to decide if this is a bug or just a config option that I can't > find. The setup I'm currently testing in my lab with is two co

[Openstack-operators] Migrating an instance to a host with less cores fails

2015-05-15 Thread Aubrey Wells
Greetings, Trying to decide if this is a bug or just a config option that I can't find. The setup I'm currently testing in my lab with is two compute nodes running Kilo, one has 40 cores (2x 10c with HT) and one has 16 cores (2x 4c + HT). I don't have any CPU pinning enabled in my nova config, whic