Re: [openstack-dev] [nova][ceilometer] proposal to send bulk hypervisor stats data in periodic notifications

2015-06-26 Thread Matt Riedemann
On 6/22/2015 4:55 AM, Daniel P. Berrange wrote: On Sun, Jun 21, 2015 at 11:14:00AM -0500, Matt Riedemann wrote: On 6/20/2015 3:35 PM, Daniel P. Berrange wrote: On Sat, Jun 20, 2015 at 01:50:53PM -0500, Matt Riedemann wrote: Waking up from a rare nap opportunity on a Saturday, this is what

Re: [openstack-dev] [nova][ceilometer] proposal to send bulk hypervisor stats data in periodic notifications

2015-06-26 Thread Matt Riedemann
On 6/26/2015 2:17 PM, Matt Riedemann wrote: On 6/22/2015 4:55 AM, Daniel P. Berrange wrote: On Sun, Jun 21, 2015 at 11:14:00AM -0500, Matt Riedemann wrote: On 6/20/2015 3:35 PM, Daniel P. Berrange wrote: On Sat, Jun 20, 2015 at 01:50:53PM -0500, Matt Riedemann wrote: Waking up from a

Re: [openstack-dev] [nova][ceilometer] proposal to send bulk hypervisor stats data in periodic notifications

2015-06-22 Thread Kevin L. Mitchell
On Mon, 2015-06-22 at 18:10 +0100, Daniel P. Berrange wrote: On Mon, Jun 22, 2015 at 11:10:40AM -0500, Kevin L. Mitchell wrote: On Sat, 2015-06-20 at 21:35 +0100, Daniel P. Berrange wrote: In general I would say that is an unsupported deployment scenario to have other random virt guests

Re: [openstack-dev] [nova][ceilometer] proposal to send bulk hypervisor stats data in periodic notifications

2015-06-22 Thread Daniel P. Berrange
On Mon, Jun 22, 2015 at 11:10:40AM -0500, Kevin L. Mitchell wrote: On Sat, 2015-06-20 at 21:35 +0100, Daniel P. Berrange wrote: In general I would say that is an unsupported deployment scenario to have other random virt guests running on a nova compute node. On the other hand, this is

Re: [openstack-dev] [nova][ceilometer] proposal to send bulk hypervisor stats data in periodic notifications

2015-06-22 Thread Kevin L. Mitchell
On Sat, 2015-06-20 at 21:35 +0100, Daniel P. Berrange wrote: In general I would say that is an unsupported deployment scenario to have other random virt guests running on a nova compute node. On the other hand, this is exactly how compute nodes themselves are often deployed—a random guest on

Re: [openstack-dev] [nova][ceilometer] proposal to send bulk hypervisor stats data in periodic notifications

2015-06-22 Thread Maish Saidel-Keesing
On 06/22/15 20:10, Daniel P. Berrange wrote: On Mon, Jun 22, 2015 at 11:10:40AM -0500, Kevin L. Mitchell wrote: On Sat, 2015-06-20 at 21:35 +0100, Daniel P. Berrange wrote: In general I would say that is an unsupported deployment scenario to have other random virt guests running on a nova

Re: [openstack-dev] [nova][ceilometer] proposal to send bulk hypervisor stats data in periodic notifications

2015-06-22 Thread Daniel P. Berrange
On Sun, Jun 21, 2015 at 11:14:00AM -0500, Matt Riedemann wrote: On 6/20/2015 3:35 PM, Daniel P. Berrange wrote: On Sat, Jun 20, 2015 at 01:50:53PM -0500, Matt Riedemann wrote: Waking up from a rare nap opportunity on a Saturday, this is what was bothering me: The proposal in the

Re: [openstack-dev] [nova][ceilometer] proposal to send bulk hypervisor stats data in periodic notifications

2015-06-21 Thread Matt Riedemann
On 6/20/2015 3:35 PM, Daniel P. Berrange wrote: On Sat, Jun 20, 2015 at 01:50:53PM -0500, Matt Riedemann wrote: Waking up from a rare nap opportunity on a Saturday, this is what was bothering me: The proposal in the etherpad assumes that we are just getting bulk host/domain/guest VM stats

Re: [openstack-dev] [nova][ceilometer] proposal to send bulk hypervisor stats data in periodic notifications

2015-06-20 Thread Daniel P. Berrange
On Sat, Jun 20, 2015 at 01:50:53PM -0500, Matt Riedemann wrote: Waking up from a rare nap opportunity on a Saturday, this is what was bothering me: The proposal in the etherpad assumes that we are just getting bulk host/domain/guest VM stats from the hypervisor and sending those in a

Re: [openstack-dev] [nova][ceilometer] proposal to send bulk hypervisor stats data in periodic notifications

2015-06-20 Thread Matt Riedemann
On 6/17/2015 10:52 AM, Matt Riedemann wrote: Without getting into the details from the etherpad [1], a few of us in IRC today were talking about how the ceilometer compute-agent polls libvirt directly for guest VM statistics and how ceilometer should really be getting this information from

Re: [openstack-dev] [nova][ceilometer] proposal to send bulk hypervisor stats data in periodic notifications

2015-06-17 Thread gordon chung
not familiar/smart enough to comment on design within Nova but i'm very much in favour if this is possible. the polling option in Ceilometer was always a means to get information not readily available via notifications. that said, i don't think we can completely do away with polling. i'm

[openstack-dev] [nova][ceilometer] proposal to send bulk hypervisor stats data in periodic notifications

2015-06-17 Thread Matt Riedemann
Without getting into the details from the etherpad [1], a few of us in IRC today were talking about how the ceilometer compute-agent polls libvirt directly for guest VM statistics and how ceilometer should really be getting this information from nova via notifications sent from a periodic task

Re: [openstack-dev] [nova][ceilometer] proposal to send bulk hypervisor stats data in periodic notifications

2015-06-17 Thread Jason Myers
I was involved in the IRC discussion, but to reiterate here this would be a wonderful thing to get done. The current polling can be terribly inefficient, and the ceilo team is already looking into other ways to reduce the impact of it. I'm looking forward to helping with this. Cheers, Jason On