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Posted to users@cloudstack.apache.org by Nevo <sn...@gmail.com> on 2013/12/30 13:29:17 UTC
suspend/pause cloudstack VM (kvm hypervisor)
Hi all!
Sorry if my question (see the subject) has been asked before, as it's indeed (http://markmail.org/message/apchw5rsf4xgevt4?q=list:org%2Eapache%2Eincubator%2Ecloudstack-%2A+suspend). But since I saw no further update on that issue, maybe I could check out here first. My box is running cloudstack 4.2.0 on ubuntu 12.04 (desktop). The hypervisor is kvm as you probably know. it would be great to be able to suspend/resume my VMs now and then so I could have my PC take a break sometimes. Can anyone suggest whether it's possible to support that? It seems we can do it via "virsh": https://help.ubuntu.com/community/KVM/Managing , but not cloudstack API?
Thanks!
Nevo
Re: suspend/pause cloudstack VM (kvm hypervisor)
Posted by Nevo <sn...@gmail.com>.
So I was probably wrong or making some confusion here. I could indeed suspend a VM from the command line via "virsh save" (not virsh suspend) and restore its state. It's just cloudstack default admin UI doesn't have an option to do that.
Check out openstack: https://wiki.openstack.org/wiki/Kvm-Pause-Suspend
Nevo
On Jan 7, 2014, at 10:22 PM, Nux! <nu...@li.nux.ro> wrote:
> On 07.01.2014 10:10, Nevo wrote:
>
>> Probably the real question is whether kvm could/will support "vm snapshot"?
>
> I'm sure it will support it. We just need to push for it. :)
>
> --
> Sent from the Delta quadrant using Borg technology!
>
> Nux!
> www.nux.ro
Re: suspend/pause cloudstack VM (kvm hypervisor)
Posted by Nux! <nu...@li.nux.ro>.
On 07.01.2014 10:10, Nevo wrote:
>
> Probably the real question is whether kvm could/will support "vm
> snapshot"?
I'm sure it will support it. We just need to push for it. :)
--
Sent from the Delta quadrant using Borg technology!
Nux!
www.nux.ro
Re: suspend/pause cloudstack VM (kvm hypervisor)
Posted by Nevo <sn...@gmail.com>.
Hi Nux!
That's why I said real "suspension" might rely on "virtual machine snapshot with memory capturing". see this discussion: http://markmail.org/message/apchw5rsf4xgevt4?q=list:org%2Eapache%2Eincubator%2Ecloudstack-%2A+suspend
Probably the real question is whether kvm could/will support "vm snapshot"?
Nevo
On Jan 7, 2014, at 8:04 PM, Nux! <nu...@li.nux.ro> wrote:
> On 06.01.2014 22:10, Nevo wrote:
>> Hi Sebgoa!
>> Thanks for your suggest. I knew how to start/stop VM, but what I
>> wanted is pause a VM without shutdown (or stop in CS term). Using
>> "virsh" could "suspend" a VM, but I doubt it is a real "suspend" which
>> will capture the current VM memory. I guess this feature relies on
>> unsupported "virtual machine snapshot" for kvm, right?
>
> Hi,
>
> Implementing VM suspension might be tricky, in that what if the host gets rebooted? The VM will not be "started" in suspended mode, it will be running normally potentially creating head aches and so on. That's the main problem I see with this feature.
>
> --
> Sent from the Delta quadrant using Borg technology!
>
> Nux!
> www.nux.ro
Re: suspend/pause cloudstack VM (kvm hypervisor)
Posted by Nux! <nu...@li.nux.ro>.
On 06.01.2014 22:10, Nevo wrote:
> Hi Sebgoa!
> Thanks for your suggest. I knew how to start/stop VM, but what I
> wanted is pause a VM without shutdown (or stop in CS term). Using
> "virsh" could "suspend" a VM, but I doubt it is a real "suspend" which
> will capture the current VM memory. I guess this feature relies on
> unsupported "virtual machine snapshot" for kvm, right?
Hi,
Implementing VM suspension might be tricky, in that what if the host
gets rebooted? The VM will not be "started" in suspended mode, it will
be running normally potentially creating head aches and so on. That's
the main problem I see with this feature.
--
Sent from the Delta quadrant using Borg technology!
Nux!
www.nux.ro
Re: suspend/pause cloudstack VM (kvm hypervisor)
Posted by Nevo <sn...@gmail.com>.
Hi Sebgoa!
Thanks for your suggest. I knew how to start/stop VM, but what I wanted is pause a VM without shutdown (or stop in CS term). Using "virsh" could "suspend" a VM, but I doubt it is a real "suspend" which will capture the current VM memory. I guess this feature relies on unsupported "virtual machine snapshot" for kvm, right?
Nevo
On Jan 7, 2014, at 1:43 AM, sebgoa <ru...@gmail.com> wrote:
>
> On Dec 30, 2013, at 1:29 PM, Nevo <sn...@gmail.com> wrote:
>
>> Hi all!
>> Sorry if my question (see the subject) has been asked before, as it's indeed (http://markmail.org/message/apchw5rsf4xgevt4?q=list:org%2Eapache%2Eincubator%2Ecloudstack-%2A+suspend). But since I saw no further update on that issue, maybe I could check out here first. My box is running cloudstack 4.2.0 on ubuntu 12.04 (desktop). The hypervisor is kvm as you probably know. it would be great to be able to suspend/resume my VMs now and then so I could have my PC take a break sometimes. Can anyone suggest whether it's possible to support that? It seems we can do it via "virsh": https://help.ubuntu.com/community/KVM/Managing , but not cloudstack API?
>>
>
> Hi, you can start/stop Vm with the API :
> http://cloudstack.apache.org/docs/api/apidocs-4.2/root_admin/startVirtualMachine.html
>
> try it with cloud monkey: https://pypi.python.org/pypi/cloudmonkey/
>
>> Thanks!
>>
>>
>> Nevo
>
Re: suspend/pause cloudstack VM (kvm hypervisor)
Posted by sebgoa <ru...@gmail.com>.
On Dec 30, 2013, at 1:29 PM, Nevo <sn...@gmail.com> wrote:
> Hi all!
> Sorry if my question (see the subject) has been asked before, as it's indeed (http://markmail.org/message/apchw5rsf4xgevt4?q=list:org%2Eapache%2Eincubator%2Ecloudstack-%2A+suspend). But since I saw no further update on that issue, maybe I could check out here first. My box is running cloudstack 4.2.0 on ubuntu 12.04 (desktop). The hypervisor is kvm as you probably know. it would be great to be able to suspend/resume my VMs now and then so I could have my PC take a break sometimes. Can anyone suggest whether it's possible to support that? It seems we can do it via "virsh": https://help.ubuntu.com/community/KVM/Managing , but not cloudstack API?
>
Hi, you can start/stop Vm with the API :
http://cloudstack.apache.org/docs/api/apidocs-4.2/root_admin/startVirtualMachine.html
try it with cloud monkey: https://pypi.python.org/pypi/cloudmonkey/
> Thanks!
>
>
> Nevo