[libvirt-users] state of setvcpus
Hello. Does someone know in what state setvcpu command is? I get: virsh # setvcpus gentookvm 4 error: internal error: cannot change vcpu count of this domain and error : qemuDomainHotplugVcpus:4087 : internal error: cannot change vcpu count of this domain Does this work for someone? cheers t.
On 08/09/2013 06:26 AM, Thomas Stein wrote:
Hello.
Does someone know in what state setvcpu command is?
I get:
virsh # setvcpus gentookvm 4 error: internal error: cannot change vcpu count of this domain
and
error : qemuDomainHotplugVcpus:4087 : internal error: cannot change vcpu count of this domain
Does this work for someone?
It works for xen:// URIs. Upstream qemu vcpu hotplug is still a work in progress; I don't know if qemu 1.6 will support it, or if you'll have to wait for qemu 1.7. Meanwhile, you can try using 'setvcpus gentookvm --guest 4' to use the guest agent (assuming you have qemu-ga running in the guest, and the proper plumbing of the guest agent channel in your domain XML) to use the guest to take vcpus on- or offline. -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
Am 09.08.13 15:09, schrieb Eric Blake:
On 08/09/2013 06:26 AM, Thomas Stein wrote:
Hello.
Does someone know in what state setvcpu command is?
I get:
virsh # setvcpus gentookvm 4 error: internal error: cannot change vcpu count of this domain
and
error : qemuDomainHotplugVcpus:4087 : internal error: cannot change vcpu count of this domain
Does this work for someone?
It works for xen:// URIs. Upstream qemu vcpu hotplug is still a work in progress; I don't know if qemu 1.6 will support it, or if you'll have to wait for qemu 1.7. Meanwhile, you can try using 'setvcpus gentookvm --guest 4' to use the guest agent (assuming you have qemu-ga running in the guest, and the proper plumbing of the guest agent channel in your domain XML) to use the guest to take vcpus on- or offline.
Tried that with no luck so far. virsh # setvcpus gentookvm --guest 2 error: internal error: unable to execute QEMU agent command 'guest-get-vcpus': The command guest-get-vcpus has not been found It's qemu-1.4.2 and libvirt-1.1.1. In general it seems to work. virsh # shutdown 3 --mode agent Domain 3 is being shutdown Any hints? And once again, thanks for your support Eric. cheers t.
On 08/09/2013 09:01 AM, Thomas Stein wrote:
Meanwhile, you can try using 'setvcpus gentookvm --guest 4' to use the guest agent (assuming you have qemu-ga running in the guest, and the proper plumbing of the guest agent channel in your domain XML) to use the guest to take vcpus on- or offline.
Tried that with no luck so far.
virsh # setvcpus gentookvm --guest 2 error: internal error: unable to execute QEMU agent command 'guest-get-vcpus': The command guest-get-vcpus has not been found
It's qemu-1.4.2 and libvirt-1.1.1.
There's your problem. Guest-agent support for hotplug wasn't introduced until qemu 1.5. Upgrade at least your qemu-ga in your guest, and probably also the qemu running your guest. -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
Am 09.08.13 17:03, schrieb Eric Blake:
On 08/09/2013 09:01 AM, Thomas Stein wrote:
Meanwhile, you can try using 'setvcpus gentookvm --guest 4' to use the guest agent (assuming you have qemu-ga running in the guest, and the proper plumbing of the guest agent channel in your domain XML) to use the guest to take vcpus on- or offline.
Tried that with no luck so far.
virsh # setvcpus gentookvm --guest 2 error: internal error: unable to execute QEMU agent command 'guest-get-vcpus': The command guest-get-vcpus has not been found
It's qemu-1.4.2 and libvirt-1.1.1.
There's your problem. Guest-agent support for hotplug wasn't introduced until qemu 1.5. Upgrade at least your qemu-ga in your guest, and probably also the qemu running your guest.
Okay, thank you. cheers t.
On Friday 09 August 2013 09:03:50 Eric Blake wrote:
On 08/09/2013 09:01 AM, Thomas Stein wrote:
Meanwhile, you can try using 'setvcpus gentookvm
--guest 4' to use the guest agent (assuming you have qemu-ga running in the guest, and the proper plumbing of the guest agent channel in your domain XML) to use the guest to take vcpus on- or offline.
Tried that with no luck so far.
virsh # setvcpus gentookvm --guest 2 error: internal error: unable to execute QEMU agent command 'guest-get-vcpus': The command guest-get-vcpus has not been found
It's qemu-1.4.2 and libvirt-1.1.1.
There's your problem. Guest-agent support for hotplug wasn't introduced until qemu 1.5. Upgrade at least your qemu-ga in your guest, and probably also the qemu running your guest.
Just upgraded qemu-quest-agent to 1.5.2 and now it works. Cool. Host still at 1.4.2 by the way. Thanks again. cheers t.
participants (2)
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Eric Blake -
Thomas Stein